SlideShare a Scribd company logo
1 of 38
Steve Magness
University of Houston
stevemagness@gmail.com
Old School-
Anti Science
Science is God
Both are wrong
 This presentation will be different.
◦ The first part will be philosophical
◦ The 2nd part will be fun stuff- real world
examples and application
◦ The last part will be controversial
 Evidence based?
 only 13% of all treatments used by doctors have good
evidence
 an additional 21% of treatments that are “likely”
beneficial.
 What about the other 66%?
 Is Science Bad? No, but…
 You have to understand it‟s limitations in
order to know how to use it.
 Science conforms to the individual:
 Average vs. Individual
 Research focuses on the average.
 Responder vs. non responder in coach speak is actually an
issue of applying the correct stimulus
 Do we really expect 4mi tempo at X pace to work for
everyone?
 Timmons et al.(2011) put it best when talking about the
non-responder phenomenon:
“It is also an observation that is largely ignored by the
majority of researchers interested in the health benefits
of exercise training, presumably because the focus has
been on the “average” health benefits within a population
and the desire to have a simple health promotion
message.”
◦ Measurement
 We overemphasize the importance of what we can
measure.
 Science evolves based on what we can measure at the
time.
 VO2max
 Vollaard et al. (2009) “Moreover, we demonstrate that
VO2max and aerobic performance associate with distinct and
separate physiological and biochemical endpoints,
suggesting that proposed models for the determinants of
endurance performance may need to be revisited (pg. 1483)”.
Researchers=
No change
Coaches=WHY
the individual
differences?
 (i.e. If I‟m that guy at 6%
increase I sure think it
works!)
J Appl Physiol. 2011 Oct 27. [Epub ahead of print]
"Live high - train low" using normobaric hypoxia: A double-blinded, placebo-
controlled study.
 The isolation approach:
 Scientist- break It down to isolate a variable
 X effects Y and Y is RELATED to performance so it
should work…
 Coach- Global approach
 X effects A,B,C,D, etc. How everything interacts is
more important
 All sorts of other crap
(population, equipment, study
length, long term vs. short term, etc.)
1. Deciding whether something is
useful:
 Stool test
 1.Practical- Does it work in the
“real world.”
 2. Research- Is there scientific
research on it and does it confirm
that it works?
 3. Theory- Is there a legitimate,
non-pseudoscientific, theory for
why it might work?
2. Using scientific Knowledge to formulate Real
world ideas
 Use knowledge of HOW body works and learn
how to apply that knowledge.
 Lactate Curve
◦ How?
◦ What it means?
◦ Missing variable- MAX Lactate
0
1
2
3
4
5
6
7
8
9
4:264:334:404:484:555:025:095:165:245:31
Lactate(mmol)
Mile pace
Lactate Levels
1st test
2nd test
3rd test
◦ Test 2- Sprint+ aerobic
◦ Test 3- overdid speed
side
0
1
2
3
4
5
6
7
8
9
10
16.5 17 17.5 18 18.5 19 19.5
1/5/2012
test 1
MAX
Test 1:
61.8-13.7
Test 2:
59.8- 14.2
0
1
2
3
4
5
6
7
8
9
4:404:484:555:025:095:165:24
Lactate
Mile pace
Lactate changes
9/4/2006
11/2/2006
Max Lactate
1st test-
51.5 400m- 14.8
2nd test
51.2 400m- 15.4
 Data from Renato Canova
0
2
4
6
8
10
12
14
16
18
2000 4000 6000 8000 10000 finish
Research
Elites
STEADY STATE!!
 Passive versus Active
◦ Stretch Reflexes…
◦ Inertial forces
 What it looks like versus what is actually going on are
different.
Casio Exilim (High speed cameras-$150)
Speed R leg GC L leg GC
Flight
Time (R
to L or L
to R)
Flight/G
C time
ratio
2nd 200 28.3ish 0.164
4th 200 28ish 0.154
5th 200 28 0.153 0.15 0.155 1.03333
7th 200 27.8 0.157 0.153 0.141 0.89808
8th 200 28.2 0.158 0.15 0.164 1.03797
 Using Smart Phones
◦ Data base
◦ Rate:
 Overall feeling/RPE
 Workout rating
 “Pop” in legs
 Injuries/Soreness
◦ Simple Reaction Test
 10 test reaction test (track avg.)
 Looks at neural fatigue somewhat
◦ Look for trends and correlate to training logs
 Enhancing your decision making skills
 Creating and applying models to help
decision making
◦ Simple fatigue models to determine workouts
 Simple fatigue models
 Muscle Fiber theory and application to kick
development
 Fasted Runs
◦ Theory-low glycogen is signal for adaptation. Shifts fuel
usage towards more fat
◦ Research- Drust et al.(2009), Yeo et al. (2008)
◦ Practical-Lydiard, Cerutty, Van Aaken,Kenyans,
Canadians (!?)
 Practical- start with running before breakfast for 30min,
slowly increase up to close to 2hrs for marathoners. 1-2x a
week depending on goal/time. EASY training after
(RECOVER)
 Adapting the gut
◦ Can increase the amount of Carbohydrate our gut can
process=enhanced marathon performance with lower GI
stress
◦ Practical experience- eat dinner, go run- after a week
you‟ll be fine with no GI problems.
Drust B, Morton JP. Promoting Endurance Training Adaptations with Nutritional
Interventions: The Potential Benefits of “Low Carbohydrate” Training. Kinesiology
2009; 41: 19–24.
 Knowledge:
◦ Research shows knowledge of external feedback affects
performance
◦ Real world experience shows people occasionally
“rebound” after looking like death in a race because they
realize they are close to finish…
 Real World Solution
◦ Take it all away.
◦ Blind Feedback workouts- do workouts without
knowledge of how long the rep is, what exact pace
is, when surges will come,etc.
◦ Switches focus to training on dealing with internal
cues/feedback and improves psychological drive during
uncertainty.
 Knowledge:
◦ “The greater the ability of the athlete to oppose fatigue (by maintaining
strength levels), the smaller the drop in speed and consequently the better the
performance.” Miguel et al. 2004
◦ 400m race- (Numella et al. 1992,1994)
 Force production drops 16% after 300m and 25% after 400m.
 Increase in muscle activity (measured by EMG) to compensate for
failure of muscle fibers that were doing the work.
 Kick development:
◦ 1.Increase maximum fibers recruited
 Flat Sprints, Hill Sprints, Power work
◦ 2. Improve ability to use for prolonged time
 Circuits, alternations, hills+flats
◦ 3. Learn to recruit them under high acidity
 fast workouts with bounding/hills
 2x500(200 at faster than 800 pace, 100m bound at near mile pace, 200m kick in)
full rest between
 Works by 1st part Increase lactate/fatigue, 2nd part increases fibers recruited, last part
teaches you to use those fibers while fatigued
 Circuits with fast speed running, max intensity bounding and exercises
 3-4x400m of 25sprint/25 cruise
Miguel, P. J. P. & Reis, V. M. M. (2004). Speed strength endurance and
400m performance. New Studies in Athletics
 Signal pathway
interactions
◦ Gives you the dose,
the timing, and the
interaction
Adaptation
Process
RBC
example
Altitude
Decrease
O2 levels
Hif-1a
EPO
RBC
increase
Messenger Signaling Pathways
initiated
Functional Results
Mechanical Stretch-
frequency and intensity
CaMK, MAPK and
IGF pathways
Hypertrophy, fast to slow
fiber type conversions,
Changes in Calcium
levels in the cell
CaMK, MAPK, protein
kinase C
Hypertrophy, slow twitch
fiber type conversion,
mitochondria
NAD: NADH ratio
Low muscle glycogen AMPK and MAPK Increased mitochondria
ATP:AMP ratio AMPK Increased mitochondria
Decreased blood Oxygen
levels
HIF-1 Increased EPO and Red
Blood cells
PI3-k and Akt mTOR Muscle Hypertrophy
MAPK=Mitogen activated protein kinase IGF-Insulin Like Growth Factor
PI3-k= Phosphatidylinositol 3-kinase
CaMK=Calcium/Calmodulin pathway
Why care?
•Interactions matter:
•AMPK inhibits mTOR
•Do endurance work AFTER strength and you inhibit hypertrophy
•Knowledge of stimulus
•Explains why training does what:
•AMPK and CaMK can both Increase mitochondria.
•AMPK= activated through endurance.
•CaMK= activated through intense intervals.
Laursen, P. Training for Intense exercise performance: High
volume or high intensity. 2009
1. Remember the Brain?
◦ Most new research/ideas revolve on the change in
mindset.
◦ The brain is a smart controller, synthesizing
information, making calculations based on complex
algorithm, and dictating what happens.
◦ Input/Feedback is key.
2. Body is well designed.
◦ Timing matters, and knowing when to manipulate
matters.
Baron et al.(2012). The role of emotions on pacing
strategies and
performance in middle and long duration sport
events
•Feedback
•Block with drugs and pacing is erratic (out hard and die)
•Deception
•Castle et al.- exercise in heat is effected by what
thermometer reads
•Ness and Patton- changed labels of weights after 5 weeks,
athletes lifted 20lb more for their max
•Knowing vs. not knowing (distance, reps, pace, etc.)
•Manipulating psychological drive
•dissociative cognitive strategy
•TRAINING- Training improves our ability to assimilate feedback and
use it better in regards to riding that edge/pacing.
•Become an Expert!
“„inner dialogue‟ that occurs during
exercise may be the „competition‟
between psychological drives and
physiological homeostatic control
mechanisms” St. Clair Gibson,2013
Psychological Drive
Maintaining
Homeostasis
◦ Antioxidants
 Free radicals
activate AMPK which increase
Mitochondria
◦ Ice baths
 Blocks inflammation
 Reduces Recovery
◦ Ibuprofen
 Can block satellite cell
 Reduce Recovery
Antioxidant Supplementation during Exercise Training: Beneficial or Detrimental?
Sports MedicineV olume 41 - Issue 12 - pp 1043-1069
 Anti-inflammatory
◦ At what point during the inflammatory cycle do you
impede?
 Refueling
◦ Low Glycogen needed for certain types of adaptations
 Hydration
◦ In adapting to high heat/humidity, research shows need
some dehydration to get beneficial effects
 Supplement intake
◦ Hepcidin rises post workout for ~3-4hrs…limits Iron
absorption
 Taking iron pill in that window…decreases absorption…
 Don‟t over recover.
 Periodize recovery so you use it when you
need it
◦ Base and Pre competition phase
 Damage is good
 Selectively use recovery modalities when athlete is on
“edge”
◦ Peaking
 Slight increase in recovery modalities because
emphasis shifts from training to racing
 Testosterone and muscle growth
◦ Elevated systemic hormones does not effect muscle
hypertrophy
 Chronically supraphysiological levels (i.e. drugs) aids
muscle growth, not what we get in regular acute
exercise.
 Compression Socks
◦ Blood Flow not the issue
◦ Modulates muscle “tuning” (think vibrations)
 Stretching
 Hands over head
◦ Let your kids fall over
Elevations in ostensibly anabolic hormones with resistance exercise enhance neither
training2 induced muscle hypertrophy nor strength of the elbow flexors. J Appl Physiol (
 Cushioning and
Pronation= Broken
Paradigm
 Running surface-
◦ “hard” surfaces not evil
if they‟re accustomed
to it.
 Individualization
◦ Feel most important
Pronatio
n-Left Right
Footstrik
e
Orthotics? Initial Max change Initial Max Change Degree GC
Flight
Time Footstrike
Lunar Fly NO 183 176 7 172 182 10 93.6 0.214 0.114whole
Lunar Fly YES 182 175 7 176 185 9
Katanas No 184 175 9 175 185 10 92 0.195 0.128midfoot
Lunar Racers No 184 175 9 173 186 13 93.4 0.2 0.123whole
Lunar Racers YES 185 176 9 174 185 11 98 0.209 0.119Heel
Pegasus No 181 173 8 178 188 10 100.7 0.214 0.104Heel
Pegasus yes 185 176 9 177 188 11 101.6 0.214 0.109Heel
Vomeros Yes 184 174 10 174 186 12 96.5 0.204 0.114heel
Barefoot No 0 0 93.8 0.195 0.119forefoot
0 0
*Footstrike
degree=90=
foot directly
under knee
 Use Science, don‟t be married to it.
 Stimulus-> Adaptation
◦ What adaptation are you looking for?
 Lab vs. Real World
 Average vs. Individuals
 Know what you‟re testing for and what the
measurement means.
 www.scienceofrunning.com
 stevemagness@gmail.com
 Twitter: @stevemagness

More Related Content

What's hot

Analysis of Sebastian Coe's Training Methods
Analysis of Sebastian Coe's Training Methods   Analysis of Sebastian Coe's Training Methods
Analysis of Sebastian Coe's Training Methods Chris Hattersley
 
Principles and practices of agility training
Principles and practices of agility trainingPrinciples and practices of agility training
Principles and practices of agility trainingJohn Cissik
 
USA Cycling Coach Webinar long slow distance or high intensity
USA Cycling Coach Webinar long slow distance or high intensityUSA Cycling Coach Webinar long slow distance or high intensity
USA Cycling Coach Webinar long slow distance or high intensityWill Kirousis, MS, CSCS, CISSN
 
Power Track Curriculum Rough Draft
Power Track Curriculum Rough DraftPower Track Curriculum Rough Draft
Power Track Curriculum Rough DraftBill Hogue
 
Principles of Training
Principles of TrainingPrinciples of Training
Principles of TrainingJohn Cissik
 
Art and science of tapering: Maximizing race day performance for endurance at...
Art and science of tapering: Maximizing race day performance for endurance at...Art and science of tapering: Maximizing race day performance for endurance at...
Art and science of tapering: Maximizing race day performance for endurance at...Will Kirousis, MS, CSCS, CISSN
 
Post-Activation Potentiation Regarding Baseball Swing Velocity
Post-Activation Potentiation Regarding Baseball Swing Velocity Post-Activation Potentiation Regarding Baseball Swing Velocity
Post-Activation Potentiation Regarding Baseball Swing Velocity Austen Hutton
 
Guide to intermidiate bodybuilding
Guide to intermidiate bodybuildingGuide to intermidiate bodybuilding
Guide to intermidiate bodybuildingimaduddin91
 
Ahead Interval Training guide
Ahead Interval Training guideAhead Interval Training guide
Ahead Interval Training guidealtonbaird
 
Fitness tools and trends
Fitness tools and trendsFitness tools and trends
Fitness tools and trendsJohn Cissik
 
Training of top distance swimmers
Training of top distance swimmersTraining of top distance swimmers
Training of top distance swimmersMark Rauterkus
 
Grit cardio 02 choreography booklet
Grit cardio 02 choreography bookletGrit cardio 02 choreography booklet
Grit cardio 02 choreography bookletgiovanni0914
 
Triplemusclemass
TriplemusclemassTriplemusclemass
TriplemusclemassAta Alvi
 

What's hot (20)

Analysis of Sebastian Coe's Training Methods
Analysis of Sebastian Coe's Training Methods   Analysis of Sebastian Coe's Training Methods
Analysis of Sebastian Coe's Training Methods
 
Principles and practices of agility training
Principles and practices of agility trainingPrinciples and practices of agility training
Principles and practices of agility training
 
USA Cycling Coach Webinar long slow distance or high intensity
USA Cycling Coach Webinar long slow distance or high intensityUSA Cycling Coach Webinar long slow distance or high intensity
USA Cycling Coach Webinar long slow distance or high intensity
 
Power Track Curriculum Rough Draft
Power Track Curriculum Rough DraftPower Track Curriculum Rough Draft
Power Track Curriculum Rough Draft
 
Principles of Training
Principles of TrainingPrinciples of Training
Principles of Training
 
Art and science of tapering: Maximizing race day performance for endurance at...
Art and science of tapering: Maximizing race day performance for endurance at...Art and science of tapering: Maximizing race day performance for endurance at...
Art and science of tapering: Maximizing race day performance for endurance at...
 
Strength Training & Cycling
Strength Training & CyclingStrength Training & Cycling
Strength Training & Cycling
 
Long slow distance or high intensity
Long slow distance or high intensityLong slow distance or high intensity
Long slow distance or high intensity
 
Poe training
Poe trainingPoe training
Poe training
 
Post-Activation Potentiation Regarding Baseball Swing Velocity
Post-Activation Potentiation Regarding Baseball Swing Velocity Post-Activation Potentiation Regarding Baseball Swing Velocity
Post-Activation Potentiation Regarding Baseball Swing Velocity
 
Intensity metric triangulation
Intensity metric triangulationIntensity metric triangulation
Intensity metric triangulation
 
Weeks - Grip Strength
Weeks - Grip StrengthWeeks - Grip Strength
Weeks - Grip Strength
 
Guide to intermidiate bodybuilding
Guide to intermidiate bodybuildingGuide to intermidiate bodybuilding
Guide to intermidiate bodybuilding
 
Ahead Interval Training guide
Ahead Interval Training guideAhead Interval Training guide
Ahead Interval Training guide
 
Ruf -Organizing Yearly plan
Ruf -Organizing Yearly planRuf -Organizing Yearly plan
Ruf -Organizing Yearly plan
 
Fitness tools and trends
Fitness tools and trendsFitness tools and trends
Fitness tools and trends
 
High-Intensity Training [YLMSportScience 2015]
High-Intensity Training [YLMSportScience 2015]High-Intensity Training [YLMSportScience 2015]
High-Intensity Training [YLMSportScience 2015]
 
Training of top distance swimmers
Training of top distance swimmersTraining of top distance swimmers
Training of top distance swimmers
 
Grit cardio 02 choreography booklet
Grit cardio 02 choreography bookletGrit cardio 02 choreography booklet
Grit cardio 02 choreography booklet
 
Triplemusclemass
TriplemusclemassTriplemusclemass
Triplemusclemass
 

Similar to Science and performance

Myths about exercise & nutrition_MDRF_2014
Myths about exercise & nutrition_MDRF_2014Myths about exercise & nutrition_MDRF_2014
Myths about exercise & nutrition_MDRF_2014Dr. Nayanjeet Chaudhury
 
Nasm optima 2019 one size fits one
Nasm optima 2019 one size fits oneNasm optima 2019 one size fits one
Nasm optima 2019 one size fits oneCharlie Hoolihan
 
Honors Final Paper
Honors Final PaperHonors Final Paper
Honors Final PaperHaley Young
 
grade 7 lesson Pysical education sports science (2).pdf
grade 7 lesson Pysical education sports science (2).pdfgrade 7 lesson Pysical education sports science (2).pdf
grade 7 lesson Pysical education sports science (2).pdfVergilSYbaez
 
How Much is Too Much in Gymnastics? Practical Applications of Workload Scienc...
How Much is Too Much in Gymnastics? Practical Applications of Workload Scienc...How Much is Too Much in Gymnastics? Practical Applications of Workload Scienc...
How Much is Too Much in Gymnastics? Practical Applications of Workload Scienc...DavidTilley17
 
Introduction to exercise physiology
Introduction to exercise physiologyIntroduction to exercise physiology
Introduction to exercise physiologyAirickson
 
Week 17 the scientific method lecture lm
Week 17   the scientific method lecture lmWeek 17   the scientific method lecture lm
Week 17 the scientific method lecture lmSteve Saffhill
 
Brain and exercise_presentation
Brain and exercise_presentationBrain and exercise_presentation
Brain and exercise_presentationCMoondog
 
Let’s master the digital toolkit to harness lifelong neuroplasticity
Let’s master the digital toolkit to harness lifelong neuroplasticityLet’s master the digital toolkit to harness lifelong neuroplasticity
Let’s master the digital toolkit to harness lifelong neuroplasticitySharpBrains
 
How Much is Too Much for Young Gymnasts? PDF Slides
How Much is Too Much for Young Gymnasts? PDF SlidesHow Much is Too Much for Young Gymnasts? PDF Slides
How Much is Too Much for Young Gymnasts? PDF SlidesDavidTilley17
 
Asca flexibility dimensions
Asca flexibility dimensionsAsca flexibility dimensions
Asca flexibility dimensionsCharlie Hoolihan
 
Mechanisms Of Therapeutic Exercise Progression - TPTA Annual Conference 2011
Mechanisms Of Therapeutic Exercise Progression - TPTA Annual Conference 2011Mechanisms Of Therapeutic Exercise Progression - TPTA Annual Conference 2011
Mechanisms Of Therapeutic Exercise Progression - TPTA Annual Conference 2011Allan Besselink
 
Strength training for older adults: What the public health messaging should be
Strength training for older adults: What the public health messaging should beStrength training for older adults: What the public health messaging should be
Strength training for older adults: What the public health messaging should beChris Hattersley
 
Rat Model, Physical Activity, and Eating Behavior 8 April 2014
Rat Model, Physical Activity, and Eating Behavior 8 April 2014Rat Model, Physical Activity, and Eating Behavior 8 April 2014
Rat Model, Physical Activity, and Eating Behavior 8 April 2014Kylie Pybus
 
Sedentary behavior and inactivity physiology slideshare presentation
Sedentary behavior and inactivity physiology slideshare presentationSedentary behavior and inactivity physiology slideshare presentation
Sedentary behavior and inactivity physiology slideshare presentationyannisguerra
 
Effect of brisk walking on flexibility of sedentary college students
Effect of brisk walking on flexibility of sedentary college studentsEffect of brisk walking on flexibility of sedentary college students
Effect of brisk walking on flexibility of sedentary college studentsAlexander Decker
 

Similar to Science and performance (19)

Myths about exercise & nutrition_MDRF_2014
Myths about exercise & nutrition_MDRF_2014Myths about exercise & nutrition_MDRF_2014
Myths about exercise & nutrition_MDRF_2014
 
Nasm optima 2019 one size fits one
Nasm optima 2019 one size fits oneNasm optima 2019 one size fits one
Nasm optima 2019 one size fits one
 
Honors Final Paper
Honors Final PaperHonors Final Paper
Honors Final Paper
 
grade 7 lesson Pysical education sports science (2).pdf
grade 7 lesson Pysical education sports science (2).pdfgrade 7 lesson Pysical education sports science (2).pdf
grade 7 lesson Pysical education sports science (2).pdf
 
How Much is Too Much in Gymnastics? Practical Applications of Workload Scienc...
How Much is Too Much in Gymnastics? Practical Applications of Workload Scienc...How Much is Too Much in Gymnastics? Practical Applications of Workload Scienc...
How Much is Too Much in Gymnastics? Practical Applications of Workload Scienc...
 
Need of Movement
Need of MovementNeed of Movement
Need of Movement
 
Introduction to exercise physiology
Introduction to exercise physiologyIntroduction to exercise physiology
Introduction to exercise physiology
 
Week 17 the scientific method lecture lm
Week 17   the scientific method lecture lmWeek 17   the scientific method lecture lm
Week 17 the scientific method lecture lm
 
Brain and exercise_presentation
Brain and exercise_presentationBrain and exercise_presentation
Brain and exercise_presentation
 
Let’s master the digital toolkit to harness lifelong neuroplasticity
Let’s master the digital toolkit to harness lifelong neuroplasticityLet’s master the digital toolkit to harness lifelong neuroplasticity
Let’s master the digital toolkit to harness lifelong neuroplasticity
 
Effect of select yogasanas and pranayama practices on selected physiological ...
Effect of select yogasanas and pranayama practices on selected physiological ...Effect of select yogasanas and pranayama practices on selected physiological ...
Effect of select yogasanas and pranayama practices on selected physiological ...
 
How Much is Too Much for Young Gymnasts? PDF Slides
How Much is Too Much for Young Gymnasts? PDF SlidesHow Much is Too Much for Young Gymnasts? PDF Slides
How Much is Too Much for Young Gymnasts? PDF Slides
 
Instant Recess with Melicia Whitt Glover
Instant Recess with Melicia Whitt GloverInstant Recess with Melicia Whitt Glover
Instant Recess with Melicia Whitt Glover
 
Asca flexibility dimensions
Asca flexibility dimensionsAsca flexibility dimensions
Asca flexibility dimensions
 
Mechanisms Of Therapeutic Exercise Progression - TPTA Annual Conference 2011
Mechanisms Of Therapeutic Exercise Progression - TPTA Annual Conference 2011Mechanisms Of Therapeutic Exercise Progression - TPTA Annual Conference 2011
Mechanisms Of Therapeutic Exercise Progression - TPTA Annual Conference 2011
 
Strength training for older adults: What the public health messaging should be
Strength training for older adults: What the public health messaging should beStrength training for older adults: What the public health messaging should be
Strength training for older adults: What the public health messaging should be
 
Rat Model, Physical Activity, and Eating Behavior 8 April 2014
Rat Model, Physical Activity, and Eating Behavior 8 April 2014Rat Model, Physical Activity, and Eating Behavior 8 April 2014
Rat Model, Physical Activity, and Eating Behavior 8 April 2014
 
Sedentary behavior and inactivity physiology slideshare presentation
Sedentary behavior and inactivity physiology slideshare presentationSedentary behavior and inactivity physiology slideshare presentation
Sedentary behavior and inactivity physiology slideshare presentation
 
Effect of brisk walking on flexibility of sedentary college students
Effect of brisk walking on flexibility of sedentary college studentsEffect of brisk walking on flexibility of sedentary college students
Effect of brisk walking on flexibility of sedentary college students
 

Recently uploaded

Cyberprint. Dark Pink Apt Group [EN].pdf
Cyberprint. Dark Pink Apt Group [EN].pdfCyberprint. Dark Pink Apt Group [EN].pdf
Cyberprint. Dark Pink Apt Group [EN].pdfOverkill Security
 
Cloud Frontiers: A Deep Dive into Serverless Spatial Data and FME
Cloud Frontiers:  A Deep Dive into Serverless Spatial Data and FMECloud Frontiers:  A Deep Dive into Serverless Spatial Data and FME
Cloud Frontiers: A Deep Dive into Serverless Spatial Data and FMESafe Software
 
Strategize a Smooth Tenant-to-tenant Migration and Copilot Takeoff
Strategize a Smooth Tenant-to-tenant Migration and Copilot TakeoffStrategize a Smooth Tenant-to-tenant Migration and Copilot Takeoff
Strategize a Smooth Tenant-to-tenant Migration and Copilot Takeoffsammart93
 
Rising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdf
Rising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdfRising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdf
Rising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdfOrbitshub
 
CNIC Information System with Pakdata Cf In Pakistan
CNIC Information System with Pakdata Cf In PakistanCNIC Information System with Pakdata Cf In Pakistan
CNIC Information System with Pakdata Cf In Pakistandanishmna97
 
Spring Boot vs Quarkus the ultimate battle - DevoxxUK
Spring Boot vs Quarkus the ultimate battle - DevoxxUKSpring Boot vs Quarkus the ultimate battle - DevoxxUK
Spring Boot vs Quarkus the ultimate battle - DevoxxUKJago de Vreede
 
Boost Fertility New Invention Ups Success Rates.pdf
Boost Fertility New Invention Ups Success Rates.pdfBoost Fertility New Invention Ups Success Rates.pdf
Boost Fertility New Invention Ups Success Rates.pdfsudhanshuwaghmare1
 
Cloud Frontiers: A Deep Dive into Serverless Spatial Data and FME
Cloud Frontiers:  A Deep Dive into Serverless Spatial Data and FMECloud Frontiers:  A Deep Dive into Serverless Spatial Data and FME
Cloud Frontiers: A Deep Dive into Serverless Spatial Data and FMESafe Software
 
AXA XL - Insurer Innovation Award Americas 2024
AXA XL - Insurer Innovation Award Americas 2024AXA XL - Insurer Innovation Award Americas 2024
AXA XL - Insurer Innovation Award Americas 2024The Digital Insurer
 
Apidays New York 2024 - APIs in 2030: The Risk of Technological Sleepwalk by ...
Apidays New York 2024 - APIs in 2030: The Risk of Technological Sleepwalk by ...Apidays New York 2024 - APIs in 2030: The Risk of Technological Sleepwalk by ...
Apidays New York 2024 - APIs in 2030: The Risk of Technological Sleepwalk by ...apidays
 
MINDCTI Revenue Release Quarter One 2024
MINDCTI Revenue Release Quarter One 2024MINDCTI Revenue Release Quarter One 2024
MINDCTI Revenue Release Quarter One 2024MIND CTI
 
presentation ICT roal in 21st century education
presentation ICT roal in 21st century educationpresentation ICT roal in 21st century education
presentation ICT roal in 21st century educationjfdjdjcjdnsjd
 
How to Troubleshoot Apps for the Modern Connected Worker
How to Troubleshoot Apps for the Modern Connected WorkerHow to Troubleshoot Apps for the Modern Connected Worker
How to Troubleshoot Apps for the Modern Connected WorkerThousandEyes
 
Corporate and higher education May webinar.pptx
Corporate and higher education May webinar.pptxCorporate and higher education May webinar.pptx
Corporate and higher education May webinar.pptxRustici Software
 
Finding Java's Hidden Performance Traps @ DevoxxUK 2024
Finding Java's Hidden Performance Traps @ DevoxxUK 2024Finding Java's Hidden Performance Traps @ DevoxxUK 2024
Finding Java's Hidden Performance Traps @ DevoxxUK 2024Victor Rentea
 
Architecting Cloud Native Applications
Architecting Cloud Native ApplicationsArchitecting Cloud Native Applications
Architecting Cloud Native ApplicationsWSO2
 
Exploring Multimodal Embeddings with Milvus
Exploring Multimodal Embeddings with MilvusExploring Multimodal Embeddings with Milvus
Exploring Multimodal Embeddings with MilvusZilliz
 
ICT role in 21st century education and its challenges
ICT role in 21st century education and its challengesICT role in 21st century education and its challenges
ICT role in 21st century education and its challengesrafiqahmad00786416
 
2024: Domino Containers - The Next Step. News from the Domino Container commu...
2024: Domino Containers - The Next Step. News from the Domino Container commu...2024: Domino Containers - The Next Step. News from the Domino Container commu...
2024: Domino Containers - The Next Step. News from the Domino Container commu...Martijn de Jong
 
DBX First Quarter 2024 Investor Presentation
DBX First Quarter 2024 Investor PresentationDBX First Quarter 2024 Investor Presentation
DBX First Quarter 2024 Investor PresentationDropbox
 

Recently uploaded (20)

Cyberprint. Dark Pink Apt Group [EN].pdf
Cyberprint. Dark Pink Apt Group [EN].pdfCyberprint. Dark Pink Apt Group [EN].pdf
Cyberprint. Dark Pink Apt Group [EN].pdf
 
Cloud Frontiers: A Deep Dive into Serverless Spatial Data and FME
Cloud Frontiers:  A Deep Dive into Serverless Spatial Data and FMECloud Frontiers:  A Deep Dive into Serverless Spatial Data and FME
Cloud Frontiers: A Deep Dive into Serverless Spatial Data and FME
 
Strategize a Smooth Tenant-to-tenant Migration and Copilot Takeoff
Strategize a Smooth Tenant-to-tenant Migration and Copilot TakeoffStrategize a Smooth Tenant-to-tenant Migration and Copilot Takeoff
Strategize a Smooth Tenant-to-tenant Migration and Copilot Takeoff
 
Rising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdf
Rising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdfRising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdf
Rising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdf
 
CNIC Information System with Pakdata Cf In Pakistan
CNIC Information System with Pakdata Cf In PakistanCNIC Information System with Pakdata Cf In Pakistan
CNIC Information System with Pakdata Cf In Pakistan
 
Spring Boot vs Quarkus the ultimate battle - DevoxxUK
Spring Boot vs Quarkus the ultimate battle - DevoxxUKSpring Boot vs Quarkus the ultimate battle - DevoxxUK
Spring Boot vs Quarkus the ultimate battle - DevoxxUK
 
Boost Fertility New Invention Ups Success Rates.pdf
Boost Fertility New Invention Ups Success Rates.pdfBoost Fertility New Invention Ups Success Rates.pdf
Boost Fertility New Invention Ups Success Rates.pdf
 
Cloud Frontiers: A Deep Dive into Serverless Spatial Data and FME
Cloud Frontiers:  A Deep Dive into Serverless Spatial Data and FMECloud Frontiers:  A Deep Dive into Serverless Spatial Data and FME
Cloud Frontiers: A Deep Dive into Serverless Spatial Data and FME
 
AXA XL - Insurer Innovation Award Americas 2024
AXA XL - Insurer Innovation Award Americas 2024AXA XL - Insurer Innovation Award Americas 2024
AXA XL - Insurer Innovation Award Americas 2024
 
Apidays New York 2024 - APIs in 2030: The Risk of Technological Sleepwalk by ...
Apidays New York 2024 - APIs in 2030: The Risk of Technological Sleepwalk by ...Apidays New York 2024 - APIs in 2030: The Risk of Technological Sleepwalk by ...
Apidays New York 2024 - APIs in 2030: The Risk of Technological Sleepwalk by ...
 
MINDCTI Revenue Release Quarter One 2024
MINDCTI Revenue Release Quarter One 2024MINDCTI Revenue Release Quarter One 2024
MINDCTI Revenue Release Quarter One 2024
 
presentation ICT roal in 21st century education
presentation ICT roal in 21st century educationpresentation ICT roal in 21st century education
presentation ICT roal in 21st century education
 
How to Troubleshoot Apps for the Modern Connected Worker
How to Troubleshoot Apps for the Modern Connected WorkerHow to Troubleshoot Apps for the Modern Connected Worker
How to Troubleshoot Apps for the Modern Connected Worker
 
Corporate and higher education May webinar.pptx
Corporate and higher education May webinar.pptxCorporate and higher education May webinar.pptx
Corporate and higher education May webinar.pptx
 
Finding Java's Hidden Performance Traps @ DevoxxUK 2024
Finding Java's Hidden Performance Traps @ DevoxxUK 2024Finding Java's Hidden Performance Traps @ DevoxxUK 2024
Finding Java's Hidden Performance Traps @ DevoxxUK 2024
 
Architecting Cloud Native Applications
Architecting Cloud Native ApplicationsArchitecting Cloud Native Applications
Architecting Cloud Native Applications
 
Exploring Multimodal Embeddings with Milvus
Exploring Multimodal Embeddings with MilvusExploring Multimodal Embeddings with Milvus
Exploring Multimodal Embeddings with Milvus
 
ICT role in 21st century education and its challenges
ICT role in 21st century education and its challengesICT role in 21st century education and its challenges
ICT role in 21st century education and its challenges
 
2024: Domino Containers - The Next Step. News from the Domino Container commu...
2024: Domino Containers - The Next Step. News from the Domino Container commu...2024: Domino Containers - The Next Step. News from the Domino Container commu...
2024: Domino Containers - The Next Step. News from the Domino Container commu...
 
DBX First Quarter 2024 Investor Presentation
DBX First Quarter 2024 Investor PresentationDBX First Quarter 2024 Investor Presentation
DBX First Quarter 2024 Investor Presentation
 

Science and performance

  • 1. Steve Magness University of Houston stevemagness@gmail.com
  • 2. Old School- Anti Science Science is God Both are wrong
  • 3.  This presentation will be different. ◦ The first part will be philosophical ◦ The 2nd part will be fun stuff- real world examples and application ◦ The last part will be controversial
  • 4.  Evidence based?  only 13% of all treatments used by doctors have good evidence  an additional 21% of treatments that are “likely” beneficial.  What about the other 66%?  Is Science Bad? No, but…  You have to understand it‟s limitations in order to know how to use it.
  • 5.  Science conforms to the individual:  Average vs. Individual  Research focuses on the average.  Responder vs. non responder in coach speak is actually an issue of applying the correct stimulus  Do we really expect 4mi tempo at X pace to work for everyone?  Timmons et al.(2011) put it best when talking about the non-responder phenomenon: “It is also an observation that is largely ignored by the majority of researchers interested in the health benefits of exercise training, presumably because the focus has been on the “average” health benefits within a population and the desire to have a simple health promotion message.”
  • 6. ◦ Measurement  We overemphasize the importance of what we can measure.  Science evolves based on what we can measure at the time.  VO2max  Vollaard et al. (2009) “Moreover, we demonstrate that VO2max and aerobic performance associate with distinct and separate physiological and biochemical endpoints, suggesting that proposed models for the determinants of endurance performance may need to be revisited (pg. 1483)”.
  • 7. Researchers= No change Coaches=WHY the individual differences?  (i.e. If I‟m that guy at 6% increase I sure think it works!) J Appl Physiol. 2011 Oct 27. [Epub ahead of print] "Live high - train low" using normobaric hypoxia: A double-blinded, placebo- controlled study.
  • 8.  The isolation approach:  Scientist- break It down to isolate a variable  X effects Y and Y is RELATED to performance so it should work…  Coach- Global approach  X effects A,B,C,D, etc. How everything interacts is more important  All sorts of other crap (population, equipment, study length, long term vs. short term, etc.)
  • 9. 1. Deciding whether something is useful:  Stool test  1.Practical- Does it work in the “real world.”  2. Research- Is there scientific research on it and does it confirm that it works?  3. Theory- Is there a legitimate, non-pseudoscientific, theory for why it might work?
  • 10. 2. Using scientific Knowledge to formulate Real world ideas  Use knowledge of HOW body works and learn how to apply that knowledge.
  • 11.
  • 12.  Lactate Curve ◦ How? ◦ What it means? ◦ Missing variable- MAX Lactate 0 1 2 3 4 5 6 7 8 9 4:264:334:404:484:555:025:095:165:245:31 Lactate(mmol) Mile pace Lactate Levels 1st test 2nd test 3rd test ◦ Test 2- Sprint+ aerobic ◦ Test 3- overdid speed side
  • 13. 0 1 2 3 4 5 6 7 8 9 10 16.5 17 17.5 18 18.5 19 19.5 1/5/2012 test 1 MAX Test 1: 61.8-13.7 Test 2: 59.8- 14.2
  • 15.  Data from Renato Canova 0 2 4 6 8 10 12 14 16 18 2000 4000 6000 8000 10000 finish Research Elites STEADY STATE!!
  • 16.  Passive versus Active ◦ Stretch Reflexes… ◦ Inertial forces  What it looks like versus what is actually going on are different. Casio Exilim (High speed cameras-$150)
  • 17. Speed R leg GC L leg GC Flight Time (R to L or L to R) Flight/G C time ratio 2nd 200 28.3ish 0.164 4th 200 28ish 0.154 5th 200 28 0.153 0.15 0.155 1.03333 7th 200 27.8 0.157 0.153 0.141 0.89808 8th 200 28.2 0.158 0.15 0.164 1.03797
  • 18.  Using Smart Phones ◦ Data base ◦ Rate:  Overall feeling/RPE  Workout rating  “Pop” in legs  Injuries/Soreness ◦ Simple Reaction Test  10 test reaction test (track avg.)  Looks at neural fatigue somewhat ◦ Look for trends and correlate to training logs
  • 19.  Enhancing your decision making skills  Creating and applying models to help decision making ◦ Simple fatigue models to determine workouts  Simple fatigue models  Muscle Fiber theory and application to kick development
  • 20.  Fasted Runs ◦ Theory-low glycogen is signal for adaptation. Shifts fuel usage towards more fat ◦ Research- Drust et al.(2009), Yeo et al. (2008) ◦ Practical-Lydiard, Cerutty, Van Aaken,Kenyans, Canadians (!?)  Practical- start with running before breakfast for 30min, slowly increase up to close to 2hrs for marathoners. 1-2x a week depending on goal/time. EASY training after (RECOVER)  Adapting the gut ◦ Can increase the amount of Carbohydrate our gut can process=enhanced marathon performance with lower GI stress ◦ Practical experience- eat dinner, go run- after a week you‟ll be fine with no GI problems. Drust B, Morton JP. Promoting Endurance Training Adaptations with Nutritional Interventions: The Potential Benefits of “Low Carbohydrate” Training. Kinesiology 2009; 41: 19–24.
  • 21.  Knowledge: ◦ Research shows knowledge of external feedback affects performance ◦ Real world experience shows people occasionally “rebound” after looking like death in a race because they realize they are close to finish…  Real World Solution ◦ Take it all away. ◦ Blind Feedback workouts- do workouts without knowledge of how long the rep is, what exact pace is, when surges will come,etc. ◦ Switches focus to training on dealing with internal cues/feedback and improves psychological drive during uncertainty.
  • 22.  Knowledge: ◦ “The greater the ability of the athlete to oppose fatigue (by maintaining strength levels), the smaller the drop in speed and consequently the better the performance.” Miguel et al. 2004 ◦ 400m race- (Numella et al. 1992,1994)  Force production drops 16% after 300m and 25% after 400m.  Increase in muscle activity (measured by EMG) to compensate for failure of muscle fibers that were doing the work.  Kick development: ◦ 1.Increase maximum fibers recruited  Flat Sprints, Hill Sprints, Power work ◦ 2. Improve ability to use for prolonged time  Circuits, alternations, hills+flats ◦ 3. Learn to recruit them under high acidity  fast workouts with bounding/hills  2x500(200 at faster than 800 pace, 100m bound at near mile pace, 200m kick in) full rest between  Works by 1st part Increase lactate/fatigue, 2nd part increases fibers recruited, last part teaches you to use those fibers while fatigued  Circuits with fast speed running, max intensity bounding and exercises  3-4x400m of 25sprint/25 cruise Miguel, P. J. P. & Reis, V. M. M. (2004). Speed strength endurance and 400m performance. New Studies in Athletics
  • 23.  Signal pathway interactions ◦ Gives you the dose, the timing, and the interaction Adaptation Process RBC example Altitude Decrease O2 levels Hif-1a EPO RBC increase
  • 24. Messenger Signaling Pathways initiated Functional Results Mechanical Stretch- frequency and intensity CaMK, MAPK and IGF pathways Hypertrophy, fast to slow fiber type conversions, Changes in Calcium levels in the cell CaMK, MAPK, protein kinase C Hypertrophy, slow twitch fiber type conversion, mitochondria NAD: NADH ratio Low muscle glycogen AMPK and MAPK Increased mitochondria ATP:AMP ratio AMPK Increased mitochondria Decreased blood Oxygen levels HIF-1 Increased EPO and Red Blood cells PI3-k and Akt mTOR Muscle Hypertrophy MAPK=Mitogen activated protein kinase IGF-Insulin Like Growth Factor PI3-k= Phosphatidylinositol 3-kinase CaMK=Calcium/Calmodulin pathway Why care? •Interactions matter: •AMPK inhibits mTOR •Do endurance work AFTER strength and you inhibit hypertrophy •Knowledge of stimulus •Explains why training does what: •AMPK and CaMK can both Increase mitochondria. •AMPK= activated through endurance. •CaMK= activated through intense intervals.
  • 25. Laursen, P. Training for Intense exercise performance: High volume or high intensity. 2009
  • 26.
  • 27. 1. Remember the Brain? ◦ Most new research/ideas revolve on the change in mindset. ◦ The brain is a smart controller, synthesizing information, making calculations based on complex algorithm, and dictating what happens. ◦ Input/Feedback is key. 2. Body is well designed. ◦ Timing matters, and knowing when to manipulate matters.
  • 28. Baron et al.(2012). The role of emotions on pacing strategies and performance in middle and long duration sport events
  • 29. •Feedback •Block with drugs and pacing is erratic (out hard and die) •Deception •Castle et al.- exercise in heat is effected by what thermometer reads •Ness and Patton- changed labels of weights after 5 weeks, athletes lifted 20lb more for their max •Knowing vs. not knowing (distance, reps, pace, etc.) •Manipulating psychological drive •dissociative cognitive strategy •TRAINING- Training improves our ability to assimilate feedback and use it better in regards to riding that edge/pacing. •Become an Expert!
  • 30. “„inner dialogue‟ that occurs during exercise may be the „competition‟ between psychological drives and physiological homeostatic control mechanisms” St. Clair Gibson,2013 Psychological Drive Maintaining Homeostasis
  • 31. ◦ Antioxidants  Free radicals activate AMPK which increase Mitochondria ◦ Ice baths  Blocks inflammation  Reduces Recovery ◦ Ibuprofen  Can block satellite cell  Reduce Recovery Antioxidant Supplementation during Exercise Training: Beneficial or Detrimental? Sports MedicineV olume 41 - Issue 12 - pp 1043-1069
  • 32.  Anti-inflammatory ◦ At what point during the inflammatory cycle do you impede?  Refueling ◦ Low Glycogen needed for certain types of adaptations  Hydration ◦ In adapting to high heat/humidity, research shows need some dehydration to get beneficial effects  Supplement intake ◦ Hepcidin rises post workout for ~3-4hrs…limits Iron absorption  Taking iron pill in that window…decreases absorption…
  • 33.  Don‟t over recover.  Periodize recovery so you use it when you need it ◦ Base and Pre competition phase  Damage is good  Selectively use recovery modalities when athlete is on “edge” ◦ Peaking  Slight increase in recovery modalities because emphasis shifts from training to racing
  • 34.  Testosterone and muscle growth ◦ Elevated systemic hormones does not effect muscle hypertrophy  Chronically supraphysiological levels (i.e. drugs) aids muscle growth, not what we get in regular acute exercise.  Compression Socks ◦ Blood Flow not the issue ◦ Modulates muscle “tuning” (think vibrations)  Stretching  Hands over head ◦ Let your kids fall over Elevations in ostensibly anabolic hormones with resistance exercise enhance neither training2 induced muscle hypertrophy nor strength of the elbow flexors. J Appl Physiol (
  • 35.  Cushioning and Pronation= Broken Paradigm  Running surface- ◦ “hard” surfaces not evil if they‟re accustomed to it.  Individualization ◦ Feel most important
  • 36. Pronatio n-Left Right Footstrik e Orthotics? Initial Max change Initial Max Change Degree GC Flight Time Footstrike Lunar Fly NO 183 176 7 172 182 10 93.6 0.214 0.114whole Lunar Fly YES 182 175 7 176 185 9 Katanas No 184 175 9 175 185 10 92 0.195 0.128midfoot Lunar Racers No 184 175 9 173 186 13 93.4 0.2 0.123whole Lunar Racers YES 185 176 9 174 185 11 98 0.209 0.119Heel Pegasus No 181 173 8 178 188 10 100.7 0.214 0.104Heel Pegasus yes 185 176 9 177 188 11 101.6 0.214 0.109Heel Vomeros Yes 184 174 10 174 186 12 96.5 0.204 0.114heel Barefoot No 0 0 93.8 0.195 0.119forefoot 0 0 *Footstrike degree=90= foot directly under knee
  • 37.  Use Science, don‟t be married to it.  Stimulus-> Adaptation ◦ What adaptation are you looking for?  Lab vs. Real World  Average vs. Individuals  Know what you‟re testing for and what the measurement means.