The document provides information on ACSM metabolic equations used to calculate oxygen consumption and energy expenditure during exercise. It includes the specific equations for walking, running, stepping, and various modes of ergometry. Sample calculations are provided to demonstrate how to use the equations to determine variables like VO2, calorie expenditure, target heart rate, and more.
Tone is a normal characteristic of muscle physiology and defined as “ normal degree of vigour and tension: in muscle, the resistance to passive elongation or stretch”. Increase in tone known as hypertonocity. The problem like C.P and stroke are basically suffer hypertonicity. The orthoses help to reduce the tone is known as tone reducing orthoses. These orthosis are follows the principles of NDT mechanism and neurophysiology, so its also known as neurophysiological AFO.
A course Review from James Moore's Sporting Hip and Groin Course - February 2016 (Highly Recommend!). Following my attendance of the course, i performed my own research on 'The Sporting Hip and Groin' and incorporated this into the course review which I presented to the Sports Science and Medicine staff at Wigan Athletic FC. Further references available upon request.
Corrective exercises in the treatment of scoliosisNikos Karavidas
Physiotherapeutic Scoliosis Specific Exercises (PSSE) can be used as an exclusive treatment for mild scoliosis and in combination with bracing for greater curves. There are 3 RCT's and 1 Systematic review with meta-analysis, which prove the effectiveness of the PSSE (Level of Evidence I)
Tone is a normal characteristic of muscle physiology and defined as “ normal degree of vigour and tension: in muscle, the resistance to passive elongation or stretch”. Increase in tone known as hypertonocity. The problem like C.P and stroke are basically suffer hypertonicity. The orthoses help to reduce the tone is known as tone reducing orthoses. These orthosis are follows the principles of NDT mechanism and neurophysiology, so its also known as neurophysiological AFO.
A course Review from James Moore's Sporting Hip and Groin Course - February 2016 (Highly Recommend!). Following my attendance of the course, i performed my own research on 'The Sporting Hip and Groin' and incorporated this into the course review which I presented to the Sports Science and Medicine staff at Wigan Athletic FC. Further references available upon request.
Corrective exercises in the treatment of scoliosisNikos Karavidas
Physiotherapeutic Scoliosis Specific Exercises (PSSE) can be used as an exclusive treatment for mild scoliosis and in combination with bracing for greater curves. There are 3 RCT's and 1 Systematic review with meta-analysis, which prove the effectiveness of the PSSE (Level of Evidence I)
A complete description of the lower limb orthosis is available in the following presentation with an in depth understanding of the same.It covers the ankle foot orthosis,Knee orthosis the knee ankle foot orthosis and hip orthosis.
A complete description of the lower limb orthosis is available in the following presentation with an in depth understanding of the same.It covers the ankle foot orthosis,Knee orthosis the knee ankle foot orthosis and hip orthosis.
Measuring Energy Balance in Mice from VO2/VCO2, Food Intake and Activity DataInsideScientific
Metabolic research continues to have an increased need for simultaneous multi-parameter measurements of Respiratory Exchange Ratio (RER), animal activity, and food intake (caloric consumption) to properly asses compounds, proteins, and genes on how they influence metabolism. But temporal alignment of this data into meaningful conclusions can have a steep learning curve for the non-initiated, and selecting appropriate options for such a complicated system can be over whelming. This webinar aims to discuss the essential elements and how they are to be applied.
In this webinar sponsored by Columbus Instruments, Chris Adams provides an overview of essential parameters for studying energy expenditure in laboratory rodents. He reviews gas exchange using open circuit indirect calorimetry to measure VO2, VCO2, RER and energy expenditure; food/water intake using direct mass measurement for accumulative and/or bout monitoring for controlling caloric intake and for identifying diet preference; and activity using an IR photo-cell array and/or running wheel rotation for scoring locomotion, stereotypic behavior (grooming/scratching), resting behavior and wheel running behavior.
In addtion, Dr. Marta Fiorotto presents quantitative data acquired in her lab such as energy intake and energy expenditure while highlighting qualitative measurements such as spontaneous cage activity, voluntary activity and dietary-induced thermogenesis. She discusses the value of "secondary data" as well with a focus on RER and behaviors such as eating patterns, sleeping and exploratory drive. Finally, Dr. Fiorotto highlights key considerations for proper experimental design and to ensure data validity including habituation, animal-to-animal individuality, diets, environmental factors, instrument setup, timing of measurement and normalization protocols.
10 Badass Entrepreneurs & Creatives Tell How Fitness is Part of their FormulaAnne Reuss
The most successful people know they need to push themselves mentally and physically. Want to become more tenacious? See what these people had to say about practicing fitness.
Entrenar de manera intensa, breve e infrecuente es el fundamento del sistema Heavy Duty; para lograr la hipertrofia muscular sin causar lesiones es fundamental estructurar las rutinas según las sugerencias de Mentzer.
Al pasar de otro método de entrenamiento al Heavy Duty es importante descansar dos semanas antes de comenzar con las rutinas con técnicas de alta intensidad, y si somos principiantes o hace tiempo no entrenamos, será necesario comenzar con una rutina de introducción.
Old school strength, bodybuilding and physical training quotes from Mythslayer. It is important to recognise that much of our training knowledge comes from the old masters of decades ago.
These lecture slides, by Dr Sidra Arshad, offer a quick overview of the physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar lead (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
6. Describe the flow of current around the heart during the cardiac cycle
7. Discuss the placement and polarity of the leads of electrocardiograph
8. Describe the normal electrocardiograms recorded from the limb leads and explain the physiological basis of the different records that are obtained
9. Define mean electrical vector (axis) of the heart and give the normal range
10. Define the mean QRS vector
11. Describe the axes of leads (hexagonal reference system)
12. Comprehend the vectorial analysis of the normal ECG
13. Determine the mean electrical axis of the ventricular QRS and appreciate the mean axis deviation
14. Explain the concepts of current of injury, J point, and their significance
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. Chapter 3, Cardiology Explained, https://www.ncbi.nlm.nih.gov/books/NBK2214/
7. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
Basavarajeeyam is an important text for ayurvedic physician belonging to andhra pradehs. It is a popular compendium in various parts of our country as well as in andhra pradesh. The content of the text was presented in sanskrit and telugu language (Bilingual). One of the most famous book in ayurvedic pharmaceutics and therapeutics. This book contains 25 chapters called as prakaranas. Many rasaoushadis were explained, pioneer of dhatu druti, nadi pareeksha, mutra pareeksha etc. Belongs to the period of 15-16 century. New diseases like upadamsha, phiranga rogas are explained.
Adv. biopharm. APPLICATION OF PHARMACOKINETICS : TARGETED DRUG DELIVERY SYSTEMSAkankshaAshtankar
MIP 201T & MPH 202T
ADVANCED BIOPHARMACEUTICS & PHARMACOKINETICS : UNIT 5
APPLICATION OF PHARMACOKINETICS : TARGETED DRUG DELIVERY SYSTEMS By - AKANKSHA ASHTANKAR
New Drug Discovery and Development .....NEHA GUPTA
The "New Drug Discovery and Development" process involves the identification, design, testing, and manufacturing of novel pharmaceutical compounds with the aim of introducing new and improved treatments for various medical conditions. This comprehensive endeavor encompasses various stages, including target identification, preclinical studies, clinical trials, regulatory approval, and post-market surveillance. It involves multidisciplinary collaboration among scientists, researchers, clinicians, regulatory experts, and pharmaceutical companies to bring innovative therapies to market and address unmet medical needs.
Tom Selleck Health: A Comprehensive Look at the Iconic Actor’s Wellness Journeygreendigital
Tom Selleck, an enduring figure in Hollywood. has captivated audiences for decades with his rugged charm, iconic moustache. and memorable roles in television and film. From his breakout role as Thomas Magnum in Magnum P.I. to his current portrayal of Frank Reagan in Blue Bloods. Selleck's career has spanned over 50 years. But beyond his professional achievements. fans have often been curious about Tom Selleck Health. especially as he has aged in the public eye.
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Introduction
Many have been interested in Tom Selleck health. not only because of his enduring presence on screen but also because of the challenges. and lifestyle choices he has faced and made over the years. This article delves into the various aspects of Tom Selleck health. exploring his fitness regimen, diet, mental health. and the challenges he has encountered as he ages. We'll look at how he maintains his well-being. the health issues he has faced, and his approach to ageing .
Early Life and Career
Childhood and Athletic Beginnings
Tom Selleck was born on January 29, 1945, in Detroit, Michigan, and grew up in Sherman Oaks, California. From an early age, he was involved in sports, particularly basketball. which played a significant role in his physical development. His athletic pursuits continued into college. where he attended the University of Southern California (USC) on a basketball scholarship. This early involvement in sports laid a strong foundation for his physical health and disciplined lifestyle.
Transition to Acting
Selleck's transition from an athlete to an actor came with its physical demands. His first significant role in "Magnum P.I." required him to perform various stunts and maintain a fit appearance. This role, which he played from 1980 to 1988. necessitated a rigorous fitness routine to meet the show's demands. setting the stage for his long-term commitment to health and wellness.
Fitness Regimen
Workout Routine
Tom Selleck health and fitness regimen has evolved. adapting to his changing roles and age. During his "Magnum, P.I." days. Selleck's workouts were intense and focused on building and maintaining muscle mass. His routine included weightlifting, cardiovascular exercises. and specific training for the stunts he performed on the show.
Selleck adjusted his fitness routine as he aged to suit his body's needs. Today, his workouts focus on maintaining flexibility, strength, and cardiovascular health. He incorporates low-impact exercises such as swimming, walking, and light weightlifting. This balanced approach helps him stay fit without putting undue strain on his joints and muscles.
Importance of Flexibility and Mobility
In recent years, Selleck has emphasized the importance of flexibility and mobility in his fitness regimen. Understanding the natural decline in muscle mass and joint flexibility with age. he includes stretching and yoga in his routine. These practices help prevent injuries, improve posture, and maintain mobilit
Pharma Pcd Franchise in Jharkhand - Yodley Lifesciences
ACSM Metabolic Equations
1. 1
ACSM Metabolic Equations
(HPRED 1410, Dr Bailey, Appendix D, Guidelines)
ACSM metabolic equations are typically used for two purposes:
1. To calculate oxygen consumption and from this, the energy expenditure
of a given exercise.
2. To calculate the target workload for a client on the specific mode used.
Note that each equation will have the following components:
VO2 = horizontal component + vertical component + resting component
Walking
Walking: VO2 = H + V + R
Walking: VO2 = 0.1(speed) + 1.8 (speed) (fractional grade) + 3.5
0.1 ml x kg-1
x min-1
= O2 cost of horizontal movement
1.8 ml x kg-1
x min-1
= O2 cost of vertical ascent
Speed = speed in m x min-1
Running
Running: VO2 = H + V + R
Running: VO2 = 0.2 (speed) + 0.9 (speed)(fractional grade) + 3.5
0.2 ml x kg-1
x min-1
= O2 cost of horizontal motion
0.9 ml x kg-1
x min-1
= O2 cost of vertical ascent cost
2. 2
Stepping
Stepping: VO2 = H + V + R
Stepping: VO2 = 0.2 (stepping rate) +1.33 x 1.8 (step height)(step freq) +3.5
= 0.2 (stepping rate) + 2.4 (step height)(step freq) +3.5
1.8 ml x kg-1
x min-1
= O2 cost of vertical ascent
1.33 = O2 cost of stepping down (vertical descent)
(1.33 includes the positive component of stepping up (1.0), and the negative
component of stepping down. (0.3)
step height = step height in meters, step freq = stepping frequency in min-1
Leg and Arm Ergometry
Note that there is no horizontal or vertical component here. All we see is the
resistive component (V) from the ergometer.
Leg Ergometry
Leg Ergometry: VO2 = V (resistive) + R
Note: 1. There is no horizontal component in leg ergometry
2. The vertical component is actually a resistive component.
Leg Ergometry: VO2 = (10.8 x W x M-1
) + 7
Use (mathematically equivalent); VO2 = 1.8 (work rate)/body mass + 7
1.8 ml x kg-1
x min-1
= cost of cycling against external load
3.5 ml x kg-1
x min-1
= cost of unloaded cycling above and
beyond resting metabolism, so “7” is 3.5 + 3.5.
W = watts, M = mass in Kgs
3. 3
Arm Ergometry
Arm Ergometry: VO2 = V (resistive) + R
Arm Ergometry: VO2 = (18 x W x M-1
) + 3.5
Use (mathematically equivalent); VO2 = 3 (work rate)/body mass + 3.5
Note: 1. There is no horizontal component in leg ergometry
2. The vertical component is actually a resistive component.
3. In arm ergometry, arm muscle mass is so small that there is
no term for unloaded cyling. Hence, no “7” is seen.
Also needed for arm and leg ergometry:
Power (Kg x m x min-1
) = (Kg setting)(D)(pedaling cadence in rpm)
D = 6 meters for Monark
= 3 meters for Tunturi
= 2.4 for Monark arm ergometer
Stepwise Approach to Metabolic Calculation
1. Conversion to appropriate units and knowledge of common
equivalents.
A. Convert all weights from pounds (lbs) to kilgrams.
* Pounds/2.2 = kilograms
B. Convert speed from miles per hour (m/hr) to meters per minute
(m/min).
* miles/hr x 26.8 = meters/minute
* (also useful; 60/(min/mile) = miles per hour
C. Common equivalents
* (Caloric expenditure in kcals x min-1
)/5 = VO2 in L x min-1
* Liters O2 x 5 kcals/liter O2 = kcals
* 1 pound of fat = 3,500 kcals
* METs x 3.5 m x kg-1
x min-1
= VO2 in ml x kg-1
x min-1
* Gross VO2 in ml x kg-1
x min-1
/ 3.5 = METs
* Power in watts x 6 = workload in kg x m x min-1
* (kgm/min)/6 = watts
4. 4
2. Transform VO2 into the most appropriate units.
A. If weight bearing; walking, running, stepping, use ml x kg-1
x min-1
B. If cycling or arm, use ml/min
C. If caloric expenditure needed, convert from ml x kg-1
x min-1
to
liters/minute
3. Choose the proper equation for gross VO2:
Walking: VO2 = 0.1(speed) + 1.8 (speed) (fractional grade) + 3.5
Running: VO2 = 0.2 (speed) + 0.9 (speed)(fractional grade) + 3.5
Stepping: VO2 = 0.2 (step rate) +1.33 x 1.8 (step height)(step rate) +3.5
(step height in meters, where 1 inch =.0254 m)
Leg Ergometry: VO2 = 1.8 (work rate)/body mass + 7
Arm Ergometry VO2 = 3 (work rate)/body mass + 3.5
Power (Kg x m x min-1
) = (Kg setting)(D)(pedaling cadence in rpm)
Example from ACSM Guidelines
1. 30 year old man: He wants to walk at 3.5 mph
* 180 lbs
* RHR of 60
* MHR of 190
* VO2 max 48 ml/kg/min.. You want him at 70 % of his VO2 R
A. What is his minimum training heart rate by the Karvonen method?
THR = (.70)(190 - 60) + 60
THR = 91 + 60 = 151 beats/min
B. What is his target VO2?
VO2R = 48 ml/kg/min – 3.5 ml/kg/min = 44.5 = net VO2
= .70 x 44.5 = 31.2 ml/kg/min
5. 5
C. How steep should the treadmill be if he is walking at his preferred
3.5 mph?
VO2 = 0.1 (speed) + 1.8 (speed)(fractional grade) + 3.5 ml/kg/min
31.2 = 0.1 (93.8) + 1.8 (93.8) (frac grade) + 3.5 ml/kg/min
27.7 = 0.1 (93.8) + 1.8 (93.8)(frac grade)
27.7 = 9.38 + 168.8 (frac grade)
18.3 = 168.8 (frac grade)
fractional grade = 10.8 %
D. What is his target work rate on the Monark bike?
His body mass = 180 lbs/2.2 = 81.8 kg
VO2 = 7.0 +1.8 (work rate)/body mass
VO2 = 7.0 +1.8 (work rate)/81.8
31.2 = 7.0 + 1.8 (work rate)/81.8
24.2 = 1.8 (work rate)/81.8
1980 = 1.8 (work rate)
work rate = 1100 kg x m-1
x min-1
E. If he wants to pedal at 60 rpm on a Monark cycle, what resistance
setting should be used.
Power (Kg x m x min-1
) = (Kg setting)(D)(pedaling cadence in rpm)
Work rate = (resistance setting)(D)(pedal cadence)
1100 = (resistance setting)(6)(60)
1100 = (resistance setting)360
Resistance setting = 3.05 kg
F. What is the caloric expenditure during 30 minutes of exercise?
Net VO2 = 31.2 ml/kg/min
(VO2 in ml/kg/min)(body mass)/1000 = VO2 L/min
(31.2)(81.8)/1000 = 2.55 L/min
2.55 L/min x 5 = 12.8 kcal/min
12.8 kcal/min x 30 = 383 kcals
6. 6
Text examples, page 311, Guidelines
HPRED 1410, Feb 23, 2004
1. A man weighing 176 lbs runs a pace of 9 minutes per mile outdoors, on
level ground. What is his estimated gross VO2 ?
Conversion to appropriate units and knowledge of common
equivalents.
S = 9 minutes/mile, to convert to m x min-1
,
1. mph = 60 min/mile = mph
= 60/9 = 6.66
2. m x min-1 = 6.66 x 26.8 = 178.5
Choose the proper equation for gross VO2: Running:
VO2 = 0.2 (speed) + 0.9 (speed)(fractional grade) + 3.5
VO2 = (0.2 x 178.5 m x min-1
) + 0 + 3.5
VO2 = 35.7 + 0 + 3.5 = 39.2 ml x kg-1
x min -1
2. To match this exercise intensity (from above) on a Tunturi cycle
ergometer, what setting would you use at a pedal rate of 60 rpm?
Conversion to appropriate units and knowledge of common
equivalents.
176lbs/2.2 = 80 kgs
Choose the proper equation for gross VO2: Leg Ergometry:
VO2 = 1.8 (work rate)/mass + 7
39.2 ml x kg-1
x min -1
= (1.8 x W)/80 + 7
32.2 = 1.8W/80
1431 kg m min = work rate
7. 7
Power (Kg x m x min-1
) = (Kg setting)(D)(pedaling cadence in rpm)
1431 = Kg (3)(60)
Kg = 7.95
3. If this same man exercised at this intensity 5 times a week for 30
minutes each session, how long would it take him to lose 12 pounds?
(20) p. 311 top
Net VO2 = 39.2 -3.5 = 35.7
Liter of oxygen used =
35.7 ml x kg-1
x min -1
x 80 kg/1000 = 2.856 L/min O2
Kcals used per minute =
2.856 L/min x 5 kcals/Liter O2 = 14.28 kcals
Kcals per session = 14.28 kcals/min x 30 minutes = 428.4 kcals
Kcals/week = 5 times/wk x 428.4 = 2142 kcals/wk
Total Kcals to lose = 12 lbs x 3500 kcals/lb = 42000 kcals
Weeks to lose it = 42000kcals/2142 kcals/week = 19.6 weeks
4. For a desired training intensity of 75 % of the VO2res, at what heart rate
should a 45 year old woman exercise ? Her resting heart rate is 70 beats
a minute.
MHR = 220 - 45 = 175
HRR = 175- 70 = 105
.75 x 105 = 78.75
78.75 + 70 = 149
5. A 198 pound cardiac patient wishes to use an arm ergometer for part of
his rehabilitation program. He works at a power output of 300
kgxmxmin for 15 minutes and then at 450 kgxmxmin for 15 minutes.
What is his average net VO2 (in ml x kg-1
x min -1
) over this session?
198/2.2 = 90 kgs
8. 8
Arm Ergometry VO2 = 3 (work rate)/body mass + 3.5
First 15 minutes; VO2 = 3 (300)/90 + 3.5
Gross VO2 = 900/90 +3.5 = 13.5 ml x kg-1
x min -1
Net VO2 = 13.5 –3.5 = 10 ml x kg-1
x min -1
15 minutes x 10.0 = 150.0 ml x kg-1
x min -1
Second 15 minutes: VO2 = 3 (work rate)/body mass + 3.5
Gross VO2 = 3(450)/90 + 3.5 = 18.5 ml x kg-1
x min -1
Net VO2 = 18.5 – 3.5 = 15 ml x kg-1
x min -1
15 minutes x 15.0 = 225.0 ml x kg-1
x min -1
Average net= (150 + 225)/30 = 12.5 ml x kg-1
x min -1
6. If an individual reduces his or her dietary intake by 1750 kcal per week,
how much weight (in lbs) would he or she lose in 6 months (26 weeks)?
Weight lost per week = 1750/3500 = .5 pounds
26 x .5 = 13 pounds
7. If an 18 year old girl steps up and down on a 12 inch step at a rate of 20
steps (complete up and down cycles) per minute, what would her gross
VO2 be (in ml x kg-1
x min -1
) ?
Stepping:
Gross VO2 = 0.2 (step rate) +1.33 x 1.8 (step height)(step rate) +3.5
= 0.2(20) + 1.33 x 1.8 (12)(20) + 3.5
1 inch = 0.0254 meters
step height in meters = 12 x .0254 = .3048
9. 9
VO2 = 0.2(20) + 1.33 x 1.8 (.3048)(20) + 3.5
= 4 + 14.59 + 3.5 = 22.09 ml x kg-1
x min -1
8. A 71-year-old man weighing 180 pounds walks on a motor-driven
treadmill at 3.5 mph and a 15 % grade. What is his gross MET level?
Walking: VO2 = 0.1(speed) + 1.8 (speed) (fractional grade) + 3.5
3.5 mph x 26.8 = 93.8 m/min
VO2 = 0.1(speed) + 1.8 (speed) (fractional grade) + 3.5
= 0.1(93.8) + 1.8(93.8)(.15) + 3.5
= 9.38 + 25.33 + 3.5 = 38.2 ml x kg-1
x min -1
Gross MET level = 38.2/3.5 = 10.9 METs
10. 10
Case Studies for HPRED 1410
Case Study 1:
70 kg man uses 2 liters of oxygen in one minute.
A. How many calories did he burn?
B. What was his exercise in METs?
Case Study 2: A man with the following information will burn how many
kcals each exercise session while running?
Treadmill at 1 % grade
Speed = 6.5 mph
Time = 30 minutes
5 times a week
Body weight = 175 pounds
= 79.5 kg
Case Study 3: If the same man walks for 30 minutes per session, how many
calories per session will he burn?
Treadmill at 4 % grade
Speed = 4.4 mph
Time = 30 minutes
5 times a week
Body weight = 175 pounds
Case Study 4: 38 year old male, resting heart rate = 60, body weight of 170
pounds, percent body fat = 18%
1. Calculate his training heart rate range from 60 to 75 % of the heart rate
reserve.
2. How many weeks would it take him to reduce his body weight to 12 %
body fat if he adhered to a proper program?
11. 11
Case Study 5: A 25 year old woman who weighs 130 pounds has a
predicted VO2 max of 40 ml x kg-1
x min -1
. You decide that you want her to
exercise (run) at 60 % of her VO2 R.
1. How fast should you set the treadmill speed in miles per hour assuming
zero percent grade?
2. If she runs for 40 minutes, 4 days per week, how many calories wills she
burn?
3. At this rate, many weeks would it take her to burn 10 pounds through
this exercise?
Case Study 6: A 24 year old male client tells you that during his last
treadmill run, he measured his heart rate at 145 beats per minute. He tells
you that his resting heart rate is 60. He wants to know “how intense” you, as
an exercise physiologist, think this is.
What percentage of the heart rate reserve (% VO2R ) was he running at?
Case Study 7: You measure a 48 year old man’s VO2 max to be 30 ml x kg-
1
x min –1
. He tells you that he wants to begin shoveling snow from his
driveway from now on for exercise, instead of hiring a local kid. According
to the ACSM RM, heavy shoveling is about 9 MET exertion. What would
you advise him?
Your advice:
12. 12
Case Study Solutions for ACSM Guidelines Problems
Case Study 1:
70 kg man uses 2 liters of oxygen in one minute.
A. How many calories did he burn?
2 liters x 5 kcals/liter = 10 kcals
B. What was his exercise in METs?
1. 2 liters of oxygen = 2000 millilters of oxygen
2. 2000/70 kg = 28.6 ml/Kg oxygen in one minute
3. MET level = 28.6 ml x kg-1
x min-1
/ 3.5 ml/kg/min= 8 METs
4. This is a light jog pace.
Case Study 2: A man with the following information will burn how many
kcals each exercise session while running?
Treadmill at 1 % grade
Speed = 6.5 mph
Time = 30 minutes
5 times a week
Body weight = 175 pounds
= 79.5 kg
Running: Gross VO2 = 0.2 (speed) + 0.9 (speed)(fractional grade) + 3.5
First you need speed in m/min: 6.5 mph x 26.8 = 174.2 m/min
Gross VO2 = 0.2 (174.2) + 0.9 (174.2)(.01) + 3.5
= 34.84 + 1.57 + 3.5 = 39.9 ml x kg-1
x min -1
Net VO2 = 39.9 –3.5 = 36.4 ml x kg-1
x min -1
Liters/minute = (36.4 x 79.5)/1000 = 2.895 Liters/min
2.895 x 5 kcals/liter = 14.5 kcals/minute
13. 13
30 x 14.5 = 434.3 kcals
Case Study 3: If the same man walks for 30 minutes per session, how many
calories per session will he burn?
Treadmill at 4 % grade
Speed = 4.4 mph
Time = 30 minutes
5 times a week
Body weight = 175 pounds
Walking: Gross VO2 = 0.1(speed) + 1.8(speed)(fractional grade) + 3.5
4.4 mph x 26.8 = 117.92 m/min
Gross VO2 = 0.1(117.92) + 1.8(117.92)(.04) + 3.5
11.79 + 8.49 + 3.5 = 23.7 ml x kg-1
x min –1
Net VO2 = 23.7 –3.5 = 20.2 ml x kg-1
x min -1
Liters/minute = (20.2 x 79.5)/1000 = 1.6 Liters/min
1.6 x 5 = 8 kcals/minute, 30 x 8 = 240 kcals
Case Study 4: 38 year old male, resting heart rate = 60, body weight of 170
pounds, percent body fat = 18%
1. Calculate his training heart rate range from 60 to 75 % of the heart rate
reserve.
Minimum THR = (182 - 60) x .60 + 60 = 133.2
Maximum THR = (182 - 60) x .75 + 60 = 151.5
2. How many weeks would it take him to reduce his body weight to 12 %
body fat if he adhered to a proper program?
14. 14
Case Study 5: A 25 year old woman who weighs 130 pounds has a
predicted VO2 max of 40 ml x kg-1
x min -1
. You decide that you want her to
exercise (run) at 60 % of her VO2 R.
1. How fast should you set the treadmill speed in miles per hour assuming
zero percent grade?
VO2 R: 40 ml/kg/min – 3.5 ml/kg/min = 36.5 ml/kg/min
Running: VO2 = 0.2 (speed) + 0.9 (speed)(fractional grade) + 3.5
Target VO2 = .60 x 36.5 ml x kg-1
x min –1
= 24 ml x kg-1
x min –1
.
21.9 = 0.2 (speed) + 0.9 (speed)(0) + 3.5
21.9 = 0.2 (speed) + 3.5
18.4 = 0.2 (speed)
Speed = 92 meters/min
miles/hr x 26.8 = meters/minute
miles/hr x 26.8 = 92 meters/minute
Speed in mph for the treadmill = 92/26.8 = 3.4 mph
(Note: You might find that this client will prefer to walk and need to
recalculate.)
2. If she runs for 40 minutes, 4 days per week, how many calories wills she
burn?
Weight in Kgs = 130/2.2 = 59.1 kgs
Net VO2 = 24 -3.5 = 20.5 ml x kg-1
x min –1
(20.5 ml x kg-1
x min –1
x 59.1)/1000 = 1.211 Liters/O2 per minute
Kcals burned per minute = 1.211 x 5 kcals/liter O2 = 6.06 kcals
Kcals burned per session = 6.06 x 40 minutes = 242.31 kcals
Kcals burned per wk = 242.31 kcals x 4 days/week = 969.2 kcals/week
15. 15
3. At this rate, many weeks would it take her to burn 10 pounds through
this exercise?
10 pounds x 3,500 kcals/pound = 35,000 kcals
35,000/969.2 = 36.1 weeks
Case Study 6: A 24 year old male client tells you that during his last
treadmill run, he measured his heart rate at 145 beats per minute. He tells
you that his resting heart rate is 60. He wants to know “how intense” you, as
an exercise physiologist, thinks this is.
What percentage of the heart rate reserve (% VO2R ) was he running at?
% VO2R = (Exercise HR - Resting HR)/(Max HR - Resting HR)
% HRR = (145 – 60)/(196-60)
= 85/136 = 62.5 % HRR
Case Study 7: You measure a 48 year old man’s VO2 max to be 30 ml x kg-
1
x min –1
. He tells you that he wants to begin shoveling snow from his
driveway from now on for exercise, instead of hiring a local kid. According
to the ACSM RM, heavy shoveling is about 9 MET exertion. What would
you advise him?
Functional Capacity = 30/3.5 = 8.57 METs
Your advice:
This would often require supramaximal (above his VO2 max) exertion and he
is 48 years old, at least “moderate risk”. Keep hiring the kid and begin a
light supervised exercise program.