food intake varies with every type of individual, so here are some food tips which can keep you healthy, stay fit and delay the age occurring degeneration, though along with proper food intake exercise is must.
food intake varies with every type of individual, so here are some food tips which can keep you healthy, stay fit and delay the age occurring degeneration, though along with proper food intake exercise is must.
This slide give a complete introduction on how energy plays an important role in sports athletes, types of energy system, how body responds to energy system and Vo2max and its importance.
Your energy expenditure is simply the number of calories your body uses. Energy requirements are the amount of food energy that should be eaten to compensate for caloric expenditure. It’s important to learn these energy requirementes to have a good energy balance.
This slide give a complete introduction on how energy plays an important role in sports athletes, types of energy system, how body responds to energy system and Vo2max and its importance.
Your energy expenditure is simply the number of calories your body uses. Energy requirements are the amount of food energy that should be eaten to compensate for caloric expenditure. It’s important to learn these energy requirementes to have a good energy balance.
This is a follow-up to our "Everything you always wanted to know about Nutrition but were afraid to ask" webinar. We received many questions about the role of macronutrients (carbs, proteins, and fats) in our diet--how much, what kind, what balance, etc. So we're dedicating an entire webinar to this subject! With Cristin Stokes, RD, LN of MUS Wellness.
Peak Performance Of A Marathon Runner With A Sub 2 Hr 40 Race TimeCarl Page
In this physiology assignment discusses how the cardio-respiratory systems facilitate the energy systems that are used during a peak performance of a marathon runner with a sub 2 hr 40 race time. Also suggests and justifies a physiological assessment which could be used to help understand the person’s fitness and specific physiological responses to exercise.
Metabolism for Engineers (Useful for B.Tech., B.E. students)Dr. Arun Sharma
Metabolism: Purpose: The fundamental principles of energy transactions
are the same in physical and biological world. Thermodynamics as applied
to biological systems. Exothermic and endothermic versus endergonic and
exergonic reactions. Concept of Keq and its relation to standard free
energy. Spontaneity. ATP as an energy currency. This should include the
breakdown of glucose to CO2 + H2O (Glycolysis and Krebs cycle) and
synthesis of glucose from CO2 and H2O (Photosynthesis). Energy yielding
and energy consuming reactions. Concept of Energy charge.
A descriptive presentation for skeletal muscles and also describing the physical and chemical changes during muscle contraction and also a little sliding filament theory. This also contains a good explanation method for the sports students also.
1. 09/10/99
LLeeccttuurreess 3311:: MMeettaabboolliissmm aanndd
BBrreeaatthhiinngg
Readings: Chapanis (1996, chapter 5)
Acknowledgement: In addition to the Chapanis text,
portions of this lecture were extracted from
Other Ergonomics texts
2. QQuueessttiioonnss ttoo bbee aaddddrreesssseedd
l What is the relationship between oxygen
uptake, burning of energy
– (digestion and use of the energy in food),
l and blood flow
– (heart rate)?
l What factors affect the energy balance of the
body?
3. IInnttrroodduuccttiioonn
l Breathing and Metabolism are basic functions
that allow us to survive.
l We need to design tasks that are not too
physically demanding, and that have enough
rest breaks built into them.
l Biochemistry of metabolism is well understood,
but beyond the scope of this course (addressed
in third year)
5. CCeennttrraall NNeerrvvoouuss SSyysstteemm
l includes the brain and spinal cord
l receives information from our various senses,
l transmits it to the central nervous system for
control and decision-making
6. PPeerriipphheerraall NNeerrvvoouuss SSyysstteemm
l includes the cranial and spinal nerves
l regulates involuntary functions of
– cardiac muscles, blood vessels, digestion, and
glucose release by the liver
l is responsible for the "flight, fright, or fight”
reactions that we experience in emergency or
dangerous situations
8. CCiirrccuullaattoorryy SSyysstteemmss
l The main circulatory system
– consists of the blood vessels and capillaries that
are richly distributed throughout the human body.
– provides the means by which these products are
transported between lungs, hearts, muscles, and
other body cells.
9. EEnneerrggyy BBaallaannccee EEqquuaattiioonn
l I = M + W + S
l where
l
l I = energy supplied to the body by food or drink
l M = metabolic energy
l W = work performance
l S = energy store in the body
10. SSiiggnniiffiiccaannccee ooff ““wwoorrkk pphhyyssiioollooggyy
l Safety & health
l Methods evaluation
l Job evaluation
l Rest scheduling
l Job specification
l Employee selection
11. MMeettaabboolliissmm
l Definition
– Transformation: chemical energy work
l
– kilocalorie (kcal)
– 1 kcal = 1000 cal = 1 Cal
= heat required to raise 1 liter H2O
15 °C 16 °C
16. BBaassaall MMeettaabboolliissmm
l Male ( 70 kg ): 1700 kcal/day @ 1.2 kcal/min
l Female ( 60 kg ): 1400 kcal/day @ 1.0 kcal/min
l Factors:
– Sex
– Size
– Age
20. OOxxyyggeenn UUssaaggee
l People are biologically adapted to breathing air
that contain 21% oxygen by volume at sea
level.
l Too little oxygen (hypoxia) induces sleepiness,
headache, inability to perform simple tasks
l In the extreme lack of oxygen leads to loss of
consciousness and death.
21. AApppplliiccaattiioonnss ooff WWoorrkk PPhhyyssiioollooggyy
l Calculate rough energy balance
l Measure physical workload
l Adjust physical demands of work as necessary
22. QQuueessttiioonnss aanndd EExxeerrcciisseess
l Why does oxygen uptake tend to increase
when heart rate increases?
l Why does the body need oxygen?
l Why does dieting sometimes make it more
difficult to lose weight in the future?
l What is a comfort zone and why should we be
designing for it?