UMass Amherst KIN 470 - 2.10.14 kin 470 lab 2 videos (2 pages)

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2.10.14 kin 470 lab 2 videos



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2.10.14 kin 470 lab 2 videos

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Pages:
2
School:
University of Massachusetts Amherst
Course:
Kin 470 - Exercise Physiology
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2 10 14 kin 470 lab 2 videos 1st slide Efficiency energy produced energy consumed Problem when exercising can t measure all energy produced by system work heat o Physics definition of work o Heat produced Economy oxygen use work rate Units ml kg Watt O2 body weight Power or L Watt O2 Power 2nd slide o energy expendture steady state O2 consumption will be a surrogate for energy expenditure O2 consumption VO2 will be measured using open circuit spirometry Units L min NOT scaled to body weight ml kg min scaled to body weight MET scaled to resting O2 consumption rd 3 o Regions O2 deficit Steady state Supply used oxygen EPOC excess post exercise oxygen consumption Fast phase o Restore oxygen stores Slow phase o Lactate back to glycogen o Hormone levels back to normal o Body temp back to normal th 4 o VO2 vs work rate o Submax work range circled 8 44 min o Vo2 vs exercise time light and heavy th 5 Lab time o protocol o minute 0 2 o minute 2 01 7 obtain baseline VO2 rest o minute 7 01 12 recovery period rest o minute 12 01 17 second exercise bout 120W 60 RPM x 2 kg o minute 17 01 22 Recovery period rest o responsibilities subject time keeper bike resistance setter


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