Lab Exam 1- Lab 1

Question 1

absolute terms

Answer 1

actual measured values with units

Question 2

cellular work

Answer 2

active transport

Question 3

chemical work

Answer 3

involved in ATP biosynthesis

Question 4

constant work rate test

Answer 4

work rate remains fixed throughout the test

Question 5

cycle ergometer permits accurate measurement of

Answer 5

work (J) and power (W)

Question 6

define power

Answer 6

the rate of work done

Question 7

define work

Answer 7

the transfer of energy

Question 8

what is the difference between kg and kgm/kpm

Answer 8

kg is a unit of mass
kgm or kpm is a unit of WORK

Question 9

equation to calculate work

Answer 9

work= force * distance

Question 10

examples of absolute intensities

Answer 10

100 W
10 MPH

Question 11

exercise intensity can be expressed in

Answer 11

absolute and relative terms

Question 12

exercise intensity is often expressed as

Answer 12

a % VO2 max (or relative aerobic)

Question 13

graded exercise test

Answer 13

the work rate changes during the test and is often the IV

Question 14

how do humans perform work

Answer 14

transform chemical energy from food

Question 15

how can you convert kgm to kpm to J

Answer 15

multiply by gravity (9.81)

Question 16

how do you quantify mechanical work

Answer 16

the product of the force applied on an object and the distance the object moves in the direction of the force while the force is applied

Question 17

how else can energy be measured

Answer 17

calories

Question 18

how else can power be expressed

Answer 18

kcal per minute
kgmmin-1
kpmmin-1

Question 19

how else is work measured

Answer 19

Nm
kgm
kpm

Question 20

how is resistance set on ergometer

Answer 20

by loosening or tightening the belt

Question 21

how to calculate power

Answer 21

power=work/time

Question 22

how to calculate work on a treadmill

Answer 22

multiply the vertical distance by the force on the treadmill (or the subjects body weight * gravity)

Question 23

in this lab what are we quantifying

Answer 23

mechanical work

Question 24

mechanical work

Answer 24

muscular contractions

Question 25

non steady state

Answer 25

any time a parameter is systematically changing over time

Question 26

physiological and performance data obtained in exercise physiology are expressed either as

Answer 26

absolute or relative terms

Question 27

relative physiological and performance parameters

Answer 27

values expressed in relation to another value

Question 28

relative exercise intensities are expressed relative to

Answer 28

each individuals maximal capacities

Question 29

SI unit for energy

Answer 29

Joule (J)

Question 30

SI unit for power

Answer 30

Watt (W)

Question 31

steady state

Answer 31

heart rate, VO2, etc become stable for an extended period of time

Question 32

the rate of transforming metabolic energy to physical performance (such as anaerobic or aerobic) is

Answer 32

power

Question 33

types of work

Answer 33

chemical work cellular work mechanical work

Question 34

what is another word for incline on a treadmill

Answer 34

percent grade

Question 35

what is energy

Answer 35

the capacity to do work

Question 36

what is required for a more accurate calculation of work on a treadmill

Answer 36

an incline

Question 37

what is the distance the wheel travels in the ergometer

Answer 37

6 m per 1 revolution

Question 38

what is the ergometer

Answer 38

a friction braked cycle which has a belt wrapped around the wheel

Question 39

what is the IV in constant work rate test

Answer 39

time

Question 40

what is the percent grade on an incline mean

Answer 40

the vertical rise per 100 units of belt travel 10% grade means you are going 10 m incline per every 100 m traveled

Question 41

what is the SI unit for work

Answer 41

Joule (J)

Question 42

when do non-steady state conditions always occur

Answer 42

at the initial transition to a new work rate (because it takes time for phsyiological parameters such as heart rate and VO2 to reach steady state)

Question 43

exercise physiology

Answer 43

the study of WHY and HOW the body responds and adapts to exercise

Question 44

function

Answer 44

WHY something happens ex) HR increases to deliver more O2 to working muscle tissue

Question 45

mechanism

Answer 45

HOW something happens ex) HR is increased through parasympathetic withdrawal and increased sympathetic nerve activity

Question 46

what do humans convert potential energy (food) into

Answer 46

chemical, cellular, and mechanical work

Question 47

how is work measured

Answer 47

J, kcal, kpm, kgm

Question 48

what measures work

Answer 48

ergometer (cycle or treadmill)

Question 49

how is power measured

Answer 49

W, kcal/min, kgm/min, kpm/min

Question 50

1 W = ? kpm/min

Answer 50

6 kpm/min

Question 51

In this lab, O2 consumption will always be expressed as

Answer 51

a rate VO2

Question 52

graded exercise test (GXT)

Answer 52

in a GXT, the work rate is changing and is often the IV

Question 53

what is the IV in a graded exercise test

Answer 53

work rate

Question 54

what is the DV in a graded exercise test

Answer 54

VO2 (L/min)

Question 55

constant work rate exercise test

Answer 55

work rate is constant. time is often the IV

Question 56

what is the DV in a graded exercise test

Answer 56

VO2 (L/min)

Question 57

what is a measure of relative aerobic power

Answer 57

%VO2 max