Aerobic Exercise

Question 1

measure of the body’s capacity to use O2.

Answer 1

VO2Max

Question 2

ability to work for prolonged periods of time and resist fatigue

Answer 2

endurance

Question 3

the ability to perform physical work

Answer 3

fitness

Question 4

CV system and muscles adapt to training stimulus over time

Answer 4

adaptation

Question 5

measure of oxygen used by the myocardial muscle

Answer 5

mVO2

Question 6

ATP-PC

Answer 6

short quick bursts of energy

used for first 30 seconds of intense exercise

Question 7

glycogen

Answer 7

moderate intensity/short duration

used from the 30th second to the 90th second of exercise

Question 8

glycogen, proteins, fats

Answer 8

long duration

used after the second minute of exercise

Question 9

characteristics of Slowtwitch Muscle Fibers

Answer 9

will look red
slow contractile response
low anaerobic capacity
high oxidative
good for ENDURANCE (low intensity)

Question 10

characteristics of Fast Twitch Muscle Fibers (IIB)

Answer 10

will look white
fast contractile response
low myoglobin content, few mitochondria
used for POWER

Question 11

characteristics of Fast Twitch Muscle Fibers (IIA)

Answer 11

good for aerobic and anaerobic exercises

Question 12

measurement used to quantify how much energy is expended based on the amount of oxygen consumed (mL) per kilogram of body weight

Answer 12

METs

Question 13

the higher the net O2 cost, the lower the efficiency in performing the activity

Answer 13

efficiency

Question 14

Pressor Response

Answer 14

pressure caused by vasoconstriction so the BP increases

Question 15

do changes occur before exercise starts?

Answer 15

yes

increase in HR, BP, RR, body temperature, epinephrine, stimulation of receptors of joint or muscles

Question 16

what are the determinants of an exercise program?

Answer 16

intensity
duration
frequency
mode

Question 17

Karvonen’s Formula

Answer 17

Exercise HR = HRrest + 60-70%(HRmax-HRrest)

Question 18

Children

Answer 18

HR = 80-130
SV = 30-40 mL
BP = 100/70
RR = 30 breaths/min

Question 19

Young Adults

Answer 19

HR = 60-65
SV = 60-80
BP = 120/80
RR = 12-15 breaths/min

Question 20

Older Adults

Answer 20

HR = decreases with age
SV = decreases
BP = increases 150/90
RR = increases