HK 100: EXAM 1 QUESTIONS AND ANSWERS
thin filaments have - Answers :actin
thick filaments have - Answers :myosin
sliding filament hypothesis - Answers :overlapping areas slide toward each other in a
muscle fiber
cross-bridge hypothesis - Answers :myosin connects to binding sites / calcium released
concentric contraction - Answers :muscle shortens
eccentric contraction - Answers :muscle lengthens
isometric contraction - Answers :muscle doesn't change
delayed-onset muscle soreness (DOMS) - Answers :muscle soreness that develops 24-
48 hours after exercise / caused by microscopic tears in myofibrils
what contractions cause more soreness? - Answers :eccentric
aerobic phosphagen - Answers :immediate energy
ATP, PCr, or glucose
anaerobic glycolytic - Answers :no oxygen required
glycogen or glucose
oxidative - Answers :requires oxygen
glycogen, fat, or protein
aerobic power is - Answers :VO2 Max
VO2 max - Answers :ability to continue exercising for long durations
anaerobic power - Answers :max power that can be achieved in all out exercise
components of VO2 max uptake - Answers :pulmonary function
blood flow
cardiovascular function
components of pulmonary ventilation - Answers :respiratory rate
tidal volume
components of cardiovascular function - Answers :cardiac output
stroke volume
, heart rate
what happens to the blood flow in the muscles with exercise? - Answers :more exercise,
increases the blood flow to the working muscles
muscle fiber types - Answers :slow twitch
fast twitch a
fast twitch b
slow twitch fibers (oxidative) - Answers :small
produces low levels of force
resistant to fatique
high oxidative capacity
fast twitch a (oxidative glycolytic) - Answers :large
produces high levels of force
moderately high oxidative capacity
fast twitch b (glycolytic) - Answers :large
produces high levels of force
low levels of oxidative capacity
muscle hypertrophy - Answers :increase in muscle size
caused by strength training
neural adaptations - Answers :enhances synchronous recruitment of motor units
endurance exercise training ______ the number of capillaries in the muscles and
_______ the size of the resistance and conduit arteries. - Answers :increases; increases
peak VO2 - Answers :highest rate at which a child can consume O2 during exercise
what are three main differences that can happen between male and female? - Answers
:pulmonary changes
cardiac function changes
peripheral adjustments
why study biomechanics? - Answers :improves performance
prevents/treats injuries
biomechanics - Answers :the science of physical principles applied to biologic systems;
study of how the skeletal and musculature systems work under different conditions
kinematics - Answers :description of the temporal and spatial components of movement
/ motion description
thin filaments have - Answers :actin
thick filaments have - Answers :myosin
sliding filament hypothesis - Answers :overlapping areas slide toward each other in a
muscle fiber
cross-bridge hypothesis - Answers :myosin connects to binding sites / calcium released
concentric contraction - Answers :muscle shortens
eccentric contraction - Answers :muscle lengthens
isometric contraction - Answers :muscle doesn't change
delayed-onset muscle soreness (DOMS) - Answers :muscle soreness that develops 24-
48 hours after exercise / caused by microscopic tears in myofibrils
what contractions cause more soreness? - Answers :eccentric
aerobic phosphagen - Answers :immediate energy
ATP, PCr, or glucose
anaerobic glycolytic - Answers :no oxygen required
glycogen or glucose
oxidative - Answers :requires oxygen
glycogen, fat, or protein
aerobic power is - Answers :VO2 Max
VO2 max - Answers :ability to continue exercising for long durations
anaerobic power - Answers :max power that can be achieved in all out exercise
components of VO2 max uptake - Answers :pulmonary function
blood flow
cardiovascular function
components of pulmonary ventilation - Answers :respiratory rate
tidal volume
components of cardiovascular function - Answers :cardiac output
stroke volume
, heart rate
what happens to the blood flow in the muscles with exercise? - Answers :more exercise,
increases the blood flow to the working muscles
muscle fiber types - Answers :slow twitch
fast twitch a
fast twitch b
slow twitch fibers (oxidative) - Answers :small
produces low levels of force
resistant to fatique
high oxidative capacity
fast twitch a (oxidative glycolytic) - Answers :large
produces high levels of force
moderately high oxidative capacity
fast twitch b (glycolytic) - Answers :large
produces high levels of force
low levels of oxidative capacity
muscle hypertrophy - Answers :increase in muscle size
caused by strength training
neural adaptations - Answers :enhances synchronous recruitment of motor units
endurance exercise training ______ the number of capillaries in the muscles and
_______ the size of the resistance and conduit arteries. - Answers :increases; increases
peak VO2 - Answers :highest rate at which a child can consume O2 during exercise
what are three main differences that can happen between male and female? - Answers
:pulmonary changes
cardiac function changes
peripheral adjustments
why study biomechanics? - Answers :improves performance
prevents/treats injuries
biomechanics - Answers :the science of physical principles applied to biologic systems;
study of how the skeletal and musculature systems work under different conditions
kinematics - Answers :description of the temporal and spatial components of movement
/ motion description
