energy system in muscle cells Flashcards
creatine phosphate (CP) breaks down to release energy and phosphate, which are used to convert
ADP to ATP at a fast rate
how many seconds does it take for strenuous exercise in a muscle cell to run out
10 seconds
levels of creatine phosphate are restored when energy demand
on muscle cell is low
in oxygen-deficient conditions pyruvate from glycolysis is converted
to lactic acid
Lactic acid can build up in muscle cell when
oxygen is in short supply during exercise
lactic acid build up in muscle cells can cause
muscle fatigue and an oxygen debt
oxygen debt can be repaid in a recovery period following strenuous exercise-
what is strenuous exercise?
during the time which lactic acid is broken down.
skeletal muscle contracts to bring about the movements of
of strenuous exercise
skeletal muscle have 2 types of muscle twitch
slow twitch
fast twitch
slow twitch
fibes contrast more slowly but can sustain contractions for longer and are effective for endurance athletes
fast twitch
fibes constats more quickly over short periods of times and are effective for short burst.
type of athletic for slow twitch
triathlon
heptathlon
type of athletic for fats twitch
sprinter runner