Term
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Definition
used during short duration and high intensity activites
quantity of intramuscular phosphagens substantially influences energy for brief durations
creatine kinase regulates the rate of phosphagen breakdown |
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Term
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Definition
| lactic acid formed from fast glycolysis is immediately changed to this |
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Term
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Definition
| represents the point where blood lactate accumulates faster than it can be removed and/or utilized for fuel; can be used as a predictor of performance |
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Term
| Fast-twitch or Type II muscle fibers |
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Definition
possess rapid contraction speed and high capacity for glycolytic anaerobic ATP production
used during change-of-pace and stop-and-go activities, increased force output, or during all-out effort requiring rapid, powerful movements |
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Term
| slow-twitch or type I muscle fibers |
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Definition
generates energy primarily aerobically
possesses relatively slow contraction speeds
used during continuous activities |
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Term
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Definition
| recovery oxygen uptake or excess post-exercise oxygen consumption (EPOC) now defines the excess oxygen uptake above the resting level in recovery, which refers to the total oxygen consumed after exercise in excess of pre-exercise baseline level |
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Term
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Definition
resynthesis of ATP and PCr
resynthesis of blood lactate to glycogen
oxidation of blood lactae in energy metabolism
restoration of oxygen to blood, tissue fluids, and myoglobin
thermogenic effects of elevated core temperature
thermogenic effects of hormones, particularly the catecholamines epinephrime and norephinephrine
increased pulmonary and ciculatory dynamics nad other elevated levels of physiologic function |
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Term
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Definition
| in low-intensity, primarily aerobic exercise, about half of the total EPOC occurs place within 30 seconds; complete recovery requires several minutes |
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Term
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Definition
| a second, slower phase occurs in recovery from more strenuous exercise that, depending on exercise intensity and duration, may require 24 hours or more before re-establishing the pre-exercise oxygen uptake |
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Term
| 3 phases of linear sprinting |
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Definition
acceleration
attainment
maintenance
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Term
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Definition
| will permit an athlete to run faster than his or her natural pace and is typically prescribed to help increase stride frequency |
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Term
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Definition
| often prescribed to increase force production and stride length during unresisted sprinting |
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Term
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Definition
change in distance over time
critical component to anaerobic sport performance |
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Term
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Definition
rate of change of velocity over time
athlete's ability to reach high velocities in a short period of time
explosive acceleration is major advantage in many sports |
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Term
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Definition
| athlete's ability to react to a stimulus |
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Term
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Definition
| ability to maintain maximal speed over several repetitions |
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Term
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Definition
1. acceleration
2. maximum speed maintenance
3. speed endurance or deceleration |
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Term
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Definition
| sprint speed= stride length x frequency |
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Term
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Definition
length of each stride during sprinting
from toe-off to foot strike on same side
determined by: leg length, leg strength & power (flight time), sprinting mechanics
improved by increasing ability to develop explosive forces applied to group |
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Term
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Definition
| number of foot contacts per period of time |
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Term
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Definition
| all-out exercise for up to 60 |
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Term
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Definition
| specific spacing of high intensity exercise and rest periods |
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