 | Term | Definition |
| |
ATP-PC System |
This energy system is used for ATP production during high intensity, short duration exercise. Occurs instantaneously and proveds energy for muscle contraction for up to 15 seconds. |
| |
Anaerobic Glycolysis |
This energy system is a major supplier of ATP during high intensity, short duration activities. Can provide a person with 30-40 seconds of muscle contraction. |
| |
Aerobic Metabolism |
This aerobic system is used during low intensity, long duration exercise. Requires oxygen and several series of complex chemical reactions. |
| |
Type I Muscle Fibers |
Aerobic, Red, Tonic, Slow twitch, Slow-oxidative, Low fatigability, High capillary density, High myoglobin content, Smaller fibers, Extensive blood supply, Large amount of mitochondria (Marathon, Swimming) |
| |
Type II Muscle Fibers |
Anaerobic, White, Phasic, Fast twitch, Fast-glycolytic, High fatigability, Low capillary density, Low myogobin content, Larger fibers, Less blood supply, Fewer mitochondria (high jump, sprinting). |
| |
Muscle Spindle |
Distributed throughout the belly of the muscle. They function to send information to the nervous system about muscle length and rate of change of its length. |
| |
Golgi Tendon Organ |
Encapsulated sensory receptors through which the muscle tendons pass immediately beyond their attachment to the muscle fibers. They are sensitive to tension when produced from an active muscle contraction. They transmit information about tension or rate of change of tension within the muscle. |
| |
Exercise Physiology |
Page 27 - 28 |
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