AFAA Study Guide
Study online at https://quizlet.com/_juov04
1. Kinetic Chain Interrelation of nervous, muscular, and skeletal systems to create movement.
2. Central Nervous Brain and spinal cord; coordinates overall body activity.
System (CNS)
3. Peripheral Nervous Nerves branching off the spinal cord extending to the rest of body.
System (PNS)
4. Golgi Tendon Or- Sense changes in muscular tension, responding by relaxing the muscle.
gans (GTO)
5. Muscle Spindles Sense changes in muscle length, responding by contracting lengthening mus-
cles.
6. Type I Muscle Slow-twitch, highly aerobic, fatigue-resistant muscle fibers suited for en-
Fibers durance.
7. Type II Muscle Fast-twitch, anaerobic fibers generating fast power but fatiguing quickly.
Fibers
8. Concentric Muscle Action where muscle shortens while exerting force against resistance.
Action
9. Eccentric Muscle Action where muscle lengthens while developing tension.
Action
10. Isometric Muscle Action where muscle exerts force equal to resistance without length change.
Action
11. Agonist Muscle The muscle primarily responsible for producing a specific movement.
1/5
, AFAA Study Guide
Study online at https://quizlet.com/_juov04
12. Antagonist Muscle The muscle that performs the opposite movement of the agonist.
13. Cardiac Output (Q̇) Heart rate multiplied by stroke volume; total blood volume pumped per minute.
14. Sagittal Plane Divides body into left and right; involves forward and backward movements.
15. Frontal Plane Divides body into front and back; involves side-to-side lateral movements.
16. Transverse Plane Bisects body into top and bottom; involves rotational movements.
17. Abduction vs. Ad- Abduction moves away from midline; adduction moves toward midline.
duction
18. ATP-PC Energy Sys- Primary energy system for explosive actions lasting 0 to 6 seconds.
tem
19. Glycolytic Energy Anaerobic pathway producing energy for high-intensity efforts lasting 30-120
System seconds.
20. Oxidative Energy Aerobic energy pathway used during sustained, lower-intensity activity beyond
System 3 minutes.
21. General Adaptation Alarm (initial stress), Adaptation (physiological progress), and Exhaustion
Syndrome Phases (overtraining risk).
2/5
Study online at https://quizlet.com/_juov04
1. Kinetic Chain Interrelation of nervous, muscular, and skeletal systems to create movement.
2. Central Nervous Brain and spinal cord; coordinates overall body activity.
System (CNS)
3. Peripheral Nervous Nerves branching off the spinal cord extending to the rest of body.
System (PNS)
4. Golgi Tendon Or- Sense changes in muscular tension, responding by relaxing the muscle.
gans (GTO)
5. Muscle Spindles Sense changes in muscle length, responding by contracting lengthening mus-
cles.
6. Type I Muscle Slow-twitch, highly aerobic, fatigue-resistant muscle fibers suited for en-
Fibers durance.
7. Type II Muscle Fast-twitch, anaerobic fibers generating fast power but fatiguing quickly.
Fibers
8. Concentric Muscle Action where muscle shortens while exerting force against resistance.
Action
9. Eccentric Muscle Action where muscle lengthens while developing tension.
Action
10. Isometric Muscle Action where muscle exerts force equal to resistance without length change.
Action
11. Agonist Muscle The muscle primarily responsible for producing a specific movement.
1/5
, AFAA Study Guide
Study online at https://quizlet.com/_juov04
12. Antagonist Muscle The muscle that performs the opposite movement of the agonist.
13. Cardiac Output (Q̇) Heart rate multiplied by stroke volume; total blood volume pumped per minute.
14. Sagittal Plane Divides body into left and right; involves forward and backward movements.
15. Frontal Plane Divides body into front and back; involves side-to-side lateral movements.
16. Transverse Plane Bisects body into top and bottom; involves rotational movements.
17. Abduction vs. Ad- Abduction moves away from midline; adduction moves toward midline.
duction
18. ATP-PC Energy Sys- Primary energy system for explosive actions lasting 0 to 6 seconds.
tem
19. Glycolytic Energy Anaerobic pathway producing energy for high-intensity efforts lasting 30-120
System seconds.
20. Oxidative Energy Aerobic energy pathway used during sustained, lower-intensity activity beyond
System 3 minutes.
21. General Adaptation Alarm (initial stress), Adaptation (physiological progress), and Exhaustion
Syndrome Phases (overtraining risk).
2/5
