Activity and Exercise CH 44 Test 2

Activity and Exercise CH 44 Test 2 - Term Definition...

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Term: Alignment and posture Definition: Bring body parts into position in a manner that promotes optical balance as long as the line of gravity passes through the center of gravity and the base of support. Term: Line of Gravity Definition: An imaginary line virtually drawn through the body's center of gravity. Term: Center of Gravity Definition: The part at which all the body's mass is centered. Term: Base of Support Definition: The foundation on which the body rest. Term: Joint mobility Definition: Joints are the functional units of the musculoskeletal system.
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Term: Range of Motion Definition: A joint is the maximal movement that is possible for that joint. Term: Balance Definition: Mechanism involved in maintaining balance and posture are complex and involve informational inputs from the labyrinth (inner ear), from vision (vestibulo-ocular-input), and from stretch receptors of musculoskeletal and tendons (vestibulospinal-input) Term: Coordinated movement Definition: Balanced, smooth, purposeful movement is the result of proper functioning of the cerebral cortex, cerebellum, and basal ganglia. Term: Isotonic (dynamic) exercise Definition: Muscle shortens to produce muscle contractions and active movement (running,walking,swimming)
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Term: Isometric (static or setting) exercises Definition: Muscle contraction with out moving the joint (strengthening abdominal, gluteal, and quadriceps muscles) Term: Isokinetic exercises Definition: Muscle contraction and or tension against resistance (special machines) Term: Aerobic Definition: Activity during the amount of oxygen taken into the body is greater than that use to perform exercise more as "recreational movement" (dancing) Term: Anaerobic Definition: Involves activity in which the muscles cannot draw out enough oxygen from the bloodstream. Endurance training such as lifting and sprinting. Term: Benefits of exercise on the musculoskeletal system Definition: Size, shape, tone, and strength.
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Term: Benefits of exercise cardiovascular Definition: Prevents stroke and heart disease. Strengthens heart muscle Term: Benefits of exercise respiratory system Definition: Ventilation, improves gas exchange, more toxins are eliminated by deeper breathing, prevents pooling of secretions in the bronchi and bronchioles, decreasing breathing effort and risk of infection Term: Benefits of exercise gastrointestinal system Definition: Improves appetite and increases gastrointestinal tract tone, facilitating peristalsis and help relieve constipation.
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