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HHS 231 Chapter 9


Flexibility The ability of a joint (or joints) to move through a full range of motion
Range of motion The movement limits of a specific joint or group of joints
Stretching Exercises designed to improve or maintain flexibility
Static (passive) flexibility A joint's range-of-motion limits with an external force applied
Dynamic (active) flexibility A joint's range-of-motion limits with muscular contraction applied
Arthritis An umbrella-term for more than 100 conditions characterized by inflammation of a joint
Tendons Connective tissues attach muscle to bone
Joint The articulation or point of contact between two or more bones
Golgi tendon organs Muscle tension receptors located in tendons that are responsible for triggering muscle relaxation to relieve excessive muscle tension
Stretch receptors (muscle spindles) Muscle length receptors located within muscle fibers that trigger muscle contractions in response to rapid, excessive muscle lengthening
Stretch reflex The reflex contraction of a muscle triggered by stretch receptors (muscle spindles) in response to a rapid overextension of that muscle
Collagen The primary protein of connective tissues throughout the body
Static stretching Stretching characterized by slow and sustained muscle lengthening
Dynamic stretching Stretching characterized by controlled, full range-of-motion movements that mimic exercise session movements
Ballistic stretching Stretching characterized by bouncing, jerky movements and momentum to increase range of motion
Proprioceptive neuromuscular facilitation (PNF) Stretching that's facilitated or enhanced by the voluntary contraction of the targeted muscle group or contraction of opposing muscles
Contraindicated Not recommended
Created by: 100000033006215