health 5

health 5 - Flexibility and Body Composition Lifetime...

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Flexibility and Body Composition Lifetime Fitness Lesson 5, Chapter 6 Flexibility- The range of motion possible about a given joint or series of joint. When limited, extremity motion may be negatively impacted. I. Why is it important to have good flexibility? Increased flexibility may assist with balance, performance, and reaction time. There is a debate over whether stretching helps to prevent injury o Many believe it is critical with regard to injury prevention o Should be performed after warm up II. What structures in the body can limit flexibility? Bone Fat Skin Scar Tissue Muscles and tendons Ligaments III. Active and Passive Range of Motion Active range of motion (AROM)- Motion of a joint generated by a muscle contraction. Not always indicator of joint stiffness or looseness Passive range of motion (PROM)- Portion of total range of motion through which a joint may be moved passively, without active muscle contraction. Movement beyond AROM. IV. Agonist vs. Antagonist Muscles i) Agonist muscle- The muscle that contracts and generates the desired joint motion. i.e quadriceps when generating knee extensions.
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This note was uploaded on 03/30/2008 for the course PHYA 105 taught by Professor Staff during the Fall '07 term at UNC.

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health 5 - Flexibility and Body Composition Lifetime...

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