LFIT4 - Flexibility and Body Composition What is...

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Flexibility and Body Composition What is flexibility Defined as the range of motion possible about a given joint or series of joints Specific to a given joint or movement When limited, extremity motion may be negatively impacted Should I be worried about flexibility? Increased flexibility may assist with balance, performance, and reaction time Debate over whether stretching helps to prevent injury, performed after warm-up Structures limiting flexibility: Bone Fat Skin Scar tissue Muscles and tissues Ligaments Two ranges of motion: Active range of motion (arom): o Motion of a joint generated by a muscle contraction o Not always an indicator or joint stiffness or looseness Passive range of motion (prom): o Portion of total range of motion through which a joint may be moved passively, without active muscle contraction o Movement beyond arom.
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Agonist muscle: The muscle that contracts and generates the desired joint motion Ex. Quads when generating knee extension Antagonist muscle: Muscle that stretches in response to agonist muscle contraction Ex. Hamstrings stretch as quads contract to extend knee Coordination between agonists and antagonists in critical for coordinated, smooth joint motion. Different stretching techniques:
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LFIT4 - Flexibility and Body Composition What is...

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