KINE 2202 Lecture Notes - Lecture 4: Myocyte, Skeletal Muscle, Human Musculoskeletal System

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6 Mar 2017
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The ability of the musculoskeletal system to perform daily and recreational activities without undue fatigue and injury: muscular strength. The ability of a muscle or group of muscles to contract with maximal force: muscular endurance. The ability of a muscle to contract repeatedly over an extended period of time: resistance training (weight training) Putting measured stress on the musculoskeletal system, resulting in greater muscular strength and endurance. How do my muscles work: three basic muscle types: Skeletal muscle (voluntary: allows movement and generates body heat. Cardiac muscle (involuntary: exists only in the heart; helps pump blood. Smooth muscle (involuntary: lines internal organs and moves food, skeletal muscle consists of: Myofibrils (strands containing protein filaments: sarcomere: the smallest area in a muscle fiber where everything required for muscle contraction exists, two types of muscle fibers: Slow-twitch: oxygen dependent; contract slowly but for longer periods without fatigue.

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