KINE 360 Lecture Notes - Lecture 2: Human Musculoskeletal System, Agonist, Muscle Contraction
24 Sep 2018
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Key terms (slide 3: anatomy: the study of components that make up the musculoskeletal machine , origin: the beginning, which moves to which? (push or pull?) Insertion: where it attaches: muscles always pulling because insertion goes to origin, biomechanics:the mechanisms through which these components interact to creat movement. Agonist: muscle most directly involved in bringing about a movement; also called the prime mover. Antagonist :muscle that can slow down or stop the movement. Body movements directly involved in sport and exercise primarily act through the bony levers of the skeleton. Mechanical advantage (ma) (slide 7: the ratio of the moment arm through which an applied (muscle) force acts to that through which a. 1st class lever: a lever for which the muscle force (fm) and resistive force (fr) act on opposite sides of the fulcrum: triceps extension exercises. Fm and fr must be on opposite sides of the fulcrum.
