IMG_0001_NEW_0006 - full B Strensth Testing Techniques 1...

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MUSCULAR STRENGTH Muscular strength - the greatest amount of force that muscles can produce in a single maximal effort. Power - work per unit time - force X velocity' Power involves strength and speed. A. Twes of Muscular Contraction i the bony levers move of motion wo Concentric contraction - the muscle shortens with varying tension as it lifts a constant 1 baa.i), i:, \ Eccentric contraction - the extemal resistance exceeds the muscle force and the muscle lengthens while developing force. Eccentric contractions are usually used in resisting gravity. i" ! @ - static contraction. -Tension is developed hut there is no chanqe in the angle of the joint or the length of the muscle' instrumentation range of motion. ffi- tle muscte ts shorte determined by [email protected] force throughoutthe
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Unformatted text preview: full B. Strensth Testing Techniques 1. One Repetition Maximum - maximum amount of weight lifted once. Use free weights or machines that allow dynamic muscle contractions - Universal Gym, etc. Nautilus Machines - accommodating resistance devices - leverage characteristics change as the joint goes through arange of motion so that the muscle is stressed more at more optimal joint angles. 2. Dynamometer Techniques - a strength testing dynamometer usually consists of a spring of some type which is deformed a certain amount when a specific force is applied to it (e.g., - hand grip dynamometer)'- measures isometric strength- relatively inexpensive, high reiiability if body position is carefully standardized for each trial of the test when...
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  • Fall '09
  • asmundson
  • Muscular Strength, hand grip dynamometer, dynamic muscle contractions, Nautilus Machines, strength testing dynamometer

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