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1-22-08 Strength Training

1-22-08 Strength Training - Integrated Strength Training...

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11-22-08 Integrated Strength Training Define strength training and why it’s important Review anatomical and physiological aspects of improving strength Review the benefits of strength training Review important strength training principles Describe different strength training tools and aids Review progressions and guidelines for strength training What is Strength? The ability of the neuromuscular system to provide internal tension (muscle contraction) and exert force against external resistance (weight). Why is Strength Training important? Aerobic exercise improves cardio-respiratory fitness, but does little to improve muscular strength o Important for athletic performance and doing the normal activities of daily living Systems Involved in Strength Development Neuromuscular system o Nerves connect with muscles and depending on the stimulus, tell the muscles to contract (development of internal tension) o The higher the stimulus (weight), the more muscle fibers are told to contract o The more fibers that contract, the more resistance we can overcome (strength) Musculoskeletal system o Bones, muscles, and tendons create a series of levers and pulleys that generate force against external objects o Particular attachments of muscles to bones will determine how much force the muscle is capable of generating Biomechanics
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Types of Muscle Contractions that Need to e Trained Concentric contraction o Muscle shortening occurs while tension is developed to overcome a resistance Eccentric contraction o Muscle contraction that involves a lengthening of the muscle Isometric contractions o Muscle contraction that produces tension but does not result in a change of muscle length o Considerable force can be generated without movement occurring.
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