Lecture22-2009W - Mechanics of Muscle Contraction...

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Mechanics of Muscle Contraction Isotonic vs. isometric contractions How isometric? Antagonistic pairs (e.g. quadriceps vs. hamstring) Isometric Isotonic * stretched elastic elements concentric vs. eccentric contraction (= lengthening) Summation of muscle twitches summation and tetanus
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Length-tension relation
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Unformatted text preview: Length-tension relation Contractile component A whole muscle (+elastic comp.) Work of contraction Work being performed by the muscle W = F x D W1 = W2 F1 x D1 = F2 x D2 F1 x 5 = 2 x 15 b F1 = 6Kg W1 = W2 F1 x D1 = F2 x D2 F1 x 5 = 7 x 25 F1 = 35Kg...
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  • Spring '09
  • Tanda
  • F1, eccentric contraction, Isometric Contractions

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