IMG_0001 - due to the noncontractile elements plus the load...

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U3y20tt Force of Contraction Muscle Size hypertrophy: when the muscle fibers increase in size ) tension | ) strength t Hyprrtrophy 1
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U3t/2011 Series Elastic Elements = Elastic noncontractile components = Noncontractile structures tendons nerves vessels sarcolemma organelles connective tissue
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1t3y20tt The noncontractile elements must be pulled taught for the muscle to shorten These structures can stretch and recoil. The rebound returns muscles to their original shape and length The contractile elements (myofilaments) must pull these structures tight 3
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v3U20tl Internal tension : force that the contractile elements must develop to overcome the resistance placed on the muscle External tension : the opposing force which includes the tension
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Unformatted text preview: due to the noncontractile elements plus the load Internal tension > External tension to move the load , sI Length-Tensi on Relationstip s To generate the maximum force, the muscle must be slightly stretched or when actin and myosin overlap. This optimal operational length is - (80 - 120 o/o) normal rest length or 2.2 pm. Increases and decreases beyond the optimal range decrease the force and the ability to generate tension u3t/2011 314 Length - Tension relationships in 100 1 oE ()f LL I_-=X g6 Eo .aE o)o) E(J 0)Y L(U 'o_ 40 tv 40 60 80 100 120 144 160 Percentage sarcomere length l-2.2 um-l I L]I:ffir I l-1.8 pml Filamenis Thin Thick F_3.8 um ______l eVce Ssirrf-ly $-t tLthed...
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IMG_0001 - due to the noncontractile elements plus the load...

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