The sliding filament theory of muscle contraction was proposed by Andrew Huxley and Rolf Niedergerke in 1954.
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the myofilaments themselves do not contract, they slide, this is
called the Sliding Filament theory, in which the thick filament
(Myosin) slides over the thin filament (Actin).
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decreased width of the H band during contraction
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Dear freind!
there is not any filamnet sliding in isometric contraction and
so there is no work...
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The sliding filament model of contraction involves actin
filaments overlapping myosin filaments.