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In vivo muscle force and muscle power during near-maximal frog jumps - Fig 3

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posted on 2017-03-10, 18:36 authored by Eng Kuan Moo, Daniel R. Peterson, Timothy R. Leonard, Motoshi Kaya, Walter Herzog

Representative curves of (A) muscle force, (B) length changes, (C) shortening velocity, and (D) shortening power of a plantaris longus (PL) muscle (black solid curves) and/or fascicle (red dashed curves) during a 65cm jump as shown in Fig 2. The duration of muscle activation is indicated by the yellow-highlighted region on the time axes. Time zero is defined as the beginning of the propulsive phase (see ‘Methods’ section for details). The inset in (B) shows the sarcomere force-length curve of a frog [41], with the sarcomere range observed in the current study highlighted by a bold red line (from 1.91±0.08 μm to 2.07±0.09 μm; Nfiber = 6). Peak shortening power occurred when peak muscle force and peak shortening velocity were achieved.

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