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Force and length responses in normal RFE and RFE after 12.5% shortening conditions. Red lines indicate the reference isometric contraction at an average sarcomere length of 3.0 μm and blue lines indicate the RFE condition. RFE was observed by 12.5% of fiber length active stretch but this RFE was substantially attenuated by the same amount of quick shortening performed immediately after the active stretch (Reproduced with permission from Fukutani and Herzog, 2018).
