... to the force depression but not force enhancement properties observed at steady-state following active shortening and stretching in skeletal muscle, respectively. Force depression Force enhancement Cross-bridge cycling kinetics Cross-bridge theory Proportion of attached cross-bridges Force per cross...

.... Second harmonic generation imaging Cross-bridge theory Sliding filament theory Muscle contraction In situ Multi-photon microscopy Sarcomere length non-uniformity Sarcomere length instability Skeletal muscle properties The maximal active isometric force a muscle can exert depends on its...

... enhancement Cross-bridge theory Eccentric contractions The current, and generally accepted, theory which explains active force production in muscle is the sliding filament-based cross-bridge model. This model predicts that active force is produced when cross-bridges cyclically form between the thick...

... regulation in skeletal muscle that incorporates the traditional cross-bridge theory, but adds titin as a third filament with force-regulating properties to the sarcomere. Although this is merely a proposal for a new mechanism of muscle contraction and force production that needs rigorous testing, it has...

... muscle cross-bridge theory force production frog Rana pipiens It is well accepted that the residual, steady-state isometric force following active stretch of a muscle or fibre on the descending limb of the force–length relationship is greater than the purely isometric force...

... and Tsuchiya, 1996 ; Herzog, 1998 ; Herzog and Leonard, 2002 ). passive force skeletal muscle stretching titin cross-bridge theory sarcomere length stability molecular spring calcium © The Company of Biologists Limited 2003 2003 17 5 2003 * Author for correspondence (e...