Small (1%) length decreases in single muscle fibers reduce tension almost entirely through a decrease in calcium release rather than changes in mechanical factors.
Do small length changes affect calcium release and tension in single muscle fibers?
Small changes in muscle fiber length affect tension primarily through changes in calcium release rather than mechanical factors.
Absolute Event Rate: 0% vs 0%
In single muscle fibers, small (1 percent) changes of length have a marked effect of both the calcium activation and the tension elicited by a constant current stimulus. The decrease in tension with shortening is accounted for almost entirely by a decrease in calcium release, rather than by changes in mechanical factors, such as filament geometry.
Ridgeway et al. (Fri,) reported a other. Small (1%) length decreases in single muscle fibers reduce tension almost entirely through a decrease in calcium release rather than changes in mechanical factors.