Fig. 5.

Change in maximal knee extensor torque (nM) during repeated contractions for assessing endurance. A). Average of control subjects before (solid, straight line) and after bed rest (dashed, straight line). Regression coefficients: − 1.574 and − 0.919 Nm/repetition, respectively. B). Exercise subjects before (solid, straight line) and after bed rest (dashed, straight line). Regression coefficients: − 1.243 and − 0.662 Nm/repetition, respectively. The pre-bed rest slopes were not different between groups, but the control subjects showed significantly greater decline than the exercise group after bed rest. The solid, curved pairs of lines indicate 95% confidence intervals.