Individual W′ estimated from maximal effort test, and average contraction impulse above fCF_impulse in the constant intensity exercise tests where subjects exercised above fCF_impulse.

Above and Below fCFimpulse – data from constant load test where target force was 10% above or 10% below the highest fCFpeak force of the two maximal effort tests. Subject 5 exercised above his fCFimpulse during the constant intensity 10% below test and therefore these data have been included.