TABLE I 02 UPTAKE AND DEVELOPED TENSION BEFORE AND AFTER FATIGUE IN SERIES 1 Pre-Fatigue (Single Impulses) Post-Fatigue (Twin Impulses) Developed Developed Experiment Tens ion (a-g 1) O2 Uptake (ul 09-g~1-C1) Tension (q*q-1) O2 Uptake (yl 0?q-1-C- 1 148 .688 125 . 361 2 196 . 314 177 .356 3 254 .579 250 .446 4 134 . 396 174 .435 5 207 .452 178 .258 6 219 . 382 197 .476 Mean SEM 193 18 .468 + .057 184 16 .389 .033 Units are as given for Figure 3 u> o