Study finds maintaining aerobic capacity requires persistent training while maintaining muscle anaerobic potential does not
How long does it take to get back up to peak performance after a long break from exercise? According to one study, that depends on whether the exercise is primarily aerobic or anaerobic.
“A long interruption in training has negligible effects on short-sprint ability and muscle anaerobic potential. On the other hand, a persistent training stimulus is required to maintain high aerobic capacity and muscle oxidative potential. This may contribute to a rapid return to competitive fitness for sprinters and power athletes.”
In the study bike sprinters trained for nine weeks followed by seven weeks of detraining (no training). Researchers found that the sprinters’ aerobic enzyme levels fell, while their anaerobic enzyme levels remained high for the seven weeks of detraining. There were negligible effects on muscle anaerobic potential means the subjects remained strong.