Effects of detraining on left ventricular mass in endurance-trained individuals: a systematic review and meta-analysis.

In healthy, endurance-trained individuals, detraining results in significant reductions in left ventricular mass. When accounting for training status, the length of the detraining period is positively associated with reductions in left ventricular mass. Limited research on this topic hinders the ability to assess sex differences or the impact of the type of detraining (i.e. only activities of daily living vs. reduced training load) on the response to detraining.