15-minute "lower body workout" without equipment.
EMOM: every minute on the minute (perform a fixed number of repetitions of 4 exercises at the beginning of a minute, the remaining seconds of the minute are for recovery).

20-minute "lower body workout" without equipment.
EMOM: every minute on the minute (perform a set number of repetitions of an exercise at the beginning of a minute, the remaining seconds of the minute are for recovery).