Rest day
A rest day is a day without a planned training session from the main program. It creates time between training exposures and can support recovery, scheduling, and long-term adherence. It does not require complete physical inactivity.
Ordinary walking, commuting, household tasks, or recreational movement can still occur on a rest day. A deliberately programmed low-effort session is more specifically active recovery. A deload is also different: it reduces stress across a period of the training program and can include workouts as well as full rest days.
There is no universal number of rest days required each week. The useful spacing depends on training frequency, volume, exercise selection, effort, other sports, sleep, and the person's current recovery capacity. A split routine may train on consecutive days while resting different muscle groups; a full-body plan may place a rest day between most sessions. Consecutive training days are not automatically harmful, and one weekly rest day cannot compensate indefinitely for an excessive workload.
The consensus statement on recovery and performance treats recovery as individual and specific to the preceding stressor. Practical scheduling therefore considers trends in comparable performance, technique, effort, soreness, motivation, and sleep rather than using a fixed calendar rule alone.
Rest days can be planned or added when circumstances change. Missing one workout is not detraining, and taking a rest day is not evidence that the prior training failed. If fatigue or pain repeatedly forces unplanned days off, the normal program and the non-training stress around it may need review rather than simply adding isolated recovery days.