It has a floor.
The floor is the smallest week you still count: often one full-body session built around the big movements, plus a walk. It isn’t the fastest route, and it still works. The World Health Organization’s guidelines put it plainly: some physical activity is better than none.1 In one trial, older adults who lifted once a week gained strength much like those who lifted three times a week.2 The floor is what you hit on the worst week. Good weeks add to it. (Why a floor beats a fresh start.)
