Strength is useful far beyond places designed to measure it.

Being strong shows up in places that have nothing to do with sport. Carrying a child, moving house, staying comfortable on a long day, recovering from illness, getting up off the floor at eighty. The measurable version is a small part of what it is for, and the everyday version is what you actually live in.

Build strength for the ordinary uses. A little, regularly, for years. The purpose is not performance, it is the quiet ease of a normal day.