LetsBurnFitness guides

Strength after 40

Plain guides to building muscle and strength when you are not 25 any more: how much to train, when to add weight, what to eat, and what to do about the joint that complains. Every number links to its source.

• How to build muscle after 40

  A 3-day plan you can start on Monday, the rule for adding weight, protein per meal and swaps for sore knees, shoulders and back, with the research behind each one.

  20 September 2026 · 11 min read