28‑Day Calisthenics Challenge: Build Strength With Just Your Bodyweight
The 28‑Day Calisthenics Challenge is a structured bodyweight training program. It uses progressive overload. It requires no equipment. It builds strength, endurance, and muscle definition in four weeks. This is not a gimmick. It is a tested framework for transforming your body using only gravity. This guide breaks down the weekly phases, the exercise progressions,…

