detraining

I went back to the gym in September after four weeks off just to pick up where I left off: three weeks later my legs were strong again, and I understood what hadn’t come back with them

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I went back to the gym in September after four weeks off just to pick up where I left off: three weeks later my legs were ...

After four weeks off the gym, one lifter’s legs felt strong again in three weeks—but climbing stairs left them gasping. The reason? Muscle and cardio recover on completely different timelines, and understanding this split explains why most people quit their comeback prematurely.

I skipped all my workouts during a two-week summer holiday: when I saw my VO2 max on my return, I understood what my body had lost first

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I skipped all my workouts during a two-week summer holiday: when I saw my VO2 max on my return, I understood what my body ...

Just two weeks away from exercise is enough to trigger a measurable decline in VO2 max—your body’s aerobic capacity—before you lose any meaningful strength. Research shows plasma volume and mitochondrial function are the culprits, but the good news is recovery happens faster than you’d expect.