Exercise Library

A tier shows how worthwhile an exercise is compared with others of the same type — S is the top pick, D is a supplementary option. It is not difficulty: difficulty (Beginner → Pro) is the dots on each card. A lower tier doesn't mean a bad exercise, just that there are more effective choices.

How it's ranked: Gym exercises are ranked per primary muscle by evidence (which exercises hit the target muscle best). Yoga, aerobics, cardio and stretching are ranked against other exercises of the same type — pick a type above to see its criteria.

• SBest
• AGreat
• BGood
• COK
• DExtra