Related Clues:
- Muscles worked by dead bug exercises
- Muscles worked in dead bug exercises
- Crunch muscles, for short
- Muscles a crop top might show off
- Muscles that planks work
- Muscles above the beltline
- Muscles worked in pull-ups and pull-downs
- Muscles toned by planks
- The hundred target, in Pilates
- They look good when they're ripped
- Things crunched in a gym
- Muscles stretched in cobra pose
- Six-packs, sometimes
- Crunch muscles
- Belly bumps?