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Related Clues:
- ''6-pack'' muscles
- What a Bowflex may strengthen
- Trunk full of bones
- Six-pack group
- 'Six-pack'
- Core muscles, briefly
- Muscles targeted by crunches
- Body time, roughly
- What sit-ups build
- Royal Society cutting also in trunk
- Corporeal stabilizers
- Sculpture of a body
- Initially ten, approximately, in trunk
- Crunches work them
- Muscles targeted in core workouts