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Related Clues:
- Sailor's muscles?
- Main part of body thus stuck under rock
- Midsection of the body
- Some are rock-hard
- Inhalation assistants
- Core part, informally
- Plank targets
- Sculptor’s subject
- Internal stabilizers
- Planking targets them
- Certain sort of sculpture
- Muscles worked by Russian twists
- Part of the statue found in doctor's office
- Muscles that are targets of planking, informally
- Ones feeling the crunch?