Last seen in:
- Universal - Feb 2 2023
- The Washington Post - Mar 12 2022
- L.A. Times Daily - Mar 12 2022
- L.A. Times Daily - Sep 9 2021
- The Washington Post - Sep 9 2021
- The Washington Post - Jul 13 2018
- L.A. Times Daily - Jul 13 2018
- Wall Street Journal - Jun 8 2017 - Clocking In
- Wall Street Journal - Feb 4 2017 - Missing the Big Game
- L.A. Times Daily - Jul 5 2015
Related Clues:
- Muscles worked by Russian twists
- Muscles that are targets of planking, informally
- Ones feeling the crunch?
- Stabilizing muscles
- What your core covers
- Focus for a core workout
- Fitness centers?
- Muscles worked by side planks
- Core muscles, in brief
- "Six-pack"
- Muscles that get 'crunched' in crunches
- Auto safety feature preventing skidding, for short
- Flutter kicks work them
- Targets of sit-ups
- Core components, for short