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Category:
Abs
Description:
Perform the plank with legs elevated, feet on a gymball. Once stabilised, slowly move one foot sideways off the ball, then make it touch the floor, then come back to starting position. Alternate with the other foot.
This is a core exercise.
Muscles:
The diagram shows the most used muscles on this exercise
Main muscles
Secondary muscles
- Rectus abdominis
- Obliquus externus abdominis