| muscle: | Rectus Abdominis |
|---|---|
| auxiliary muscles: | Adductors, Quadriceps, Deltoids, Abductors, Obliques, Triceps |
| required: | Nothing |
| optional: | Seat, Fitness Mat |
| level: | Challenging |
| type: | Strength - isometric |
| muscle: | Rectus Abdominis |
|---|---|
| auxiliary muscles: | Adductors, Quadriceps, Deltoids, Abductors, Obliques, Triceps |
| required: | Nothing |
| optional: | Seat, Fitness Mat |
| level: | Challenging |
| type: | Strength - isometric |