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