| muscle: | Hamstrings, Quadriceps, Glutes |
|---|---|
| auxiliary muscles: | Lower Back, Calves, Adductors |
| required: | Exercise Ball |
| optional: | Dumbbells (2), Kettlebells (2), Backpack |
| level: | Challenging |
| type: | Strength |
Isometric Exercises For The Back
| muscle: | Hamstrings, Quadriceps, Glutes |
|---|---|
| auxiliary muscles: | Lower Back, Calves, Adductors |
| required: | Exercise Ball |
| optional: | Dumbbells (2), Kettlebells (2), Backpack |
| level: | Challenging |
| type: | Strength |