Go for 12 crunches on one side, then repeat on the other ... Harvard Medical School says that sit-ups are hard on your back because “they push your curved spine against the floor and work ...
1. Jumping jacks 2. Wall sit 3. Push up 4. Abdominal crunch 5. Step-up onto chair 6. Squat 7. Triceps dip on chair 8. Plank ...
1. Jumping jacks 2. Wall sit 3. Push up 4. Abdominal crunch 5. Step-up onto chair 6. Squat 7. Triceps dip on chair 8. Plank ...
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