Forget crunches — this 10-minute bodyweight ab workout sculpts a strong core without ...
If the jump is too much, step one leg out and then the other. Alternating bent-leg jackknife: 30 seconds For this exercise, ...
来自MSN21 天
Forget planks — you only need 10 minutes and a pair of dumbbells to build a stronger core
Furthermore, the bodyweight exercises such as the Single Leg Jackknife to Bicycle and Side Plank Oblique Crunch require the core muscles to stabilize the body against gravity, effectively ...