CCGI – Low Back Strengthening/Endurance Exercises (Level 2)
https://youtu.be/kiVFaQAyZAE Side Plank Lie on your side with your knees bent, elbow beneath your shoulder. Rest your top arm on your side, or place your hand on your hip. Brace your abdominals and lift your hips up so that your body forms a straight line from head to knee. Hold for at least 10 seconds, [...]