THE MUSCLE & MOBILITY MAKER on Instagram: "If the full Cossack squat still feels out of reach, start here. Most people struggle not because their hips are “too tight,” but because they haven’t learned the pattern that lets them load one side without collapsing into it. This box-tap variation teaches your body exactly what to do. How to set it up: Stand with your right foot in front of a small box or step. Step your left leg out wide so both legs are fully straightened. Keep the box close enough