Single Leg Good Morning on a Bosu

The single leg good morning is a hip hinge performed on one leg, with the free leg extending backward as a counterweight. It trains the hamstrings and glutes of the standing leg through a long range while demanding balance and control from the hip and the ankle, which is why coaches reach for it as much for stability as for strength. Resting the free leg on a Bosu adds a point of contact that takes some of the balance problem away, making the pattern accessible before the free-standing version is realistic. The hinge is what makes it work: the movement comes from pushing the hips backward, not from bending at the waist, and the back stays flat throughout. Watch for the free leg's hip opening toward the ceiling, which switches the hamstring off. The load required is small compared with a bilateral hinge, so this fits neatly into home training and into the later stages of a hamstring rehabilitation programme.