Bum bridge single leg exercise is an effective exercise to work on lower body muscles. It also targets the core abdominal muscles, back and spine. Single Leg Bridge exercise is an excellent variation in regular bridge and a challenging way to work your core as it positively works on gluteus and hamstrings. Single leg exercises help you in balancing issues and increase your focus and coordination. Though particularly Single Leg Bridge is an exercise to tone gluteus but it also affects the whole core muscles. It also assists you in increasing the strength and stability in lower body.