Upper legs, Exercise ball, Gym-based exercises
Muscle
Equipment
Dumbbell Squat (Back on Stability Ball Wall)
Dumbbell Sumo Squat (Back on Stability Ball Wall)
Leg Curl (on Stability Ball)
Exercise Ball Wall Squat
Weighted Exercise Ball Wall Squat
Single Leg Extension (on Stability Ball)
Weighted Reduction Triangle
Exercise Ball One-Legged Diagonal Kick Hamstring Curl
Stability Ball Single Leg Squat