To do a weighted plie squat on a bosu ball, start by holding a kettle bell with one hand. Place it up on your shoulder, completely bending your elbow. Keep your entire arm close to your body. Now point your toes to the sides and spread your feet about four feet apart as you place one foot on the bosu ball. Keep your abs clenched as you bend your knees until your thighs are parallel to the ground. Now come back to a standing position. Repeat the movement for 2 sets of 12 repetitions (on each arm and leg).
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