Plank (Uttihita Chaturanga Dandasana)The arms, chest, shoulders, abdominals, quadriceps, gluteals, calves, and feet are working to assist in holding the body upright. Maintaining this high plank posture with hips level calls on the abdominal muscles for support. Plank pose tones from head to toe.
Side Plank (Vasisthasana)Supporting the weight of the body on one arm doubles the amount of bodyweight and exerts more effort and energy by increasing calorie burn. The arms, oblique muscles, serratus anterior, quadriceps, and ankles work on overdrive, especially the supporting side of the body.
Tree Pose (Vrksasana)Tree pose strengthens the supporting leg, gluteal muscles and arms as well as the abdominals for stability. When one side of the body is supporting the posture for balance, additional strength and calorie burn is added.