Balance lunges are an excellent advancement of lthe basic lunge. They simultaneously initiate both the core muscle groups and the muscles groups involved in the lower kinetic chain. Practical Benefits: Every time you stride while running or push explosively down on the pedal of the bicycle, your thigh musculature must explode with power as the core musculature works to balance the hips and spine. Areas of Cautions: Avoid this exercise if you experience knee or lower back pain during or after the exercise. Correct form (knee does not extend beyond the toe) will help you perform it safely.