Phoenix, ArizonaOwner - Curves South Mountain - a Women's Fitness and weight management facility in Phoenix, Arizona. Curves is not your typical women's fitness club. The... Owner - Curves South Mountain - a Women's Fitness and weight management facility in Phoenix, Arizona. Curves is not your typical women's fitness club. The Curves process consist of strength and cardio fitness training. This circuit training program yields a full body workout due to the fact that...