When it comes to core strenght your hips are in control. More than 20 muscles cross, insert into or originate in the hips, all pulling, pushing, relaxing and contracting continuisally. Sedentary jobs or lifestyles create a muscle imbalance that can have an impact on the lumbar spine, shoulders and neck. If you sit all day, it causes your hip flexors to shorten and your abs andglutes to relax. Once you stand up, the tight hip flexors pull the pelvic forward, supporting the entire upper body, while the abs and glutes are still relaxing. A good workout routine should include hip strengthening exercises and teach you how to fire up your glutes. Side leg reaises a great, versatile move to build strong hips. You can do them standing up or lying down, sneak them in while watching TV or waiting in line. ?