Todd McCullough (TMAC) is the founder of TMAC FITNESS. TMAC FITNESS’ mission is to assist in creating a culture that is conscious of the body and the world in which we live. Check out his newest mindbodygreen class, Total Body Workout: How to Strengthen Your Core, Tone Your Arms & Improve Your Flexibility.
It's so simple: A yoga squat. It's a great exercise to open up your hip flexors after sitting all day. I recommend my clients get up from their desks every hour, go for a short walk, and then do a quick yoga squat. Try to do it a few times a day and you'll notice your lower back and hips will start feeling less tight.