I’m a runner and started experiencing some familiar tightness in my hip and started getting worse everyday I ran. It’s always gotten sore after running for a long extent for the last 4 years or so. I’m glad I found this page because all of these stretches helped me realize what needed to be stretched and how tight I really was! I hope this will fix my overwhelming soreness. Thank you!

Once you know where each muscle attaches you can identify specific weakness by designing exercises that target a smaller group of muscles or positions instead of all of them at once. To know which ones are tight or weak strengthen your knowledge of the anatomy of hip flexion and function of the various muscles. Then, design exercises that target each muscle more independently to explore the strength of each one. This is often called corrective exercise.
Other muscles that can be recruited to assist with hip flexion include the tensor fascia latae (TFL), the pectineus, the adductors, the gracilis, and the anterior aspects of the gluteus medius and the gluteus minimus. The contribution of these secondary hip flexors largely depends on the position of the hip at the time at which movement is initiated.
The pectineus is an accessory hip flexor. This short muscle originates from the front of the pelvis, crosses the hip joint and inserts near the top of the thighbone. In addition to hip flexion, the pectineus works with other muscles to move your thigh inward. The pectineus may be involved in groin strains, which occur commonly among players of sports that require rapid acceleration and position changes.

Luckily, you don’t have to quit your day job or forgo spin class to loosen them up. Simply stretching those hips can get your body back in alignment, increase your mobility (and thus your exercise performance) and maybe even ease pesky back pain, Moore says. “Given the amount of time we sit [each] day and the stress we put our bodies under, hip-opening moves are a necessary party of our daily routine.”