(CNN) — If you have ever felt tension in the front of your hips after sitting too long, struggled with lower back pain or had difficulty touching your toes, your hip flexors may be to blame. These ...

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Editor’s note: Dana Santas, known as the “Mobility Maker,” is a certified strength and conditioning specialist and mind-body coach in professional sports, and is the author of the book “Practical ...

• Sartorius: As the longest muscle in the body, it runs from the hip to the shin and assists with hip flexion and external rotation. • Tensor fasciae latae: Located on the outside of your upper thigh, ...