One of the muscles that influences how well the pelvis and knee function is the rectus femoris, one of the thigh muscles that are also referred to as the quadriceps muscles. It crosses the hip joint, originating just below the tensor fascia lata (TFL), and inserts onto the kneecap along with all the other quadriceps muscles. When it's tight, it can cause the pelvis to tip forward (anterior pelvic tilt), which accentuates the effects of a tight TFL. In addition to knee and hip pain, these muscles are also implicated in back pain. The rectus femoris may also contribute to an abnormal resting position of the kneecap.
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Fixing You: Hip & Knee Pain: Self-treatment for IT band friction, arthritis, groin pain, bursitis, knee pain, PFS, AKPS, and other diagnoses
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.