The tensor fasciae latae muscle is located toward the front of the hip. The muscle contributes to hip pain and stiffness. It makes straightening the thigh at the hip difficult and painful.
iliotibial band syndrome
The vastus intermedius muscle can cause and contribute pain down the front of the thigh and knees. Pain increases when walking up an incline or stairs.
The piriformis muscle contributes to pain in the low back, buttocks, hip, and hip joint, pelvic area, and pain down the back of the thigh.
The gluteus minimus muscle can contribute to pain in the buttocks, hip, thigh, calf and ankle. Glute minimus dysfunction makes it difficult to cross legs.