Which region is associated with overactive knee muscles? (biceps femoris short head, TFL)

• A. Biceps femoris (short head) and tensor fascia latae (TFL)
• B. Vastus medialis oblique
• C. Gluteus maximus
• D. Latissimus dorsi

Answer: (A)

The key idea is that overactive knee muscles commonly show up on the outside of the knee and thigh. The short head of the biceps femoris crosses the knee and helps with knee flexion and external rotation, while the tensor fasciae latae pulls on the iliotibial band that runs along the outside of the leg to the lateral knee. When these muscles are overactive, they can pull the knee outward and affect knee tracking and stability. So the best choice pairs muscles tied to that outer (lateral) knee region.

The other options don’t fit that lateral knee connection: the vastus medialis oblique is on the inner (medial) knee, gluteus maximus is a hip muscle, and latissimus dorsi is an upper-back muscle.