For ROM of knee and ankle, which technique is correct?

• A. Support at the thigh; bend knee to about 90 degrees, then straighten; move ankle through flexion and extension; perform 5-10 repetitions
• B. Move ankle through flexion and extension
• C. Bend knee to about 90 degrees
• D. Do 20 repetitions minimum

Answer: (A)

Stabilizing the thigh provides a fixed proximal point so you can move the knee and ankle without the hip influencing the movement. Bend the knee to about 90 degrees, then straighten, and move the ankle through its full range by flexing and extending. Do 5–10 repetitions to observe smoothness, symmetry, and any pain or limitations, while keeping the motions controlled. This approach isolates the knee and ankle movements and uses a safe, practical repetition count; moving the ankle alone or simply bending the knee without addressing the full ankle motion, or doing too many repetitions, wouldn’t give an accurate or safe ROM assessment.