If the leg rest height is too high (footplates too high), what happens?

If the leg rest height is too high (footplates too high), what happens?

• A. Excessive knee flexion
• B. Reduced knee flexion
• C. Increased ankle flexibility
• D. Decreased thigh pressure

Answer: (A)

Leg rest height changes the knee angle in a seated position. If the footplates are too high, the feet sit on a higher platform, so the knee must bend more to place the foot on that plate. This results in excessive knee flexion, since the knee is more bent than the neutral 90-degree position. If the footrests were too low, you’d see reduced knee flexion (the knee would be more extended). Increased ankle flexibility isn’t the direct effect of footrest height, and thigh pressure isn’t a primary outcome of elevating the footplates.

Leg rest height changes the knee angle in a seated position. If the footplates are too high, the feet sit on a higher platform, so the knee must bend more to place the foot on that plate. This results in excessive knee flexion, since the knee is more bent than the neutral 90-degree position.

If the footrests were too low, you’d see reduced knee flexion (the knee would be more extended). Increased ankle flexibility isn’t the direct effect of footrest height, and thigh pressure isn’t a primary outcome of elevating the footplates.