What range of motion is typically required at the knee for effective stair climbing?

For effective stair climbing, a range of motion at the knee of approximately 100 degrees is generally considered adequate. This range allows for the necessary flexion and extension required to lift the foot onto the stair and support body weight during ascent and descent.

Stair climbing involves a sequence of movements that require the knee to flex sufficiently to allow the foot to clear the step, as well as extend to push the body upwards onto the next step. While some sources may suggest that greater ranges of motion may be beneficial for particular activities related to stair climbing, 100 degrees is typically sufficient for the average individual to perform this task comfortably and effectively.

Understanding this specific range helps in developing rehabilitation protocols and designing prosthetics or orthotics that support patients with mobility challenges, ensuring they can navigate stairs safely and efficiently.