What is the knee extension requirement for normal gait?

During normal gait, full knee extension is required to ensure that the leg can properly propel the body during the stance phase. The knee must be straightened to a fully extended position at the end of the swing phase, allowing the foot to contact the ground in a stable manner. This full extension is crucial for providing adequate stability and support as the body transitions through the gait cycle.

Having the knee extended fully also aids in effective load bearing, which is essential in maintaining balance and transferring weight efficiently. If the knee is unable to reach full extension, it can lead to compensatory mechanisms that may negatively affect gait mechanics, stability, and overall efficiency of movement. Therefore, full knee extension is critical for normal walking and mobility.