What is a common characteristic of forward trunk lean during gait?

Forward trunk lean during gait is associated with increased energy expenditure. When an individual exhibits a forward trunk lean, it can alter the biomechanics of walking, leading to inefficiencies in movement. This posture may require more muscular effort to maintain balance and propel the body forward, thus increasing the overall energy cost of walking.

While some might think that forward trunk lean could improve balance, it often has the opposite effect by shifting the center of gravity, which can lead to instability. Additionally, it is typically not linked with reduced lumbar pain; in fact, such a posture might contribute to discomfort in the lumbar region due to the strain placed on the lower back as a result of altered mechanical loading. Therefore, increased energy expenditure is recognized as a common characteristic of such a gait pattern.