The Contribution of Frontal Hip Power to Slope Walking

3. Eng Winter. J Biomech. 1995. 4. Hong, et al. Gait Posture. 2015. • More than 30% of the older population aged above 65 in the USA fall at least once during a year [1]. • The risk of falling in the elderly is increased when facing increased challenges to balance control while walking on uneven terrains such as up stairs and slopes [2]. • The task demands for slope walking result in changes in lower limb kinematics and kinetics, but little is known about how power in the frontal plane changes with slope. During level walking, 23% of the total hip work is done in the frontal plane [3]. • It is reasonable to expect that slope walking will place greater demands on the hip in the frontal plane to control the pelvis and trunk against gravitational forces in downslope walking, and to help lift the trunk in upslope walking.