... this is consistent across different power outputs where the self-selected cadence (SSC) varies. We examined the effect of cadence and external power requirements on muscle neuromechanics and joint power during cycling. VL fascicle shortening velocity, muscle activation and joint-specific power were measured during...

... energetics ground reaction force kinematics joint moments joint power work Locomotion is an important aspect of human life. For aerobic, steady-state locomotion, people subconsciously select locomotion patterns that are most economical in terms of energy usage so that energy efficiency...

... length metabolic cost exoskeleton ankle human inverse dynamics joint power efficiency During human walking, a substantial amount of mechanical work is performed on the center of mass during the step-to-step transition( Kuo et al., 2005 ). Donelan et al. used force platforms under each limb...

... and hip extension are positive. * Author for correspondence (e-mail: gsawicki@umich.edu ) 19 2 2008 © The Company of Biologists Limited 2008 2008 locomotion walking metabolic cost exoskeletons ankle human efficiency inverse dynamics joint power Humans are adept...

... and ankle. Muscle work was derived as the area under the joint power vs time curves and was partitioned into positive, negative and net components. Dependent t -tests were used to compare positive and negative work in level walking and net joint work between ascent and descent gaits on the ramp and stairs...

... will show that the work for accelerating or decelerating is delivered at the ankle joint, transferred from the hip and knee via the relatively isometric contraction of ankle extensors. Fig. 8. Total joint power (tot, solid colored lines), external joint power (ext,dotted colored lines) and summed...