Muscle mechanical advantage of human walking and running: implications for energy cost
Muscular forces generated during locomotion depend on an animal's speed, gait, and size and underlie the energy demand to power locomot...
Minimizing center of mass vertical movement increases metabolic cost in walking
A human walker vaults up and over each stance limb like an inverted pendulum. This similarity suggests that the vertical motion of a wa...
Mechanism of leg stiffness adjustment for hopping on surfaces of different stiffnesses
When humans hop in place or run forward, leg stiffness is increased to offset reductions in surface stiffness, allowing the global kine...
Mechanics of locomotion in lizards
Lizards bend their trunks laterally with each step of locomotion and, as a result, their locomotion appears to be fundamentally differe...
Maximum speed and mechanical power output in lizards
The goal of the present study was to test the hypothesis that maximum running speed is limited by how much mechanical power the muscula...
Low cost of locomotion in the banded Gecko: a test of the nocturnality hypothesis
This study tested the hypothesis that there has been an evolutionary increase in locomotor performance capacity at low temperature in n...
Locomotion. Just skip it
When four-legged animals want to move quickly they gallop -- a gait that was thought to have no equivalent in humans. But a new paper s...
Leg stiffness primarily depends on ankle stiffness during human hopping
When humans hop in place or run forward, they adjust leg stiffness to accommodate changes in stride frequency or surface stiffness. The...
Leg stiffness and stride frequency in human running
When humans and other mammals run, the body's complex system of muscle, tendon and ligament springs behaves like a single linear spring...
Interaction of leg stiffness and surfaces stiffness during human hopping
When mammals run, the overall musculoskeletal system behaves as a single linear 'leg spring'. We used force platform and kinematic meas...