energetic cost
- Connecting the legs with a spring improves human running economy
Highlighted Article: Connecting the legs with a spring assists runners in swinging their legs, enabling them to take faster, shorter, more efficient strides.
- The metabolic cost of carrying a sexually selected trait in the male fiddler crab Uca pugilator
Summary: The large sexually selected claw of male fiddler crabs has no effect on the metabolic cost of locomotion during sustainable activity but may increase cost during strenuous, non-sustainable activity.
- The energetic cost of filtration by demosponges and their behavioural response to ambient currents
Summary: Filter feeding in demosponges is energetically costly, with some species showing active behavioural control over the amount of water they filter under different ambient current speeds.
- Determinants of preferred ground clearance during swing phase of human walking
Summary: The foot's ground clearance during each swing phase of walking may be explained by competing costs of lifting the foot versus scuffing it on the ground, modulated by movement variability.
- Mechanical and energetic consequences of reduced ankle plantar-flexion in human walking
Summary: Ankle push-off plays an important role of the energy expenditure of human walking, which can be explained by the mechanical work performed by the lower extremity joints.