Increases in movement variability have previously been observed to be a hallmark property of coordination changes between coupled oscillators that occur as movement frequency is scaled. Prior research on the walk-run transition in human locomotion has also demonstrated increases in variability around the transition region, supporting predictions of nonequilibrium phase transitions (Diedrich & W...

BACKGROUND Longitudinal analyses of participants with a history of lateral ankle sprain are lacking. This investigation combined measures of inter-joint coordination and stabilometry to evaluate eyes-open (condition 1) and eyes-closed (condition 2) static unilateral stance performance in a group of participants, 6-months after they sustained an acute, first-time lateral ankle sprain in comparis...

The Law of Intersegmental Coordination is a well known kinematic law that correlates between the elevation angles of the segments of the lower-limb (thigh, shank, foot) during locomotion. This correlation reduces the degree of freedom of the angles to two and hence, the elevation angles covary along a plane in the angular space. The properties of the plane that constrains the time course of the...

about the ability of salamanders to regenerate truncated limbs. This project has benefitted from reviews by Linda Atkinson, Robert Gibbs, Charles Hallahan, and Lorin Kusmin of ERS, and Paul Siegel of the Census Bureau. Mistakes and errors of judgment are the author’s alone. The views and opinions expressed in this paper do not necessarily reflect the views of the Economic Research Service or th...

BACKGROUND The purpose of this study was to determine the effect of smoking on speed and coordination of upper-limb movement. METHODS A total of 62 healthy, young individuals were randomly selected for participation in this study. Out of total subjects, 31 were smokers with a mean age 20.84 years and 31 were non-smokers with a mean age 19.97 years and placed in group A and group B, respective...

Quadrupeds exhibit versatile gait patterns (walk, trot, pace, bound, etc.) in response to locomotion speed [1, 2]. These locomotor patterns are generated via the coordination between limb movements, i.e., interlimb coordination. However, the interlimb coordination mechanism for the generation of such locomotor patterns requires further investigation because it has not been clarified thus far.