Re-examining the lower speed boundary of preferred coordination ratio constancy: estimator dependence and competing breakpoint regions

Background: The preferred coordination ratio (PCR), defined as step length divided by cadence, is approximately constant across a broad range of walking speeds in healthy adults, except at the slowest speeds.

Background: The preferred coordination ratio (PCR), defined as step length divided by cadence, is approximately constant across a broad range of walking speeds in healthy adults, except at the slowest speeds. A previous study reported its lower boundary at approximately 62 m/min…