Coordination between upper- and lower-limb movements is different during overground and treadmill walking.

摘要: Locomotion studies employ either treadmill (TW) or overground walking (OW), considering that differences between them are negligible. The present study tests this notion by comparing coordination upper- and lower-limb movements in healthy individuals during OW TW at matched speeds. Results indicated induced a higher cadence, which highly influenced interlimb coordination, terms of frequency coupling relative phase arm thigh motion. At low speed, the 2:1 pattern (double swing per stride) displayed lower incidence compared to OW, was correlated with sagittal acceleration shoulders, twice stride frequency, former condition. occurrence TW, moreover, preferential adoption cadence exceeding 80% arm’s resonant whereas involved below threshold. also ipsilateral swinging smaller relation an earlier maximum extension, shortened stance phase, increased cadence. These findings suggest arm–leg is different difference can be mainly ascribed condition-specific setting central mechanisms for scaling controlling dynamic axial posture (sagittal shoulder acceleration), and, possibly, maintaining inter-limb synchrony. Awareness “motor set” critical if data from two paradigms used physiological patho-physiological studies.