Effects of Treadmill Running Velocity on Lower Extremity Coordination Variability in Healthy Runners
Human Movement Science
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With a growing interest in coordination variability and its role in endurance running, it is important to identify the effect of running velocity. The purpose of the current study was to investigate the effect of treadmill running velocity on the coordination and variability of coordination of lower extremity couplings of healthy runners during stance. Fourteen apparently healthy runners ran on a split-belt force instrumented treadmill at five different velocities. Continuous relative phase (CRP) was used to quantify coordination and variability (vCRP) between lower extremity couplings of the right limb (thigh-shank, thigh-foot, shank-foot) during three phases of stance (loading, mid stance, and propulsion). Multiple one-way repeated measure ANOVAs were conducted to identify differences among velocity conditions at each phase and discrete events (initial foot contact, peak knee flexion during stance, and toe-off). Thigh internal/external rotation (IR/ER)-Shank abduction/adduction (AB/AD) coupling was different during the propulsive phase (p = 0.02)... See full text for full abstract.
Dynamical systems; Stride frequency; Kinematics; Gait patterns
Bailey, J. P.,
Silvernail, J. F.,
Dufek, J. S.,
Mercer, J. A.
Effects of Treadmill Running Velocity on Lower Extremity Coordination Variability in Healthy Runners.
Human Movement Science, 61