Movement Behavior of High-Heeled Walking: How Does the Nervous System Control the Ankle Joint during an Unstable Walking Condition?

TY - JOUR

T1 - Movement Behavior of High-Heeled Walking

T2 - How Does the Nervous System Control the Ankle Joint during an Unstable Walking Condition?

AU - Alkjær, Tine

AU - Raffalt, Peter Christian

AU - Petersen, Nicolas Caesar

AU - Simonsen, Erik Bruun

N1 - CURIS 2012 5200 101

PY - 2012/5/16

Y1 - 2012/5/16

N2 - The human locomotor system is flexible and enables humans to move without falling even under less than optimal conditions. Walking with high-heeled shoes constitutes an unstable condition and here we ask how the nervous system controls the ankle joint in this situation? We investigated the movement behavior of high-heeled and barefooted walking in eleven female subjects. The movement variability was quantified by calculation of approximate entropy (ApEn) in the ankle joint angle and the standard deviation (SD) of the stride time intervals. Electromyography (EMG) of the soleus (SO) and tibialis anterior (TA) muscles and the soleus Hoffmann (H-) reflex were measured at 4.0 km/h on a motor driven treadmill to reveal the underlying motor strategies in each walking condition. The ApEn of the ankle joint angle was significantly higher (p

AB - The human locomotor system is flexible and enables humans to move without falling even under less than optimal conditions. Walking with high-heeled shoes constitutes an unstable condition and here we ask how the nervous system controls the ankle joint in this situation? We investigated the movement behavior of high-heeled and barefooted walking in eleven female subjects. The movement variability was quantified by calculation of approximate entropy (ApEn) in the ankle joint angle and the standard deviation (SD) of the stride time intervals. Electromyography (EMG) of the soleus (SO) and tibialis anterior (TA) muscles and the soleus Hoffmann (H-) reflex were measured at 4.0 km/h on a motor driven treadmill to reveal the underlying motor strategies in each walking condition. The ApEn of the ankle joint angle was significantly higher (p

U2 - 10.1371/journal.pone.0037390

DO - 10.1371/journal.pone.0037390

M3 - Journal article

C2 - 22615997

SN - 1932-6203

VL - 7

SP - 1

EP - 8

JO - P L o S One

JF - P L o S One

IS - 5

ER -