Analysis of rapid stopping during human walking

Journal of Neurophysiology
K Hase, R B Stein

Abstract

The mechanisms involved in rapidly terminating human gait were studied. Subjects were asked to walk at a comfortable speed and to stop walking as soon as they felt an electrical stimulus to the superficial peroneal nerve. This simulated hitting an obstacle with the top of the foot. Stimuli were presented repeatedly at random during a 20-min period of walking. Electromyograms and joint angular movements of the right leg and forces under both feet were recorded. The step cycle was divided into 16 parts, and the responses to stimuli in each part were analyzed separately. Subjects generally stopped with the right foot in front of the left or vice-versa, depending on when the stimulus was applied in the step cycle. There was also a transition region in which subjects would rise up on their toes and either back down or take one more quick, short forward step. Three different mechanisms were used to produce a stop. 1) An extension synergy in the swing leg was initiated just before this leg hit the ground to brake the forward momentum of the body. 2) The push-off phase of the stance leg was inhibited to reduce the forward thrust and maintain the stance leg on the ground behind the body. 3) If these mechanisms were insufficient, the bod...Continue Reading

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Sep 13, 2008·Movement Disorders : Official Journal of the Movement Disorder Society·Alison R OatesFay B Horak
Mar 1, 2012·Journal of Geriatric Physical Therapy·Mark D BishopKathye Light
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Jan 12, 2013·The Cerebellum·Mariano SerraoFrancesco Pierelli
Mar 28, 2018·Bioinspiration & Biomimetics·Yasuyuki Suzuki, Hartmut Geyer
Aug 6, 2004·Journal of Neurophysiology·A R OatesM A Greig
Dec 24, 2004·Journal of Neurophysiology·A M SchillingsJ Duysens
Jan 20, 2011·European Journal of Applied Physiology·Malgorzata KlassJacques Duchateau
Oct 24, 2013·Journal of Strength and Conditioning Research·Ryo TominagaTakashi Kurokawa
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Jul 11, 2006·Perceptual and Motor Skills·M J D TaylorP Dabnichki
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Apr 12, 2000·Journal of Neurophysiology·A M SchillingsJ Duysens
Mar 30, 2007·Journal of Neurophysiology·Marleen H van der LindenJacques Duysens
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Jan 12, 2011·Experimental Brain Research·Paulina J M BankC E Peper
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