Interlimb coordination during locomotion: What can be adapted and stored?

Darcy S. Reisman, Hannah J. Block, Amy J Bastian

Research output: Contribution to journalArticle

Abstract

Interlimb coordination is critically important during bipedal locomotion and often must be adapted to account for varying environmental circumstances. Here we studied adaptation of human interlimb coordination using a split-belt tread-mill, where the legs can be made to move at different speeds. Human adults, infants, and spinal cats can alter walking patterns on a split-belt treadmill by prolonging stance and shortening swing on the slower limb and vice versa on the faster limb. It is not known whether other locomotor parameters change or if there is a capacity for storage of a new motor pattern after training. We asked whether adults adapt both intra- and interlimb gait parameters during split-belt walking and show aftereffects from training. Healthy subjects were tested walking with belts tied (baseline), then belts split (adaptation), and again tied (postadaptation). Walking parameters that directly relate to the interlimb relationship changed slowly during adaptation and showed robust aftereffects during postadaptation. These changes paralleled subjective impressions of limping versus no limping. In contrast, parameters calculated from an individual leg changed rapidly to accommodate split-belts and showed no aftereffects. These results suggest some independence of neural control of intra- versus interlimb parameters during walking. They also show that the adult nervous system can adapt and store new interlimb patterns after short bouts of training. The differences in intra- versus interlimb control may be related to the varying complexity of the parameters, task demands, and/or the level of neural control necessary for their adaptation.

Original languageEnglish (US)
Pages (from-to)2403-2415
Number of pages13
JournalJournal of Neurophysiology
Volume94
Issue number4
DOIs
StatePublished - Oct 2005

Fingerprint

Locomotion
Walking
Leg
Extremities
Gait
Nervous System
Healthy Volunteers
Cats

ASJC Scopus subject areas

  • Physiology
  • Neuroscience(all)

Cite this

Interlimb coordination during locomotion : What can be adapted and stored? / Reisman, Darcy S.; Block, Hannah J.; Bastian, Amy J.

In: Journal of Neurophysiology, Vol. 94, No. 4, 10.2005, p. 2403-2415.

Research output: Contribution to journalArticle

Reisman, Darcy S. ; Block, Hannah J. ; Bastian, Amy J. / Interlimb coordination during locomotion : What can be adapted and stored?. In: Journal of Neurophysiology. 2005 ; Vol. 94, No. 4. pp. 2403-2415.
@article{6904ce7a78504c57a3ddaea4458c4a86,
title = "Interlimb coordination during locomotion: What can be adapted and stored?",
abstract = "Interlimb coordination is critically important during bipedal locomotion and often must be adapted to account for varying environmental circumstances. Here we studied adaptation of human interlimb coordination using a split-belt tread-mill, where the legs can be made to move at different speeds. Human adults, infants, and spinal cats can alter walking patterns on a split-belt treadmill by prolonging stance and shortening swing on the slower limb and vice versa on the faster limb. It is not known whether other locomotor parameters change or if there is a capacity for storage of a new motor pattern after training. We asked whether adults adapt both intra- and interlimb gait parameters during split-belt walking and show aftereffects from training. Healthy subjects were tested walking with belts tied (baseline), then belts split (adaptation), and again tied (postadaptation). Walking parameters that directly relate to the interlimb relationship changed slowly during adaptation and showed robust aftereffects during postadaptation. These changes paralleled subjective impressions of limping versus no limping. In contrast, parameters calculated from an individual leg changed rapidly to accommodate split-belts and showed no aftereffects. These results suggest some independence of neural control of intra- versus interlimb parameters during walking. They also show that the adult nervous system can adapt and store new interlimb patterns after short bouts of training. The differences in intra- versus interlimb control may be related to the varying complexity of the parameters, task demands, and/or the level of neural control necessary for their adaptation.",
author = "Reisman, {Darcy S.} and Block, {Hannah J.} and Bastian, {Amy J}",
year = "2005",
month = "10",
doi = "10.1152/jn.00089.2005",
language = "English (US)",
volume = "94",
pages = "2403--2415",
journal = "Journal of Neurophysiology",
issn = "0022-3077",
publisher = "American Physiological Society",
number = "4",

}

TY - JOUR

T1 - Interlimb coordination during locomotion

T2 - What can be adapted and stored?

AU - Reisman, Darcy S.

AU - Block, Hannah J.

AU - Bastian, Amy J

PY - 2005/10

Y1 - 2005/10

N2 - Interlimb coordination is critically important during bipedal locomotion and often must be adapted to account for varying environmental circumstances. Here we studied adaptation of human interlimb coordination using a split-belt tread-mill, where the legs can be made to move at different speeds. Human adults, infants, and spinal cats can alter walking patterns on a split-belt treadmill by prolonging stance and shortening swing on the slower limb and vice versa on the faster limb. It is not known whether other locomotor parameters change or if there is a capacity for storage of a new motor pattern after training. We asked whether adults adapt both intra- and interlimb gait parameters during split-belt walking and show aftereffects from training. Healthy subjects were tested walking with belts tied (baseline), then belts split (adaptation), and again tied (postadaptation). Walking parameters that directly relate to the interlimb relationship changed slowly during adaptation and showed robust aftereffects during postadaptation. These changes paralleled subjective impressions of limping versus no limping. In contrast, parameters calculated from an individual leg changed rapidly to accommodate split-belts and showed no aftereffects. These results suggest some independence of neural control of intra- versus interlimb parameters during walking. They also show that the adult nervous system can adapt and store new interlimb patterns after short bouts of training. The differences in intra- versus interlimb control may be related to the varying complexity of the parameters, task demands, and/or the level of neural control necessary for their adaptation.

AB - Interlimb coordination is critically important during bipedal locomotion and often must be adapted to account for varying environmental circumstances. Here we studied adaptation of human interlimb coordination using a split-belt tread-mill, where the legs can be made to move at different speeds. Human adults, infants, and spinal cats can alter walking patterns on a split-belt treadmill by prolonging stance and shortening swing on the slower limb and vice versa on the faster limb. It is not known whether other locomotor parameters change or if there is a capacity for storage of a new motor pattern after training. We asked whether adults adapt both intra- and interlimb gait parameters during split-belt walking and show aftereffects from training. Healthy subjects were tested walking with belts tied (baseline), then belts split (adaptation), and again tied (postadaptation). Walking parameters that directly relate to the interlimb relationship changed slowly during adaptation and showed robust aftereffects during postadaptation. These changes paralleled subjective impressions of limping versus no limping. In contrast, parameters calculated from an individual leg changed rapidly to accommodate split-belts and showed no aftereffects. These results suggest some independence of neural control of intra- versus interlimb parameters during walking. They also show that the adult nervous system can adapt and store new interlimb patterns after short bouts of training. The differences in intra- versus interlimb control may be related to the varying complexity of the parameters, task demands, and/or the level of neural control necessary for their adaptation.

UR - http://www.scopus.com/inward/record.url?scp=24944512983&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=24944512983&partnerID=8YFLogxK

U2 - 10.1152/jn.00089.2005

DO - 10.1152/jn.00089.2005

M3 - Article

C2 - 15958603

AN - SCOPUS:24944512983

VL - 94

SP - 2403

EP - 2415

JO - Journal of Neurophysiology

JF - Journal of Neurophysiology

SN - 0022-3077

IS - 4

ER -