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Locomotor strategies in response to altered lower limb segmental mechanical properties

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Title: Locomotor strategies in response to altered lower limb segmental mechanical properties
Authors: Singer, Jonathan C.1, Noble, Jeremy W.1, Prentice, Stephen D. sprentic@uwaterloo.ca
Source: Human Movement Science. Dec2011, Vol. 30 Issue 6, p1199-1209. 11p.
Subjects: Leg, Biomechanics, Musculoskeletal system, Human locomotion, Anthropometry, Walking, Kinematics, Body movement
Abstract: Abstract: The present study sought to use stilt walking as a model to uncover modifications to gait dynamics caused by changes in lower limb anthropometrics. We examined 10 novice and 10 expert stilt walkers, each walking with and without stilts, to determine the specific adaptations brought about by experience. Three-dimensional kinematics and force platform data were used to calculate the intersegmental forces, net joint moments and moment powers at the ankle, knee and hip. Spatio-temporal data were computed to aid the interpretation of these data. Non-dimensional scaling was used to facilitate comparison between stilt- and normal-walking. In general, the stilts induced largely the same alterations in the locomotor patterns of both novices and experts, which did not allow for the conclusion that the experts employed locomotor dynamics that were better suited to the challenges imposed by alterations to limb length, mass and mass moment of inertia induced by the stilts. Nevertheless, the experts exhibited a lesser reduction in dimensionless stride length and velocity and generated larger concentric knee flexor and hip extensor powers, relative to the novices, which may be indicative of enhanced dynamic stability control. [Copyright &y& Elsevier]
Copyright of Human Movement Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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PubType: Academic Journal
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  Data: Locomotor strategies in response to altered lower limb segmental mechanical properties
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  Data: <searchLink fieldCode="AR" term="%22Singer%2C+Jonathan+C%2E%22">Singer, Jonathan C.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Noble%2C+Jeremy+W%2E%22">Noble, Jeremy W.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Prentice%2C+Stephen+D%2E%22">Prentice, Stephen D.</searchLink><i> sprentic@uwaterloo.ca</i>
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  Data: <searchLink fieldCode="JN" term="%22Human+Movement+Science%22">Human Movement Science</searchLink>. Dec2011, Vol. 30 Issue 6, p1199-1209. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Leg%22">Leg</searchLink><br /><searchLink fieldCode="DE" term="%22Biomechanics%22">Biomechanics</searchLink><br /><searchLink fieldCode="DE" term="%22Musculoskeletal+system%22">Musculoskeletal system</searchLink><br /><searchLink fieldCode="DE" term="%22Human+locomotion%22">Human locomotion</searchLink><br /><searchLink fieldCode="DE" term="%22Anthropometry%22">Anthropometry</searchLink><br /><searchLink fieldCode="DE" term="%22Walking%22">Walking</searchLink><br /><searchLink fieldCode="DE" term="%22Kinematics%22">Kinematics</searchLink><br /><searchLink fieldCode="DE" term="%22Body+movement%22">Body movement</searchLink>
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  Data: Abstract: The present study sought to use stilt walking as a model to uncover modifications to gait dynamics caused by changes in lower limb anthropometrics. We examined 10 novice and 10 expert stilt walkers, each walking with and without stilts, to determine the specific adaptations brought about by experience. Three-dimensional kinematics and force platform data were used to calculate the intersegmental forces, net joint moments and moment powers at the ankle, knee and hip. Spatio-temporal data were computed to aid the interpretation of these data. Non-dimensional scaling was used to facilitate comparison between stilt- and normal-walking. In general, the stilts induced largely the same alterations in the locomotor patterns of both novices and experts, which did not allow for the conclusion that the experts employed locomotor dynamics that were better suited to the challenges imposed by alterations to limb length, mass and mass moment of inertia induced by the stilts. Nevertheless, the experts exhibited a lesser reduction in dimensionless stride length and velocity and generated larger concentric knee flexor and hip extensor powers, relative to the novices, which may be indicative of enhanced dynamic stability control. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Human Movement Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.humov.2010.09.004
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      – Code: eng
        Text: English
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        PageCount: 11
        StartPage: 1199
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      – SubjectFull: Leg
        Type: general
      – SubjectFull: Biomechanics
        Type: general
      – SubjectFull: Musculoskeletal system
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      – SubjectFull: Human locomotion
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      – SubjectFull: Anthropometry
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      – SubjectFull: Walking
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      – SubjectFull: Body movement
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      – TitleFull: Locomotor strategies in response to altered lower limb segmental mechanical properties
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            NameFull: Singer, Jonathan C.
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            NameFull: Noble, Jeremy W.
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              M: 12
              Text: Dec2011
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              Y: 2011
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