The effect of walking speed on hamstrings length and lengthening velocity in children with spastic cerebral palsy

M.M. van der Krogt, C.A.M. Doorenbosch, J. Harlaar

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Children with cerebral palsy often walk with reduced knee extension in terminal swing, which can be associated with short length or slow lengthening velocity of hamstrings muscles during gait. This study investigated the role of two factors that may contribute to such short and slow hamstrings: walking speed and spasticity. 17 children with spastic cerebral palsy and 11 matched typically developing children walked at comfortable, slow, and fast walking speed. Semitendinosus muscle-tendon length and velocity during gait were calculated using musculoskeletal modeling. Spasticity of the hamstrings was tested in physical examination. Peak hamstrings length increased only slightly with walking speed, while peak hamstrings lengthening velocity increased strongly. After controlling for these effects of walking speed, spastic hamstrings acted at considerably shorter length and slower velocity during gait than normal, while non-spastic hamstrings did not (all P
Original languageUndefined/Unknown
Pages (from-to)640-644
JournalGait and Posture
Volume29
Issue number4
DOIs
Publication statusPublished - 2009

Cite this

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title = "The effect of walking speed on hamstrings length and lengthening velocity in children with spastic cerebral palsy",
abstract = "Children with cerebral palsy often walk with reduced knee extension in terminal swing, which can be associated with short length or slow lengthening velocity of hamstrings muscles during gait. This study investigated the role of two factors that may contribute to such short and slow hamstrings: walking speed and spasticity. 17 children with spastic cerebral palsy and 11 matched typically developing children walked at comfortable, slow, and fast walking speed. Semitendinosus muscle-tendon length and velocity during gait were calculated using musculoskeletal modeling. Spasticity of the hamstrings was tested in physical examination. Peak hamstrings length increased only slightly with walking speed, while peak hamstrings lengthening velocity increased strongly. After controlling for these effects of walking speed, spastic hamstrings acted at considerably shorter length and slower velocity during gait than normal, while non-spastic hamstrings did not (all P",
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The effect of walking speed on hamstrings length and lengthening velocity in children with spastic cerebral palsy. / van der Krogt, M.M.; Doorenbosch, C.A.M.; Harlaar, J.

In: Gait and Posture, Vol. 29, No. 4, 2009, p. 640-644.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - The effect of walking speed on hamstrings length and lengthening velocity in children with spastic cerebral palsy

AU - van der Krogt, M.M.

AU - Doorenbosch, C.A.M.

AU - Harlaar, J.

PY - 2009

Y1 - 2009

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AB - Children with cerebral palsy often walk with reduced knee extension in terminal swing, which can be associated with short length or slow lengthening velocity of hamstrings muscles during gait. This study investigated the role of two factors that may contribute to such short and slow hamstrings: walking speed and spasticity. 17 children with spastic cerebral palsy and 11 matched typically developing children walked at comfortable, slow, and fast walking speed. Semitendinosus muscle-tendon length and velocity during gait were calculated using musculoskeletal modeling. Spasticity of the hamstrings was tested in physical examination. Peak hamstrings length increased only slightly with walking speed, while peak hamstrings lengthening velocity increased strongly. After controlling for these effects of walking speed, spastic hamstrings acted at considerably shorter length and slower velocity during gait than normal, while non-spastic hamstrings did not (all P

U2 - 10.1016/j.gaitpost.2009.01.007

DO - 10.1016/j.gaitpost.2009.01.007

M3 - Article

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SP - 640

EP - 644

JO - Gait and Posture

JF - Gait and Posture

SN - 0966-6362

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