Association between isometric muscle strength and gait joint kinetics in adolescents and young adults with cerebral palsy

A.J. Dallmeijer, R. Baker, K. Dodd, N. Taylor

    Research output: Contribution to JournalArticleAcademicpeer-review

    Abstract

    The purpose of this study was to determine the association between isometric muscle strength of the lower limbs and gait joint kinetics in adolescents and young adults with cerebral palsy (CP). Twenty-five participants (11 males) with bilateral spastic CP, aged 14-22 years (mean: 18.9, sd: 2.0. yr) and Gross Motor Function Classification System (GMFCS) level II (n=19) and III (n=6) were tested. Hand held dynamometry was used to measure isometric strength (expressed in N. m/kg) of the hip, knee, and ankle muscles using standardized testing positions and procedures. 3D gait analysis was performed with a VICON system to calculate joint kinetics in the hip, knee and ankle during gait. Ankle peak moments exceeded by far the levels of isometric strength of the plantar flexors, while the knee and hip peak moments were just at or below maximal isometric strength of knee and hip muscles. Isometric muscle strength showed weak to moderate correlations with peak ankle and hip extension moment and power during walking. Despite considerable muscle weakness, joint moment curves were similar to norm values. Results suggest that passive stretch of the muscle-tendon complex of the triceps surae contributes to the ankle moment during walking and that muscle strength assessment may provide additional information to gait kinetics. © 2010 Elsevier B.V.
    Original languageEnglish
    Pages (from-to)326-332
    JournalGait and Posture
    Volume33
    Issue number3
    DOIs
    Publication statusPublished - 2011

    Fingerprint

    Muscle Strength
    Cerebral Palsy
    Gait
    Ankle
    Hip
    Young Adult
    Joints
    Knee
    Muscles
    Walking
    Muscle Weakness
    Tendons
    Lower Extremity
    Hand

    Cite this

    Dallmeijer, A.J. ; Baker, R. ; Dodd, K. ; Taylor, N. / Association between isometric muscle strength and gait joint kinetics in adolescents and young adults with cerebral palsy. In: Gait and Posture. 2011 ; Vol. 33, No. 3. pp. 326-332.
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    Association between isometric muscle strength and gait joint kinetics in adolescents and young adults with cerebral palsy. / Dallmeijer, A.J.; Baker, R.; Dodd, K.; Taylor, N.

    In: Gait and Posture, Vol. 33, No. 3, 2011, p. 326-332.

    Research output: Contribution to JournalArticleAcademicpeer-review

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