Muscle weakness does not influence gait in unilateral cerebral palsy: A muscle strength and
three-dimensional gait analysis study
Engelsk titel: Muscle weakness does not influence gait in unilateral cerebral palsy: A muscle strength and
three-dimensional gait analysis study
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Författare:
Riad, Jacques
;
Lidbeck, Cecilia
Email: Jacques.riad@vgregion.se
Språk: Eng
Antal referenser: 35
Dokumenttyp:
Artikel
UI-nummer: 15105243
Sammanfattning
Objective. The purpose of this cross-sectional study was to investigate muscle strength and
possible infl uence on gait in
high-functioning young individuals with unilateral cerebral palsy. Methods. Forty-four individuals with
a mean age of
17.5 years (range 13.0-24.0 years) and 23 matched controls participated. Maximal voluntary
isometric contraction was
measured in a muscle strength chair. Maximal moments (torque) and muscle work were calculated
from three-dimensional
gait analysis. Results. The mean maximal voluntary isometric strength in knee extensors on the
involved side was 1.56 Nm/kg,
compared to 2.4 Nm/kg in the control group ( p 0.001). Plantar fl exor strength was 1.29 compared to
2.30 Nm/kg
( p 0.001) and dorsifl exor strength was 0.18 compared to 0.47 Nm/kg ( p 0.001). Muscle strength did
not correlate with
muscle work performed during walking. The respective percentages of strength (Nm/kg) used during
walking in relation
to the strength chair measurements were 28% for knee extensors on the involved side, 102% for
plantar fl exors and 41%
for dorsifl exors. The corresponding numbers in the control group were 33%, 66% and 48%.
Conclusion. Muscle strength
is decreased in the knee and ankle on the involved side in unilateral cerebral palsy, although this
does not infl uence gait.