Abstract
Lower extremity weakness has been documented in children with cerebral palsy (CP). However, the temporal characteristics of moment generation have not been characterized, and they may be important to function. This study tested ankle, knee, and hip flexion and extension moment generation capabilities in children with CP and in able-bodied children. Maximum voluntary isometric contractions (MVIC), the maximum rates of moment development and relaxation, and the time to produce and reduce the moments were quantified. Relationships between the temporal measures, Gross Motor Function Measure-66 (GMFM-66), and MVICs were also examined. Children with CP had significantly reduced MVICs, maximum development, and relaxation rates, and increased times to produce and reduce moments. The maximum rates of moment development and relaxation at some joints were correlated with the GMFM-66 and MVICs. These results suggest that both the magnitude and temporal characteristics of moment generation need to be targeted during therapeutic interventions for children with CP.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 800-809 |
| Number of pages | 10 |
| Journal | Muscle and Nerve |
| Volume | 39 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jun 2009 |
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Keywords
- Cerebral palsy
- Impairments
- Joint moment
- Lower extremity
- Weakness
ASJC Scopus subject areas
- Clinical Neurology
- Cellular and Molecular Neuroscience
- Physiology (medical)
- Physiology
Cite this
Temporal characteristics of lower extremity moment generation in children with cerebral palsy. / Downing, Andrea L.; Ganley, Kathleen J.; Fay, Deanne R.; Abbas, James J.
In: Muscle and Nerve, Vol. 39, No. 6, 06.2009, p. 800-809.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Temporal characteristics of lower extremity moment generation in children with cerebral palsy
AU - Downing, Andrea L.
AU - Ganley, Kathleen J.
AU - Fay, Deanne R.
AU - Abbas, James J.
PY - 2009/6
Y1 - 2009/6
N2 - Lower extremity weakness has been documented in children with cerebral palsy (CP). However, the temporal characteristics of moment generation have not been characterized, and they may be important to function. This study tested ankle, knee, and hip flexion and extension moment generation capabilities in children with CP and in able-bodied children. Maximum voluntary isometric contractions (MVIC), the maximum rates of moment development and relaxation, and the time to produce and reduce the moments were quantified. Relationships between the temporal measures, Gross Motor Function Measure-66 (GMFM-66), and MVICs were also examined. Children with CP had significantly reduced MVICs, maximum development, and relaxation rates, and increased times to produce and reduce moments. The maximum rates of moment development and relaxation at some joints were correlated with the GMFM-66 and MVICs. These results suggest that both the magnitude and temporal characteristics of moment generation need to be targeted during therapeutic interventions for children with CP.
AB - Lower extremity weakness has been documented in children with cerebral palsy (CP). However, the temporal characteristics of moment generation have not been characterized, and they may be important to function. This study tested ankle, knee, and hip flexion and extension moment generation capabilities in children with CP and in able-bodied children. Maximum voluntary isometric contractions (MVIC), the maximum rates of moment development and relaxation, and the time to produce and reduce the moments were quantified. Relationships between the temporal measures, Gross Motor Function Measure-66 (GMFM-66), and MVICs were also examined. Children with CP had significantly reduced MVICs, maximum development, and relaxation rates, and increased times to produce and reduce moments. The maximum rates of moment development and relaxation at some joints were correlated with the GMFM-66 and MVICs. These results suggest that both the magnitude and temporal characteristics of moment generation need to be targeted during therapeutic interventions for children with CP.
KW - Cerebral palsy
KW - Impairments
KW - Joint moment
KW - Lower extremity
KW - Weakness
UR - http://www.scopus.com/inward/record.url?scp=67049160472&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67049160472&partnerID=8YFLogxK
U2 - 10.1002/mus.21231
DO - 10.1002/mus.21231
M3 - Article
VL - 39
SP - 800
EP - 809
JO - Muscle and Nerve
JF - Muscle and Nerve
SN - 0148-639X
IS - 6
ER -