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Dev Med Child Neurol. 2016 Feb;58(2):167-72. doi: 10.1111/dmcn.12805. Epub 2015 May 20.

Construct validity and reliability of the Selective Control Assessment of the Lower Extremity in children with cerebral palsy.

Author information

1
Pediatric Rehab Research Group, Rehabilitation Center for Children and Adolescents, University Children's Hospital Zurich, Affoltern am Albis, Switzerland.
2
Regional Group Zurich Foundation Cerebral Palsy (RGZ), Zurich, Switzerland.
3
Rehabilitation Sciences, School of Health Sciences, Queen Margaret University, Edinburgh, UK.

Abstract

AIM:

Assessing impaired selective voluntary movement control in children with cerebral palsy (CP) has gained increasing interest. We investigated construct validity and intra- and interrater reliability of the Selective Control Assessment of the Lower Extremity (SCALE).

METHOD:

Thirty-nine children (21 males, 18 females) with spastic CP, mean age 12 years 6 months [range 6y 11mo-19y 9mo], Gross Motor Function Classification System (GMFCS) levels I to IV, participated. Differences in SCALE scores were determined on joint levels and between patients categorized according to their limb distribution and GMFCS levels. SCALE scores were correlated with the Fugl-Meyer Assessment, Manual Muscle Test, and Modified Ashworth Scale. To determine reliability, the SCALE was applied once and recorded on video.

RESULTS:

SCALE scores differed significantly between the less and more affected leg (p<0.001) and between most leg joints. Total SCALE scores differed significantly between GMFCS levels I and II. Correlations with Fugl-Meyer Assessment, Manual Muscle Test, and Modified Ashworth Scale were 0.88, 0.88, and -0.55 respectively. Intraclass correlation coefficients were all above 0.9, with the minimal detectable change below 2 points.

INTERPRETATION:

The SCALE appears to be a valid and reliable tool to assess selective voluntary movement control of the legs in children with spastic CP.

PMID:
25991061
DOI:
10.1111/dmcn.12805
[Indexed for MEDLINE]
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