Reproducibility of hand-held ankle dynamometry to measure altered ankle moment-angle characteristics in children with spastic cerebral palsy

被引：32

作者：

Benard, Menno R. ^{[1
,2
]}

Jaspers, Richard T. ^{[1
]}

Huijing, Peter A. ^{[1
]}

Becher, Jules G. ^{[2
]}

Harlaar, Jaap ^{[2
]}

机构：

[1] Vrije Univ Amsterdam, Fac Human Movement Sci, Res Inst Move, NL-1081 BT Amsterdam, Netherlands

[2] Vrije Univ Amsterdam, Med Ctr, Res Inst Move, Dept Rehabil Med, NL-1081 BT Amsterdam, Netherlands

来源：

CLINICAL BIOMECHANICS | 2010年 / 25卷 / 08期

关键词：

Children; Cerebral palsy; Hand-held ankle dynamometer; Joint stiffness; Moment-angle characteristics; GROSS MOTOR FUNCTION; PLANTAR FLEXORS; MOTION MEASURES; RELIABILITY; RANGE; GASTROCNEMIUS; MUSCLES;

D O I：

10.1016/j.clinbiomech.2010.04.010

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Background: In children with spastic cerebral palsy, the range of motion of the ankle joint is often. limited. Measurement of range of motion may be hampered by a non-rigid foot deformity. We constructed a hand-held instrument which allows measurements of static ankle angle and moment in children with cerebral palsy while correcting for foot deformity. This study aimed to test the reproducibility of the instrument and to use it for measuring ankle moment-angle characteristics in individual children who are typically developing and children with cerebral palsy. Methods: Ankle angles and moments were measured at five standardized positions in ten children who are typically developing and ten children with cerebral palsy. The intraclass correlation coefficient was calculated for test-retest reliability. For precision, the standard error of measurement and smallest detectable difference were determined. The ankle range of motion and the slope of the moment-angle curve were determined, both towards plantar flexion and dorsiflexion. Findings: The reproducibility study revealed a high reliability of the dynamometer at 5 repetitions (>0.97). Precision lies within 5 degrees for angle measurements and within 0.2 Nm for moment measurements. In the children with cerebral palsy, the range of motion towards dorsiflexion was 18 degrees lower and the slope of the moment-angle curve towards dorsiflexion was substantially higher. Interpretation: We developed a hand-held dynamometer which allows reliable and precise measurements of static ankle angle and moment in children with cerebral palsy. The hand-held dynamometer allows corrections of foot deformities and is qualified to reproducibly evaluate moment-angle characteristics in a clinical context. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：802 / 808

页数：7

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