Li Raymond C, Jasiewicz Jan M, Middleton James, Condie Peter, Barriskill Andrew, Hebnes Heidi, Purcell Brendan
School of Human Movement Studies, Centre for Health Research, Faculty of Health, Queensland University of Technology, Kelvin Grove, Queensland, Australia.
Arch Phys Med Rehabil. 2006 Mar;87(3):411-7. doi: 10.1016/j.apmr.2005.11.011.
To report the development and validation of a new hand-held muscle strength-testing device that is integrated with orientation sensors and designed to test the strength of major muscle groups at a given limb or joint position.
Design description and validation study.
University-based human movement facility.
Twenty-eight able-bodied, healthy subjects.
Not applicable.
A device was developed based on a hand-held force dynamometer with integrated orientation sensors. The validity and reliability (interrater, intertrial) of 5 maximum isometric contractions of hip flexion, knee extension, and ankle plantarflexion and dorsiflexion were assessed. The results were compared with those from an isokinetic dynamometer (KinCom).
The new manual muscle tester was highly reliable and valid in estimating muscle strength of the lower limbs. The coefficient of variation between trials of all movements was low, with a mean less than 10% (range, 3.7%-8.9%). The only significant difference in muscle strength between the new device and the isokinetic dynamometer was found for hip flexion.
The new hand-held muscle strength tester appears to be a reliable and valid clinical assessment tool that can be used to objectively assess muscle strength at particular limb positions and/or joint angles. This feature appears to represent a technical advance in portable muscle strength devices, providing comparable information to those obtained by isokinetic dynamometers at a fraction of the cost and size. However, the device needs to be validated in clinical populations, such as patients with spinal cord injury and stroke, in order to demonstrate its general clinical utility.
报告一种新型手持式肌肉力量测试设备的研发与验证情况，该设备集成了方向传感器，旨在测试给定肢体或关节位置处主要肌肉群的力量。
设计描述与验证研究。
大学人体运动设施。
28名身体健全的健康受试者。
不适用。
基于集成方向传感器的手持式测力计开发了一种设备。评估了髋部屈曲、膝部伸展以及踝部跖屈和背屈的5次最大等长收缩的有效性和可靠性（评定者间、试验间）。将结果与等速测力计（KinCom）的结果进行比较。
新型手动肌肉测试仪在估计下肢肌肉力量方面具有高度可靠性和有效性。所有运动试验间的变异系数较低，平均值小于10%（范围为3.7%-8.9%）。新型设备与等速测力计之间在肌肉力量方面仅发现髋部屈曲存在显著差异。
新型手持式肌肉力量测试仪似乎是一种可靠且有效的临床评估工具，可用于客观评估特定肢体位置和/或关节角度的肌肉力量。这一特性似乎代表了便携式肌肉力量设备的一项技术进步，能以成本和尺寸的一小部分提供与等速测力计获得的信息相当的信息。然而，该设备需要在临床人群中进行验证，如脊髓损伤和中风患者，以证明其一般临床效用。
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