Force tracking system for the assessment of grip force control in patients with neuromuscular diseases
Force tracking system for the assessment of grip force control in patients with neuromuscular diseases
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DOI：
10.1016/j.clinbiomech.2004.07.003
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发表时间：
2004-12-01
影响因子：
1.8
通讯作者：
Bajd, T
中科院分区：
文献类型：
--
作者：
Kurillo, G;Zupan, A;Bajd, T
背景。大多数手部功能评估方法包括最大自愿握力测量。通过捕获一段时间内的功能性握力，可以获得有关感觉运动控制的更多知识。跟踪方法已成功用于评估中风患者和帕金森病患者的握力控制。方法。提出了一种用于评估握力控制的新型跟踪系统。该系统由一个带有不同形状最终物体的握力测量装置组成，该装置被用作跟踪任务的输入，患者根据视觉反馈施加握力。对 20 名神经肌肉疾病患者和 9 名健康受试者的握力控制进行了评估。在五次抓握中分析了两项跟踪任务的表现。斜坡跟踪任务旨在评估握力和肌肉疲劳。窦跟踪任务用于评估周期性肌肉激活过程中的握力控制。结果。结果表明，在一些患者中，尽管肌肉明显无力，但这种疾病并未影响他们的握力控制。大多数患者在精确握力方面产生较大的跟踪误差，而健康受试者在测试的握力方面表现出较小的显着差异。解释。目前的研究调查了神经肌肉疾病患者的力量控制，在跟踪疾病进展时，检测运动表现的微小变化非常重要。与传统的握力测试相比，所提出的评估方法可以提供有关肌肉激活和疲劳的附加信息。 (C) 2004 Elsevier Ltd. 保留所有权利。
Background. The majority of hand functionality assessment methods consist of the maximal voluntary grip force measurement. Additional knowledge on sensory-motor control can be obtained by capturing functional grip force in a time frame. Tracking methods have been successfully used for the assessment of grip force control in stroke patients and patients with Parkinson's disease.Methods. A novel tracking system for the evaluation of grip force control is presented. The system consists of a grip-measuring device with the end-objects of different shapes which was used as input to a tracking task where the patient applied the grip force according to the visual feedback. The grip force control was assessed in 20 patients with neuromuscular diseases and 9 healthy subjects. The performance of two tracking tasks was analysed in five grips. The ramp-tracking task was designed to assess the grip strength and muscle fatigue. The sinus-tracking task was used to evaluate grip force control during periodic muscle activation.Findings. The results suggest that in some patients the disease did not affect their grip force control despite evident muscular weakness. Most patients produced larger tracking errors in precision grip while the healthy subjects showed less significant differences in performance among the grips tested.Interpretation. The current study investigated force control in patients with neuromuscular diseases where detection of small changes in motor performance is important when following the progress of disease. The presented evaluation method can provide additional information on muscle activation and fatigue as compared to traditional grip strength testing. (C) 2004 Elsevier Ltd. All rights reserved.