Summary

使用手持测功机测量癌症相关疲劳的马达方面

Published: February 20, 2020
doi:

Summary

开发了简单易懂的方法,以客观和定量地测量癌症相关疲劳的运动方面。我们详细介绍了使用简单的手柄装置管理身体疲劳测试的方法,以及计算疲劳指数的方法。

Abstract

癌症相关疲劳 (CRF) 通常报告患者在接受癌症治疗期间和之后。目前的通用报告报告单依赖于自我报告问卷,这些问卷存在报告和召回偏差。使用手持测功机(或手握装置)的客观测量在最近的研究中显示,这与主观自我报告的疲劳评分有显著关联。然而,在文献中存在着手柄疲劳试验和疲劳指数计算的变化。缺乏标准化的方法限制了在临床和研究环境中使用手柄疲劳测试。本研究提供了物理疲劳试验和疲劳指数计算的详细方法。这些方法应补充现有的自我报告的疲劳问卷,并帮助临床医生客观和定量地评估疲劳症状的严重程度。

Introduction

癌症相关疲劳(CRF)是一种普遍和衰弱的症状,报告多达80%的癌症患者1。国家综合癌症网络(NCCN)将CRF定义为一种持续的身体、情感和认知疲惫感通用报告制的主要区别在于与近期活动不成比例,以及通用报告一无法通过休息1来缓解。因此,CRF严重影响了患者参与日常活动及其与健康有关的生活质量1。

目前对通用报告单的评估主要依靠自我报告问卷2。因此,使用自我报告测量的症状严重性受到召回和报告偏差的影响,并可能受用于评估 CRF3的特定调查问卷和截止分数的影响。作为一个多维结构,CRF的物理维度已被证明与日常活动变化和白天午睡的需求相关而CRF对身体机能的影响则较少。迄今为止,CRF仍然是一个诊断不足和治疗不足的症状,没有明确界定的基础机制或治疗选项1。为了更好地了解这种使人衰弱的状况,越来越需要客观和定量地衡量通用报告标准(CRF)及其尺寸。

身体疲劳是指在持续的收缩活动5期间无法维持所需的力量。随后由于无法执行日常任务(例如,携带购物袋、提和搬运物品)而影响日常功能,这严重影响了与健康有关的生活质量,特别是在老年人中,并造成未来6、7日的伤害。已经开发了各种工具来量化身体损伤,包括身体性能测试,如6分钟步行测试(6MWT)和坐到台测试(STS),以及可穿戴的体力活动监测器,如运动仪和健身跟踪器8,9,10。物理性能测试,如6MWT和STS易于管理,不需要特殊设备10。然而,这种测试的可靠性和成功要求临床医生培训和后勤要求,如30米的走廊10。可穿戴活动监测器允许自动数据收集和纵向症状监测11。然而,这些活动监测器通常需要佩戴多天,患者依从性可能是一个问题11。此外,使用活动监测器收集的大量数据可能很难处理,因此很难获得具有临床意义的信息11。

手持式测功机,或用于计算机辅助数据采集的仪器手柄装置,是一种测量握力的便携式设备。手持式测能已用于测试运动疲劳和损伤的疾病条件,通常涉及运动系统,包括运动神经元和肌肉问题12。最近的工作已经证明,自报的主观CRF分数与使用手柄静态疲劳测试13测量的运动疲劳之间存在关联。手柄疲劳测试特别适合临床使用,因为它们的可靠性和时间效率,需要几分钟才能完成14,15。此外,手柄疲劳测试可以预先编程,确保数据可重复性 7。管理手柄测试需要测试管理员的最少培训,并且在给定标准化协议的情况下,可以在临床环境中轻松实现。将自报疲劳问卷与手柄疲劳测试结合使用,应可为临床医生提供额外的工具,用于筛查、监测和管理癌症患者的疲劳症状。

缺乏标准化的共识方法限制了16号诊所采用手柄疲劳测试。在目前的工作中,我们概述了使用手持测功机客观地量化电机疲劳的三种不同的方法。应在每个癌症人群中测试每种方法的效用,以确保其准确区分疲劳和非疲劳的受试者。我们还概述了计算每个手柄疲劳测试的疲劳指数的方法。这项工作的目的是提供一个全面的工具包,以补充自报问卷,并准确和客观地标准化通用报告F的物理绩效测量。

Protocol

目前的研究(NCT00852111)得到了国家卫生研究院机构审查委员会(IRB)的批准。参加这项研究的受试者年龄在18岁或以上,被诊断患有非转移性前列腺癌,有或没有事先进行前列腺切除术,并计划在NIH临床放射肿瘤诊所接受外束放射治疗中心。如果潜在参与者患有可能导致严重疲劳的渐进性疾病、过去五年内患有精神疾病、未纠正甲状腺功能减退或贫血,或患有第二次恶性肿瘤,则被排除在外。使…

Representative Results

代表力(kg)与时间(s)的跟踪如图1所示。在静态疲劳测试期间,受试者通常在2~3秒23内达到最大强度(F最大值)。根据以前的研究3,对受试者的自我报告疲劳进行了测量。3 s 内缺少 Fmax (±10% MVIC) 表示工作量不足23。为了防止这个问题,应该提供口头鼓励。报告疲劳(黑线)和无疲劳(灰线)的受?…

Discussion

在这里,我们提供三种不同的方法来测量CRF的物理尺寸。使用手持测功机进行电机疲劳测试简单且易于适应临床使用。由于文献中存在许多测试变体,我们的目标是提供标准化方法来管理这些测试,并减少对临床医生进行广泛的面对面培训的需求。

虽然本研究中概述的疲劳测试证明测试可靠性良好但遵守该协议将确保数据可重复…

Disclosures

The authors have nothing to disclose.

Acknowledgements

这项研究得到了马里兰州贝塞达国家卫生研究院国家护理研究所内学研究部的充分支持。

Materials

Quantitative Muscle Assessment application (QMA) Aeverl Medical QMA 4.6 Data acquisition software. NOTE: other brands/models can be used as long as the software records force over time.
QMA distribution box Aeverl Medical DSTBX Software distribution box which connects the handgrip to the software.
Baseline hand dynamometer with analog output Aeverl Medical BHG Instrumented handgrip device with computer assisted data acquisition. NOTE: other brands/models can be used as long as the instrument measures force over time

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Cite This Article
Feng, L. R., Regan, J., Shrader, J., Liwang, J., Alshawi, S., Joseph, J., Ross, A., Saligan, L. Measuring the Motor Aspect of Cancer-Related Fatigue using a Handheld Dynamometer. J. Vis. Exp. (156), e60814, doi:10.3791/60814 (2020).

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