Evaluating a Wearable Solution for Measuring Lower Extremity Asymmetry During Landing.

IF 0.9 4区医学 Q4 REHABILITATION Physiotherapy Canada Pub Date : 2023-09-19 eCollection Date: 2023-09-01 DOI:10.3138/ptc-2021-0086

Anu M Räisänen, Lauren C Benson, Jackie L Whittaker, Carolyn A Emery

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Abstract

Purpose: Force plates can be used to monitor landing asymmetries during rehabilitation, but they are not widely available. Accelerometer-based wearable technology may be a more feasible solution. The purpose of this article was to determine the agreement between impact accelerations measured with force plates and accelerometer-derived measures of (1) centre of mass (COM) acceleration and (2) tibial acceleration asymmetries during bilateral landings.

Method: Participants completed three countermovement jumps (CMJ) and three squat jumps (SJ) on dual force plates with triaxial accelerometers attached to each tibia and lower back, near the COM. Bland and Altman 95% limits of agreement (95% LOA) were calculated.

Results: 19 adults (n = 11; 58% women, n = 8; 42% men) participated in the study. The mean differences between impact and COM accelerations were 0.24 g (95% LOA: -1.34 g to 1.82 g) and 0.38 g (95% LOA: -1.15 to 1.91 g) for the CMJ and SJ, respectively. The mean differences between the impact and tibial acceleration-based lower limb asymmetries in the CMJ and SJ were -6% (95% LOA: -32% to 19%) and 0% (95% LOA: -45% to 45%), respectively.

Conclusions: Our findings show acceptable agreement between impact acceleration and accelerometer-based COM acceleration and lack of agreement between impact accelerations and accelerometer-based tibial acceleration asymmetries. COM acceleration could be used to quantify landing impacts during rehabilitation, but we do not consider the accelerometer-based asymmetry measures to be a suitable alternative for force plate-based measures. Future work should focus on determining normative values for lower extremity asymmetries during landing tasks.

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评估着陆过程中测量下肢不对称性的可穿戴解决方案。

目的：测力板可用于监测康复过程中的着陆不对称性，但目前还没有广泛使用。基于加速度计的可穿戴技术可能是一个更可行的解决方案。本文的目的是确定用力板测量的冲击加速度与加速度计推导的（1）重心（COM）加速度和（2）双侧着地过程中胫骨加速度不对称的测量值之间的一致性。方法：参与者在双力板上完成了三次反跳（CMJ）和三次深蹲跳（SJ），每个胫骨和下背部都装有三轴加速度计，靠近COM。计算Bland和Altman 95%的一致性极限（95%LOA）。结果：19名成年人（n=11；58%的女性，n=8；42%的男性）参与了这项研究。CMJ和SJ的冲击加速度和COM加速度之间的平均差异分别为0.24 g（95%LOA:1.34 g至1.82 g）和0.38 g（95%LOA:1.15至1.91 g）。CMJ和SJ中基于冲击和胫骨加速度的下肢不对称之间的平均差异分别为-6%（95%LOA:-32%-19%）和0%（95%LOA:-45%-45%）。结论：我们的研究结果表明，冲击加速度和基于加速度计的COM加速度之间存在可接受的一致性，而冲击加速度和加速度计的胫骨加速度不对称性之间缺乏一致性。COM加速度可用于量化康复期间的着陆影响，但我们不认为基于加速度计的不对称测量是基于力板的测量的合适替代方案。未来的工作应侧重于确定着陆任务中下肢不对称的标准值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physiotherapy Canada REHABILITATION-

CiteScore

1.90

自引率

20.00%

发文量

审稿时长

>12 weeks

期刊介绍： Physiotherapy Canada is the official, scholarly, refereed journal of the Canadian Physiotherapy Association (CPA), giving direction to excellence in clinical science and reasoning, knowledge translation, therapeutic skills and patient-centred care. Founded in 1923, Physiotherapy Canada meets the diverse needs of national and international readers and serves as a key repository of inquiries, evidence and advances in the practice of physiotherapy. Physiotherapy Canada publishes the results of qualitative and quantitative research including systematic reviews, meta analyses, meta syntheses, public/health policy research, clinical practice guidelines, and case reports. Key messages, clinical commentaries, brief reports and book reviews support knowledge translation to clinical practice. In addition to delivering authoritative, original scientific articles and reports of significant clinical studies, Physiotherapy Canada’s editorials and abstracts are presented in both English and French, expanding the journal’s reach nationally and internationally. Key messages form an integral part of each research article, providing a succinct summary for readers of all levels. This approach also allows readers to quickly get a feel for ‘what is already known’ and ‘what this study adds to’ the subject. Clinician’s commentaries for key articles assist in bridging research and practice by discussing the article’s impact at the clinical level. The journal also features special themed series which bring readers up to date research supporting evidence-informed practice. The Canadian Physiotherapy Association (CPA) is the national professional association representing almost 15,000 members distributed throughout all provinces and territories. CPA’s mission is to provide leadership and direction to the physiotherapy profession, foster excellence in practice, education and research, and promote high standards of health in Canada.

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