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Reproducibility analysis of upper limbs reachable workspace, and effects of acquisition protocol, sex and hand dominancy.

Abstract：

:None of the physical testing, nor the goniometers currently used to assess upper limb function have a high validity, sensitivity or reliability. The reachable workspace, i.e. the area covered by the farthest points a subject can reach by hand without moving his/her body, shows promise but has yet to be validated, particularly in terms of reproducibility. Therefore, this study aims to evaluate the reproducibility of the reachable workspace over a period of several weeks, and to assess the effects of two proposed acquisition protocols, as well as those of gender, and hand dominancy. Shoulder movements were recorded using a motion capture system on 10 female and 10 male healthy subjects during a random protocol, i.e. simply asking them to achieve the farthest points they could reach with their hands, and during a standardized protocol, i.e. asking them to perform predefined shoulder elevations while keeping their trunk and elbow straight. The standardized protocol was repeated 7 weeks later. Repeated measures showed no significant difference, good to excellent intraclass correlation coefficients (0.46-0.81) and small bias (0.0-1.2%). The random protocol provided significantly lower and more scattered values for the reachable workspace (80.0 ± 22.6% vs. 91.0 ± 8.1%, p = .004), whereas gender and hand-dominancy had no effect. This study showed that the reachable workspace was highly reliable over a period of 7 weeks and that both upper limbs provided similar results. It could be used to monitor various pathologies of the upper limbs and to assess treatment efficiency, using a subject's healthy limb as reference.

journal_name

J Biomech

journal_title

Journal of biomechanics

authors

Clément J,Raison M,Rouleau DM

doi

10.1016/j.jbiomech.2017.12.010

subject

Has Abstract

pub_date

2018-02-08 00:00:00

pages

58-64

eissn

0021-9290

issn

1873-2380

pii

S0021-9290(17)30717-0

journal_volume

68

pub_type

杂志文章

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