Postural adjustments during activities of daily living with an upper limb prosthesis

IF 1.8 3区医学 Q4 ENGINEERING, BIOMEDICAL

Clinical Biomechanics Pub Date : 2026-02-01 Epub Date: 2025-12-24 DOI:10.1016/j.clinbiomech.2025.106745

Mira E. Mutnick , Susannah M. Engdahl , Alec McKheen , Christina Lee , Deanna H. Gates

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引用次数: 0

Abstract

Background

People with upper limb difference (ULD) using prostheses often use compensatory trunk movements to perform activities of daily living (ADL). Compensatory movements may provide additional challenges for the postural control system to maintain balance. However, no prior studies have quantified postural adjustments during ADLs in this population. The purpose of this study was to determine if upper limb prosthesis users make larger postural adjustments during ADLs compared to people without ULD.

Methods

Nine individuals with ULD and nine without ULD performed unimanual and bimanual ADLs. Participants with ULD wore their prescribed body-powered or myoelectric prostheses. For each ADL, postural adjustments derived from center of pressure (CoP) position were compared across limbs (control, prosthetic, and intact). The impact of additional factors including prosthetic type, etiology, and duration of prosthetic use was also explored.

Findings

When using only the prosthesis or using it asymmetrically to the intact limb, people with ULD had larger CoP motion than people without ULD (p < 0.012). Exploratory comparisons found that during tasks that required grasping larger objects, body-powered prosthesis users and people with acquired amputation had larger CoP motion than myoelectric prosthesis users and people with congenital limb difference, respectively (g > 0.642). When performing a bimanual symmetric task, people who had owned their prosthesis longer had less CoP motion (p = 0.032).

Interpretation

Overall, the study demonstrates that individuals with ULD make larger postural adjustments when performing ADLs that incorporate their prosthesis. The extent of these differences is affected by prosthesis type, limb difference etiology, and duration of prosthesis ownership.

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使用上肢假体进行日常生活活动时的姿势调整

使用假肢的上肢差异患者通常使用代偿性躯干运动来进行日常生活活动。补偿性运动可能会给姿势控制系统维持平衡带来额外的挑战。然而，之前没有研究量化这一人群在adl期间的姿势调整。本研究的目的是确定上肢假体使用者在ADLs期间是否比没有ULD的人做出更大的姿势调整。方法9例ULD患者和9例无ULD患者分别进行单手和双手adl。患有ULD的参与者戴着他们规定的身体动力或肌电假肢。对于每个ADL，比较四肢（对照组、假体和完整肢）的压力中心（CoP）位置的姿势调整。其他因素的影响，包括假体类型，病因，和假体使用的持续时间也进行了探讨。当仅使用假体或将假体与完整肢体不对称使用时，有ULD的人比没有ULD的人有更大的CoP运动（p < 0.012）。探索性比较发现，在需要抓取较大物体的任务中，肢体动力假肢使用者和后天截肢者的CoP运动分别大于肌电假肢使用者和先天性肢体差异者（g > 0.642）。当执行双手对称任务时，拥有假体时间较长的人CoP运动较少（p = 0.032）。总体而言，该研究表明，患有ULD的个体在进行合并假体的adl时，会进行更大的姿势调整。这些差异的程度受假体类型、肢体差异病因和假体所有权持续时间的影响。

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

Clinical Biomechanics 医学-工程：生物医学

CiteScore

3.30

自引率

5.60%

发文量

189

审稿时长

12.3 weeks

期刊介绍： Clinical Biomechanics is an international multidisciplinary journal of biomechanics with a focus on medical and clinical applications of new knowledge in the field. The science of biomechanics helps explain the causes of cell, tissue, organ and body system disorders, and supports clinicians in the diagnosis, prognosis and evaluation of treatment methods and technologies. Clinical Biomechanics aims to strengthen the links between laboratory and clinic by publishing cutting-edge biomechanics research which helps to explain the causes of injury and disease, and which provides evidence contributing to improved clinical management. A rigorous peer review system is employed and every attempt is made to process and publish top-quality papers promptly. Clinical Biomechanics explores all facets of body system, organ, tissue and cell biomechanics, with an emphasis on medical and clinical applications of the basic science aspects. The role of basic science is therefore recognized in a medical or clinical context. The readership of the journal closely reflects its multi-disciplinary contents, being a balance of scientists, engineers and clinicians. The contents are in the form of research papers, brief reports, review papers and correspondence, whilst special interest issues and supplements are published from time to time. Disciplines covered include biomechanics and mechanobiology at all scales, bioengineering and use of tissue engineering and biomaterials for clinical applications, biophysics, as well as biomechanical aspects of medical robotics, ergonomics, physical and occupational therapeutics and rehabilitation.