Matur Fırat, Alnamroush Fatma, Büyüksaraç Bora
Biomedical Engineering, Bahçeşehir University, Çırağan Caddesi Osmanpaşa Mektebi Sokak No: 4-6 Beşiktaş, İstanbul, 34353, Turkey.
Med Biol Eng Comput. 2025 May;63(5):1427-1433. doi: 10.1007/s11517-024-03280-z. Epub 2025 Jan 11.
This study aims to understand the impact of backpack carriage, a regular activity for many, on back muscles and joint mobility during walking so that clinicians can develop strategies or products to ensure individuals' safety and well-being. Surface electromyography (EMG) and XSENS Awinda motion capture systems were used to analyze the effects of carrying a backpack (12% of body weight) on erector spinae and multifidus muscles, as well as spinal, hip, knee, and ankle joints. Subjects walked at 4 km/h on flat and inclined surfaces. Paired t-tests compared backpack loads to baseline measurements. Carrying a backpack reduced activation levels in erector spinae and multifidus muscles and restricted spinal joint range of motion (axial and lateral bending, ). Hip joint rotation increased ( ). Moderate to strong correlations were observed between muscle activity and spinal joint ROM, notably with left erector spinae and L5-S1 lateral bending ( ). Backpack carriage decreases back muscle activation and alters the joint range of motion. Asymmetric correlations show that the subjects adapt muscle activity and gait patterns asymmetrically to manage external loads.
本研究旨在了解背包背负这一许多人日常进行的活动对行走时背部肌肉和关节活动度的影响，以便临床医生能够制定策略或开发产品，确保个人的安全与健康。使用表面肌电图（EMG）和XSENS Awinda运动捕捉系统来分析背负一个背包（体重的12%）对竖脊肌和多裂肌以及脊柱、髋关节、膝关节和踝关节的影响。受试者在平坦和倾斜表面上以4公里/小时的速度行走。配对t检验将背包负重与基线测量值进行比较。背负背包会降低竖脊肌和多裂肌的激活水平，并限制脊柱关节的活动范围（轴向和侧向弯曲）。髋关节旋转增加（）。在肌肉活动与脊柱关节活动度之间观察到中度至强相关性，特别是与左侧竖脊肌和L5-S1侧向弯曲之间（）。背负背包会降低背部肌肉的激活，并改变关节活动范围。不对称相关性表明，受试者以不对称方式调整肌肉活动和步态模式来应对外部负荷。
