Physiological Evaluation of Childcare-Associated Muscle Load on the Neck and Shoulder Region in Japanese Women.
Physiological Evaluation of Childcare-Associated Muscle Load on the Neck and Shoulder Region in Japanese Women.
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DOI：
10.1155/2016/1757094
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发表时间：
2016
影响因子：
1.9
通讯作者：
Nemoto S
中科院分区：
文献类型：
--
作者：
Yoshinaga S;Kiyokawa T;Kuramoto E;Kinoshita H;Nemoto S
与育儿活动相关的尴尬动作和姿势可能会导致颈部和肩部的肌肉骨骼症状。 “抱抱”是日本一种抱孩子的方法，最近有报道称这种方法会导致肩膀僵硬。据我们所知，人们对儿童保育活动与颈部和肩部身体负荷之间的关系知之甚少。本研究旨在通过 Dakko 模拟来阐明颈部和肩部区域的肌肉负荷。首先，通过图像和肌电图分析阐明了 Dakko 运动和斜方肌活动之间的关联。基于这一澄清，使用肌源性电位地形图阐明了重复 Dakko 运动的肌肉负荷的分布和强度。在 Dakko 运动过程中，在举起和放下孩子时观察到斜方肌活动，但在抱着孩子时观察不到斜方肌活动。对于重复运动，在运动负荷后在斜方肌区域观察到肌源性电位，并在负荷分布和恢复过程中揭示了参与者的个体特征。重复的打鼓动作可能会引起斜方肌持续紧张，这可能是与肩部僵硬相关的一个因素。
The awkward movements and postures associated with childcare activities can lead to musculoskeletal symptoms in the neck and shoulders. “Dakko” is a method for carrying a child in Japan, and recently it has been reported to cause shoulder stiffness. To our knowledge, the relationship between childcare activities and the physical load on the neck and shoulders is poorly understood. The present study aims to clarify the muscle load on the neck and shoulder region through dakko simulations. First, the association between dakko movements and trapezius muscle activity is clarified by image and electromyogram analyses. Based on this clarification, the distributions and intensity of the muscle load from repetitive dakko movements are clarified using myogenic potential topography. During dakko movements, trapezius muscle activity was observed when lifting up and setting down the child, but not when holding the child. For the repetitive movements, myogenic electrical potentials were observed in the trapezius region after movement load, and individual characteristics of participants were revealed in both the load distributions and the recovery process. Repetitive dakko movements likely induced sustained muscle tonus in the trapezius, which may be a factor related to shoulder stiffness.