Physiological Evaluation of Childcare-Associated Muscle Load on the Neck and Shoulder Region in Japanese Women
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 childca...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Nursing Research and Practice |
| Online Access: | http://dx.doi.org/10.1155/2016/1757094 |
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| author | Saori Yoshinaga Takuma Kiyokawa Eriko Kuramoto Hiroe Kinoshita Seiji Nemoto |
| author_facet | Saori Yoshinaga Takuma Kiyokawa Eriko Kuramoto Hiroe Kinoshita Seiji Nemoto |
| author_sort | Saori Yoshinaga |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-862b60058e23476883df2f74b3743257 |
| institution | Kabale University |
| issn | 2090-1429 2090-1437 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Nursing Research and Practice |
| spelling | doaj-art-862b60058e23476883df2f74b37432572025-02-03T05:51:19ZengWileyNursing Research and Practice2090-14292090-14372016-01-01201610.1155/2016/17570941757094Physiological Evaluation of Childcare-Associated Muscle Load on the Neck and Shoulder Region in Japanese WomenSaori Yoshinaga0Takuma Kiyokawa1Eriko Kuramoto2Hiroe Kinoshita3Seiji Nemoto4Department of Fundamental Nursing, Faculty of Medicine, Miyazaki University, 5200 Kihara, Kiyotake, Miyazaki 889-1692, JapanGraduate School of Nursing Science, Miyazaki University, 5200 Kihara, Kiyotake, Miyazaki 889-1692, JapanDepartment of Humanics Nursing, Miyazaki Prefectural Nursing University, Manabino, Miyazaki 880-0929, JapanInterdisciplinary Graduate School of Medicine and Veterinary Medicine, Miyazaki University, 5200 Kihara, Kiyotake, Miyazaki 889-1692, JapanDepartment of Fundamental Nursing, Faculty of Medicine, Miyazaki University, 5200 Kihara, Kiyotake, Miyazaki 889-1692, JapanThe 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.http://dx.doi.org/10.1155/2016/1757094 |
| spellingShingle | Saori Yoshinaga Takuma Kiyokawa Eriko Kuramoto Hiroe Kinoshita Seiji Nemoto Physiological Evaluation of Childcare-Associated Muscle Load on the Neck and Shoulder Region in Japanese Women Nursing Research and Practice |
| title | Physiological Evaluation of Childcare-Associated Muscle Load on the Neck and Shoulder Region in Japanese Women |
| title_full | Physiological Evaluation of Childcare-Associated Muscle Load on the Neck and Shoulder Region in Japanese Women |
| title_fullStr | Physiological Evaluation of Childcare-Associated Muscle Load on the Neck and Shoulder Region in Japanese Women |
| title_full_unstemmed | Physiological Evaluation of Childcare-Associated Muscle Load on the Neck and Shoulder Region in Japanese Women |
| title_short | Physiological Evaluation of Childcare-Associated Muscle Load on the Neck and Shoulder Region in Japanese Women |
| title_sort | physiological evaluation of childcare associated muscle load on the neck and shoulder region in japanese women |
| url | http://dx.doi.org/10.1155/2016/1757094 |
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