Electromyography comparison of normal chair-desk system and assistant chair-desk system on fatigue
| Autor: | Sang Ho Lee, Hyo-Joo Park, Mi-Kyung Han, Jae-Bong Yang, Mi-Ae Shin, Yu-Mi Won, Jae-Kui No, Hu-Nyun Kim, Kyoung-Seok Yoo, Jae-Hun Rho, Tae-Young Kim, Taek-Kyun Lee, Kon-Nym Jung, Ji-Hyoung Chin, Suh-Jung Kang, Tae-Geun Park, Se-Jeong Kwon, Ik-Rae Cho, Min-Jung Kim, Jae-Hee Lee, Hyung-Sik Kahn, Sam-Jun Lee, Ju-Yeon Kim, Moon-Seok Kwon |
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| Rok vydání: | 2015 |
| Předmět: |
Long lasting
medicine.medical_specialty medicine.diagnostic_test business.industry Chair-desk system Posture education Sitting posture Physical Therapy Sports Therapy and Rehabilitation Electromyography Sitting Trunk Physical medicine and rehabilitation medicine Original Article Trapezius muscle business Tilt (camera) Fatigue Simulation Desk |
| Zdroj: | Journal of Physical Therapy Science |
| ISSN: | 2187-5626 0915-5287 |
| DOI: | 10.1589/jpts.27.3171 |
| Popis: | [Purpose] This study was designed to test the effects of the Assistant Chair-Desk System (ACDS), which can reduce the forward tilt of the neck and trunk and the level of fatigue during long lasting study in the sitting position. [Subjects] Fourteen middle school students and 14 college students of mixed gender participated in this study. [Methods] Fatigue level, the trapezius muscle, and the forward tilt angle of the head and trunk as well as distance factors were assessed before after using a normal chair-desk system (NCDS) and the ACDS for 120 minutes. [Results] There was an interaction effect in the angle and length of the neck from the sitting posture changes after 2 hours of studying using the NCDS and ACDS. There were also significant differences in the fatigue levels, hip joint angles and the lengths from the head according to the main effects of the chair-systems. [Conclusion] The studying position while using the ACDS was determined to prevent significant fatigue levels of the muscle and body, provide support to the head, by limiting the forward movement of the neck, and prevent forward tilt of the neck and trunk, by enabling the target point and gaze to be closer to the horizontal direction. |
| Databáze: | OpenAIRE |
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