한국의류산업학회지 (Fashion & Textile Research Journal)

  • 제19권4호
  • /
  • Pages.504-514
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  • 2017
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  • 1229-2060(pISSN)
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  • 2287-5743(eISSN)
한국의류산업학회 (The Society of Fashion and Textile Industry)
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아기 띠의 힙시트와 허리지지 유무에 따른 근피로도와 주관적 피로도 평가

Evaluation of Muscle Fatigue and Subjective Fatigue depending on the Hip Seat and Waist Support Band of Baby Carrier

  • 이희란 (충남대학교 생활과학연구소) ;
  • 홍경화 (공주대학교 의류상품학과)
  • Lee, Heeran (Research Institute of Human Ecology, Chungnam National University) ;
  • Hong, Kyung Hwa (Dept. of Fashion Design and Merchandising, Kongju National University)
  • 투고 : 2017.07.24
  • 심사 : 2017.08.22
  • 발행 : 2017.08.31
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초록

Discomfort as well as muscular pain and musculoskeletal diseases occur in cases of stressed posture due to prolonged pressure. Therefore, the American Academy of Orthopaedic Surgeons (AAOS) and Pediatric Orthopaedic Society of North America (POSNA) recommend that bags that weigh no more than 15 - 20% of the wearer's weight. However, despite the prolonged pressure from using baby carriers, there are no recommendations and limited studies on how to protect wearers. Therefore, this study investigates subjective fatigue according to the usage of waist support and hip seat. Based on this, muscle fatigue and secondary subjective fatigue according to three types of currently commercial baby carriers (X-type, H-type, and H-hip type) were measured. Subjective comfortability was evaluated on a 5 point Likert-scale and subjective fatigue was evaluated on Borg's CR-10 scale. Objective muscle fatigue was also compared by measuring and analyzing electromyogram (EMG). The results of primary subjective fatigue showed statistically significant changes in the shoulders, waist, calves, and soles of the feet according to the usage of hip seats and waist support. Electromyogram measurements also showed less muscle fatigue at the upper trapezius muscle and thoracic erector spine muscle for the H-hip seat baby carrier, which has both waist support and hip seat, compared to an X-type baby carrier, which has neither. However, results of subjective fatigue showed opposite results at the waist despite having same results at the shoulders and beneath the shoulders. This show discrepancies between objective muscle fatigue and subjective fatigue; therefore, that both aspects must be taken into consideration when developing ergonomic baby carriers.

키워드

참고문헌

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