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Guidelines for preventing musculoskeletal disorders in asymmetric lifting tasks

Research Project

Project/Area Number 02670217
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Hygiene
Research InstitutionNagoya University

Principal Investigator

ONO Yuichiro  Nagoya Univ., School of Medicine, Asst.Prof., 医学部, 講師 (80135334)

Co-Investigator(Kenkyū-buntansha) HIRUTA Syuichi  Nagoya Univ., Res. Center of Health, Physical fitness and Sports, Asst.Prof., 総合保健体育科学センター, 講師 (30173272)
SHIMAOKA Midori  Nagoya Univ., Res. Center of Health, Physical fitness and Sports, Asst.Prof., 総合保健体育科学センター, 講師 (30135389)
TAKEUCHI Yasuhiro  Nagoya Univ., School of Medicine, Prof., 医学部, 教授 (90022805)
HISANAGA Naomi  Nagoya Univ., School of Medicine, Asst.Prof., 医学部, 講師 (90111856)
SHIBATA Eiji  Nagoya Univ., School of Medicine, Res.Assoc., 医学部, 助手 (90206128)
Project Period (FY) 1990 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1992: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1991: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1990: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsAsymmetric lifting / Strength / Rating of perceived exertion / Foot locations / Hand locations / Guidelines / Musculoskeletal disorders / Social welfare service workers / 作業負担 / 非対称持つ上げ / 体力 / 物体取り扱い作業 / 静的筋力 / 動的筋力 / 非対称持ち上げ
Research Abstract

We aimed to clarify the magnitude of work load in asymmetric lifting tasks in many workplaces and make an ergonomic database of the tasks experimentally in order to establish guidelines for preventing musculoskeletal disorders.
1. Surveys in some workplaces: Frequency of asymmetric lifting and the risk of its causing low back pain (LBP) were investigated in social welfare service workers. Workers doing manual material handling (MMH) in a distribution industry and students in a junior college were also included. We found that workers with person handling or MMH activities had high complaint rates of LBP associated with frequent asymmetric lifting tasks. Thus, we considered that some preventive measures were needed.
2. Experimental studies of box lifting: 1) Asymmetric material locations: Strengths decreased and ratings of perceived exertion (RPEs) increased at the ipsilateral thigh, knee, arm, and whole body with an increase in the angle of asymmetry. Similar decrement of strength was observed in isometric and dynamic measurements excerpt for that in the angles of 45 degrees. 2)Asymmetric hand locations: Isometric and dynamic strengths degreased and RPEs of the arm increased in lifting with oblique hand locations. 3)Foot locations and asymmetric lifting: In asymmetric lifting with stooping posture, dynamic strength decreased and RPEs of the low back and the thigh increased with an increase of horizontal distance between foot and the box.
Then, we discussed recommendable guidelines for asymmetric lifting tasks on the basis of our experimental studies. This research project will be continued in the studies of asymmetric lifting tasks with some variations of the box weight and lifting frequency.

Report

(4 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • 1990 Annual Research Report

Research Products

(10 results)

All Other

All Publications (10 results)

  • [Publications] 小野 雄一郎,島岡 みどり,蛭田 秀一,服部 洋見,市原 学,近藤 英隆,柴田 英治,黄 健,久永 直見,竹田 康浩,: "社会福祉施設職員の非対称保持・持上げ作業" 総合保健体育科学. 15. 95-104 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 小野 雄一郎,島岡 みどり,蛭田 秀一,市原 学,柴田 英治,黄 健,久永 直見,竹内 康浩: "保母の担当児年齢による作業負担の比較" 総合保健体育科学. 14. 83-90 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Yuichiro Ono, Midori Shimaoka, Syuichi Hiruta, Gaku Ichihara, Eiji Shibata, Jian Huang, Naomi Hisanaga, Yasuhiro Takeuchi: "A comparative study of the perceived job stress among nursery school teachers based on the age of children in their care." Nagoya J.Health, Physical Fitness & Sports. 14-1. 83-90 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Yuichiro Ono, Midori Shimaoka, Syuichi Hiruta, Youji Hattori, Gaku Ichihara, Hidetaka Kondo, Eiji Shibata, Jian Huang, Naomi Hisanaga, Yasuhiro Takeuchi: "Asymmetrical lifting in social welfare service workers." Nagoya J.Health, Physical Fitness & Sports. 15-1. 95-104 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 小野 雄一郎,島岡 みどり,蛭田 秀一,市原 学,柴田 英治,黄 健,久永 直見,竹内 健浩: "保母の担当児年齢による作業負担の比較" 総合保健体育科学. 14. 83-90 (1991)

    • Related Report
      1992 Annual Research Report
  • [Publications] 小野 雄一郎,島岡 みどり,蛭田 秀一,服部 洋見,市原 学,近藤 英隆,柴田 英治,黄 健,久永 直見,竹内 康浩: "社会福祉施設職員の非対称保持・持上げ作業" 総合保健体育科学. 15. 95-104 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 小野 雄一郎: "社会福祉施設職員の非対称保持・持上げ作業" 総合保健体育科学. 15. 95-104 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 小野 雄一郎: "保母の担当児年齢による作業負担の比較" 総合保健体育科学. 14. 83-90 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Yuichiro ONO: "Strength and RPEs in isometric and dynamic activities with three different hand locations" ERGONOMICS.

    • Related Report
      1991 Annual Research Report
  • [Publications] 小野 雄一郎: "保母の担当児年齢による作業負担の比較" 総合保健体育科学. 14. 83-90 (1991)

    • Related Report
      1990 Annual Research Report

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Published: 1990-03-31   Modified: 2016-04-21  

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