@article{oai:nagoya.repo.nii.ac.jp:02005868,
 author = {島岡, みどり and SHIMAOKA, Midori and 蛭田, 秀一 and HIRUTA, Shuichi and 小野, 雄一郎 and ONO, Yuichiro and 杢子, 耕一 and MOKUSHI, Koichi and 野中, 寿子 and NONAKA, Hisako and 矢部, 京之助 and YABE, Kyonosuke and 森岡, 繁太郎 and MORIOKA, Shigetaro},
 issue = {1},
 journal = {総合保健体育科学, Nagoya Journal of Health, Physical Fitness & Sports},
 month = {Mar},
 note = {The purpose of this study was to investigate relationship between physical fitness and overwork-time in workers in after-school institutions, where it was reported that musculoskeletal disorders were caused. One hundred and thirty-five workers (56 males and 79 females) were examined by measuring grip strength, back strength, trunk extension, standing trunk flexion, maxmal oxygen uptake (Vo2max). Overwork-time in a month were checked by use of the questionnaire. The results as follows ; 1) In males, longer overwork-time group (21+hours/month ; LOG) had the significantly higher mean values of back strength and grip strength than shorter overwork-time group (0-20 hours/month ; SOG) had. 2) In males, the percentage of LOG members in lower back strength group (143kg and less than 143kg) was 18.5% and significantly lower than that (48.3%) in higher back strength group (more than 143kg). 3) Overwork-time of males (20.2±14.4 hours/month), who had the significantly higher mean values or back strength than females had, was significantly longer than that of females (13.8±9.3 hours/month). The results suggested that there might be relationship between overwork-time and strength in workers in after-school institutions, and overwork should be restricted regardless of fitness level to obtain more benefits from physical fitness training for prevention of musculoskeletal disorders.},
 pages = {69--74},
 title = {保育労働者における体力と労働時間の関係 : 学童保育指導員について},
 volume = {13},
 year = {1990}
}