【成蹊大学】教員検索

菅間 敦

スガマ アツシ  (Atsushi Sugama)

基本情報

所属
成蹊大学 理工学部 理工学科 准教授
学位
博士(工学)(首都大学東京)

J-GLOBAL ID
201401070115064734
researchmap会員ID
B000237021

主要な論文

 37
  • Atsushi Sugama, Akihiko Seo
    Sensors 21(11) 3909-3909 2021年6月5日  査読有り
    Background: Loss of balance is a considerable risk factor for workers while using ladders, because they are required to maintain static postural balance on platforms of a restricted size. This study observed center of mass (CoM) and center of pressure (CoP) behaviors and evaluated the effects of the platform depth (anterior–posterior length) and working postures. Methods: Eleven male participants stood on four platforms with depths ranging from 6 to 15 cm and maintained their positions for 60 s while performing or not performing other tasks (object holding, upward viewing, or both simultaneously). The kinematics were analyzed on the sagittal plane based on the inverse pendulum model. Results: The absolute moving range for the CoP–CoM linearly increased with the decreasing platform depth, and the working postures affected the slopes of the linear fits. The relative range of CoP–CoM displacement on narrow platforms was highly correlated with the subjective sense of instability. Conclusions: Monitoring the CoP is effective for a better understanding and evaluation of static postural balance. This study’s findings contribute to improving the design of work equipment through the use of wider platforms that are robust against the effects of working postures.
  • Atsushi Sugama, Yasuhiro Tonoike, Akihiko Seo
    Human Factors and Ergonomics In Manufacturing 30(3) 195-203 2020年5月1日  
    This study investigates the functional stability limits (FSLs) in the squatting positions. Eleven male participants leaned and moved their pelvis horizontally in the clockwise and counter-clockwise directions while squatting at 11 depth levels. The depth was controlled by changing the hip height from 100% to 0% of the upright position. The FSLs and the center of pressure excursion lengths were calculated from the force-plate data, and the musculoskeletal loads on the lower limbs were estimated from the joint torques and surface electromyograms. As the hip height reduced, the area of the FSLs narrowed by up to 20% of the base of support (BOS) area at the deepest squatting position. The narrowing was affected by the decreasing FSLs in the forward direction, which also decreased by up to 20% of BOS. These quantitative data accurately evaluate the postural stability, suggesting a considerable fall risk during tasks requiring the squatting position.
  • 菅間敦, 大西明宏
    人間工学 52(1) 40-48 2016年  査読有り

MISC

 115

書籍等出版物

 6

講演・口頭発表等

 19

担当経験のある科目(授業)

 11

Works(作品等)

 3

共同研究・競争的資金等の研究課題

 4

社会貢献活動

 15

メディア報道

 2