ERGONOMIC DESIGN AND EVALUATION OF FABRIC CUTTING SCISSORS WITH REGARD TO PINCH FORCE AND WRIST POSTURE

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ASADOLLAHI SOUDABEH; DIANAT IMAN; NEDAEI MOEIN

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Journal: Iranian Journal of Ergonomics Year:2017 | Volume:5 | Issue:2 Page(s): 61-66

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Information Journal Paper

Title

ERGONOMIC DESIGN AND EVALUATION OF FABRIC CUTTING SCISSORS WITH REGARD TO PINCH FORCE AND WRIST POSTURE

Author(s)

ASADOLLAHI SOUDABEH | DIANAT IMAN | NEDAEI MOEIN | Issue Writer Certificate

Keywords

SEWING SCISSORSQ1

HAND TOOLSQ1

PINCH FORCEQ1

WRIST POSTUREQ1

Abstract

Introduction: Scissors are essential tools in different occupations including sewing and clothes making. Improper design of fabric cutting scissors can lead to the development of musculoskeletal symptoms among users.Objective: The aim of this study was to evaluate PINCH FORCE and WRIST POSTURE while working with three designs of SEWING SCISSORS and a traditional SEWING SCISSORS.Methods: The first model had a bent-handle (to improve WRIST POSTURE), the second model had a thumb-ring that was located closer to the pivot (to reduce thumb’s abducted position and range of movement), and the original oval ring in the third model was changed to a hook-shaped handle (to reduce hand and finger discomfort). PINCH FORCE was measured using a pinch gauge and WRIST POSTURE was measured in two anatomical planes including flexion/extension and ulnar/radial deviation using observational method.Results: The results showed significant effects of scissors design on PINCH FORCE exertions (p<0.01) and ulnar/radial deviation of the wrist (p<0.001). The lowest level of PINCH FORCE decrement between pre and post PINCH FORCE measurements was recorded for the second model (2.4%), while the highest level was recorded for the traditional model (7%). More neutral WRIST POSTUREs in ulnar/radial direction (83%) were recorded for the first model compared to the other designs.Conclusions: The second scissors, which was designed to reduce thumb’s range of motion and abduction, showed some improvement in PINCH FORCE compared to the traditional model.

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APA: Copy

ASADOLLAHI, SOUDABEH, DIANAT, IMAN, & NEDAEI, MOEIN. (2017). ERGONOMIC DESIGN AND EVALUATION OF FABRIC CUTTING SCISSORS WITH REGARD TO PINCH FORCE AND WRIST POSTURE. JOURNAL OF ERGONOMICS, 5(2 ), 61-66. SID. https://sid.ir/paper/103346/en

Vancouver: Copy

ASADOLLAHI SOUDABEH, DIANAT IMAN, NEDAEI MOEIN. ERGONOMIC DESIGN AND EVALUATION OF FABRIC CUTTING SCISSORS WITH REGARD TO PINCH FORCE AND WRIST POSTURE. JOURNAL OF ERGONOMICS[Internet]. 2017;5(2 ):61-66. Available from: https://sid.ir/paper/103346/en

IEEE: Copy

SOUDABEH ASADOLLAHI, IMAN DIANAT, and MOEIN NEDAEI, “ERGONOMIC DESIGN AND EVALUATION OF FABRIC CUTTING SCISSORS WITH REGARD TO PINCH FORCE AND WRIST POSTURE,” JOURNAL OF ERGONOMICS, vol. 5, no. 2 , pp. 61–66, 2017, [Online]. Available: https://sid.ir/paper/103346/en

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