Optimization of the levels of grip force, stroke rotation, frequency and grip span for a torqueing task

• Autorzy: Bano F. , Mallick Z. , Khan A. A.
• Języki publikacji: EN

Abstrakty

EN

This study was to investigate the effects of grip force, frequency, stroke rotation and grip-span on discomfort and obtain best posture for hand tool users. Fifteen male participants volunteered in this study. Participants performed combined gripping with torqueing exertions for 5 min for two levels of frequency (10 and 20 exertions/min) at two levels of grip force (50 and 70 N), two levels of stroke rotation (30° and 60°) and three levels of grip-span (4.7, 6 and 7.3 cm). Therefore, a 2×2×2×3 full factorial design was used. The analysis of variance (ANOVA) showed that frequency, stroke rotation and grip-span were significant on discomfort score. Minimum discomfort and comfortable posture was found to be 90 N grip force with 10 exertions/min for 60° stroke rotation at 6-cm grip-span. The grip force, frequency and stroke rotation were found significant on EMG activity of forearm muscles using multivariate analysis of variance (MANOVA). The extensor muscles were found more activated than flexor muscles during the given task.

Słowa kluczowe

EN

grip force; stroke rotation; grip span

PL

siła chwytania; ruch obrotowy; narzędzia ręczne; praca mięśni

• Wydawca: Taylor & Francis
• Czasopismo: International Journal of Occupational Safety and Ergonomics
• Rocznik: 2015
• Tom: Vol. 21, No. 1
• Strony: 94--104
• Opis fizyczny: Bibliogr. 45 poz.

Twórcy

autor

Bano F.

• Jamia Millia Islamia, India

autor

Mallick Z.

• Jamia Millia Islamia, India

autor

Khan A. A.

• Aligarh Muslim University, India

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.