Isometric Pull-Push Strengths in Workspace. 2, Analysis of Spatial Factors

• Autorzy: Das B. , Wang Y.
• Języki publikacji: EN

Abstrakty

EN

The effect of reach levels, horizontal angles and vertical angles on isometric pull and push strengths of males and females in standing and seated positions was determined. The effect of reach levels on strength varied as a consequence of force direction, working position and gender. Reach level has a significant effect on women's pull strength in the seated position and on push strength in the standing position. The strength value was significantly greater in the extreme reach than in maximum or normal reach. Vertical angle ö had a significant effect on strength consistently in all cases. Strength values increased significantly with the increase of ö angles from 0º to 45º to 90º. The horizontal angle è had a significant influence only on the pull strength of standing and seated men and standing women (not seated woman). The maximum strength was significantly greater at è = 90º.

Słowa kluczowe

EN

isometric strength; push and pull strengths; workspace reach levels; vertical and horizontal angles; workstation design

PL

pchanie; siła mięśni; praca mięśni; pozycja przy pracy; pozycja siedząca; pozycja stojąca; projektowanie miejsc pracy

• Wydawca: Taylor & Francis
• Czasopismo: International Journal of Occupational Safety and Ergonomics
• Rocznik: 2004
• Tom: Vol. 10, No. 1
• Strony: 59--64
• Opis fizyczny: Bibliogr. 8 poz., tab.

Twórcy

autor

Das B.

• Department of Industrial Engineering, Dalhousie University, Halifax, NS, Canada

autor

Wang Y.

• School of Kinesiology, Simon Fraser University, Burnaby, BC, Canada

Bibliografia

• 1. Chaffin DB, Herrin GD, Keyserling WM. Pre-employment strength testing - an updated position, J Occup Med 1978;20:403-9.
• 2. Hunsicker PA. Arm strength at selected degrees of elbow flexion (WADC Technical Report No. 54-548). Wright-Patterson AFB, OH, USA: Wright Air Development Centre (WADC); 1955.
• 3. Evans WA. The relationship between isometric strength of Cantonese males and the US NIOSH guide for manual lifting, Appl Ergon 1990;21:135-42.
• 4. Niebel BW, Frivaldas A. Methods, standards, and workdesign. 10th ed. New York, NY, USA: McGraw-Hill; 1999.
• 5. Davis PR, Stubbs DA. Safe levels of manual forces for young males (1). Appl Ergon 1977;8(3):141-50.
• 6. Das B, Wang Y. Isometric pull-push strengths in workspace: 1. Strength profiles. JOSE 2004;10(1):43-58.
• 7. Mason RL, Gunst RF, Hess JL. Statistical design and analysis of experiments with applications to engineering and science, New York, NY, USA: Wiley; 1989.
• 8. Garg A, Beller D. One handed dynamic pulling strength with special reference to speed, handle height and angles of pulling, Int J Ind Ergon 1990;3:231-40.