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Effect of One-Handed Pushing and Puling Strength at Different Handle Heights in Vertical Direction

Authors: Tarik H. Badi, Amer A. Boushaala

Abstract:

The purpose of this study was to measure the maximal isometric strength and to investigate the effects of different handleheights and elbow angles with respect to Mid. sagittal plane on the pushing and pulling strength in vertical direction. Eight male subjects performed a series of static strength measurement for each subject. The highest isometric strength was found in pulling at shoulder height (S.H.) (Mean = 60.29 lb., SD = 16.78 lb.) and the lowest isometric strength was found also in pulling at elbow height (E.H.) (Mean = 33.06 lb., SD = 6.56 lb.). Although the isometric strengths were higher at S.H than at E.H. for both activities, the maximal isometric strengths were compared statistically. ANOVA was performed. The results of the experiment revealed that there was a significant different between handle heights. However, there were no significant different between angles and activities, also no correlation between grip strength and activities.

Keywords: Pushing and pulling, one arm, vertical direction, isometric strength.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1072652

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References:


[1] Ayoub, M. M. and McDaniel, J. W. (1974), "Effects of operator stance on pushing and pulling tasks," AIIE Transactions, Vol. 6, Pp. 185-195.
[2] Baril-Gingras, Genevieve and Lortie, Monique (1995), "The handling of objects other than boxes: univariate analysis of handling techniques in a large transport company," Ergonomics, 38(5), pages 905 - 925..
[3] Chaffin, D.B., Andres, R.O., and Garg, A. (1983), "Volitional postures during maximal push/pull exertions in the sagittal plane," Human Factors, 25: 541-550.
[4] Fothergill, David M., et al. (1991), "Human strength capabilities during one-handed maximum voluntary exertions in the fore and aft plane," Ergonomics, Vol. 34, No. 5, 563-573.
[5] Garg, A., et al. (1988), "One-handed dynamic pulling strength with special application to lawn mowers," Ergonomics, Vol. 31, No. 8, pp. 1139-1153.
[6] Granata, Kevin P. and Bennett, Bradford C. (2005), "Low-Back Biomechanics and Static Stability During Isometric Pushing," Human Factors, 47(3): 536-549.
[7] Hoozemans, Marco J.M., Van der Beek, Allard J., Frings-Dresen, Monique H.W., and Ven der Molen, Henk F. (2001), "Evaluation of methods to assess push/pull forces in a construction task," Applied Ergonomics, 32: 509-516.
[8] Kingma, Idsart P. et. al. (2003), "Effect of design of two-wheeled containers on mechanical loading," International Journal of Industrial Ergonomics, 31: 73-86.
[9] Kumar, S., Narayan, Y. and Bacchus, Chris (1995), "Symmetric and Asymmetric Two-Hand Pull-Push Strength of Young Adult," Human Factors, 37(4), 854-865.
[10] NIOSH 1981, Work Practices Guide for Manual Lifting. U.S., D.H.S.S., Pub. No. 81-122.