Maximal Grip Force During Holding A Cylindrical Handle with Different Diameters
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Purpose. The purpose of the study was to estimate the effects of cylindrical handle diameter and handle position on maximal grip force in young males and females. Basic procedures. The maximal voluntary grip force perpendicular to the surface of the handle was estimated using a glove with 320 sensors (Tekscan, USA - GripTM System). Individual digit and palm forces were studied. Different handle diameters (20, 30, 40 and 50 mm) and handle positions (vertical, natural - vertical handle with 12 deg of ulnar deviation of the hand, and horizontal) were applied during measurement. Main findings. Using handles and hand tools frequently leads to the feeling of discomfort in daily life. In a longer term, using improper handles and hand tools may also cause musculoskeletal disorders. Poor wrist positioning and handle diameter can diminish grip strength. The ideal diameter and wrist position during holding a tool handle was determined for males and females using maximal grip strength measurements. The obtained results showed that a tool handle diameter of 20 to 30 mm is optimal for the general population. Further research should be carried out to estimate the impact of wrist positioning in the elderly. Conclusions. The handle positioning is not a significant factor influencing hand grip force capabilities for young men and women. The grip force of three digits did not significantly vary for different handle positions used in the study. The optimal handle diameter for maximal grip force was estimated to be between 20 and 30 mm, and the diameter was larger for men. On the basis of results for individual digits the 30 mm diameter was chosen as optimal for both sexes.
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- Napier J.R., The prehensile movements of the human hand. Journal of Bone and Joint Surgery, 1956, 38B, 902-913.
- Landsmeer J.M.F., Power grip and precision handling. Ann Rheum Dis, 1962, 21(2), 164-170. DOI: 10.1136/ard.21.2.164.[PubMed][Crossref]
- Chao E.Y., Opgrande J.D., Axmear F.E., Three-dimensional force analysis of finger joints in selected isometric hand functions. J Biomech, 1976, 9(6), 387-388. DOI: 10.1016/0021-9290(76)90116-0.[Crossref][PubMed]
- Cooney W., Chao E.Y., Biomechanical analysis of static forces in the thumb during hand function. J Bone Joint Surg Am, 1977, 59(1), 27-36.[PubMed]
- Edgren C.S., Radwin R.G., Irwin C.B., Grip force vectors for varying handle diameters and hand sizes. Hum Factors, 2004, 46(2), 244-251. DOI: 10.1518/hfes.126.96.36.199337.[PubMed][Crossref]
- Imrhan S.N., Comparison of wrist twisting torques in three age groups. Advances in Occupational Ergonomics and Safety, 1996, 1(2), 458-462.
- Berns T., The handling of consumer packaging. Appl Ergon, 1981, 12(3), 153-161. DOI: 10.1016/0003-6870(81)90004-1.[PubMed][Crossref]
- Torrens G.E., Hann J., Webley M., Joy J., Sutherland I.A., Hand performance assessment of ten people with Rheumatoid Arthritis when using a range of specified saucepans. Disability and Rehabilitation, 2000, 22(3), 123-134. DOI: 10.1080/096382800296971.[Crossref][PubMed]
- Peebles L., Norris B., Filling ‘gaps’ in strength data for design. Appl Ergon, 2003, 34(1), 73-88. DOI: 10.1016/S0003-6870(02)00073-X.[PubMed][Crossref]
- Härkönen R., Piirtomaa M., Alaranta H., Grip strength and hand position of the dynamometer in 204 Finnish adults. J Hand Surg Eur Vol, 1993, 18(1), 129-132. DOI: 10.1016/0266-7681(93)90212-X.[Crossref]
- Mathiowetz V., Kashman N., Volland G., Weber K., Dowe M., Rogers S., Grip and pinch strength: normative data for adults. Arch Phys Med Rehabil, 1985, 66(2), 69-74.[PubMed]
- Sancho-Bru J.L., Giurintano D.J., Pérez-González A., Vergara M., Optimum tool handle diameter for a cylinder grip. J Hand Ther, 2003, 16(4), 337-342. DOI: 10.1197/S0894-1130(03)00160-1.[Crossref]
- Irwin C.B., Radwin R.G., A new method for estimating hand internal loads from external force measurements. Ergonomics, 2008, 51(2), 156-167. DOI: 10.1080/00140130701526408.[WoS][Crossref][PubMed]
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