Grip strength has been well studied in conjunction with product and individual characteristics including age. Design characteristics for products targeted to older adults frequently include larger or chunkier handles or grips. To understand motivation for these design choices, this investigation assessed grip strength at 5 grip spans of 31 participants in two age groups. The downward shift in the grip strength/span curve can be attributed to the decrease in strength with age associated with loss of type II muscle fibers in all muscles (which was more pronounced for male participants). However, there was no shift in the grip strength/span curve peak to a wider grip. Thus the affinity for chunkier handles (increased volume, contact surface area, and grip span) and grip designs for older adults is not motivated by a shift in peak grip strength over the tested grip span.
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References
1.
Ashton-MillerJ. A.SchultzA. B. (1997). Biomechanics of the Human Spine. In MowV.C.HayesW.C.Basic Orthopaedic Biomechanics (369). Philadelphia: Lippincott-Raven.
2.
BrookeL. (2003). Human Resource Costs and Benefits of Maintaining a Mature-Age Workforce. International Journal of Manpower, 24 (3), 260–283.
3.
BrownJ.Mills (1994). Neuromuscular control of lifting in the elderly. Gerontology, 40, 298–306.
4.
ClerkeA.M.ClerkeJ. P.AdamsR. D. (2005). Effects of hand shape on maximal isometric grip strength and its reliability in teenagers. Journal of Hand Therapy, 18, 19–29.
5.
DrennanF.S.RickeyD. (2003). Injury Prevention in an Aging Workforce: Strategies for Integrating Safety, Fitness and Supervisor Leadership. Professional Safety, 48 (9), 29–38.
6.
FrederiksenH.HjelmborgJ.MortensenJ.McGueM.VaupelJ.W.ChristensenK. (2006). Age trajectories of grip strength: Cross-sectional and longitudinal data among 8,342 danes aged 46 to 102. Annals of Epidemiology, 16 (7), 554–62.
7.
FreemanE.J. (2004). Union-Management Solutions for Preventing Workplace Injury of Older Workers. Work, 22 (2), 145–151.
8.
FrohnerK.D. (2003). Work Situation Evaluation as a Prerequisite for Productive Aging of Engineers and Innovators. In KumashiroM. (Eds.), Aging and Work.(137–142). London, Taylor & Francis.
9.
HackelM.WolfeG. (1992). Changes in hand function in the aging adult as determined by the Jebsen Test of Hand Function. Physical Therapy, 72, 373–377.
10.
HaightJ.M. (2003). Human Error and the Challenge of an Aging Workforce: Considerations for Improving Workplace Safety. Professional Safety, 48 (12), 18–24.
11.
HasselkusB.ShambesG. (1975). Aging and postural sway in women. Journal of Gerontology, 30, 661–667.
12.
HyattR.WhitelawM. (1990). Association of muscle strength with functional status of elderly people. Age and Ageing, 19, 330–336.
13.
JoinesS. (2002). Using surface electromyography to study cervical extensor muscle activity: An investigation of methodological considerations and the effects of age on fatigue development and recovery. Industrial Engineering. Raleigh, North Carolina State University.
14.
LaforestS.St-PierreD. (1990). Effects of age and regular exercise on muscle strength and endurance. European Journal of Applied Physiology. 60(2).
15.
Lagan-FoxJ.MorrisM. (2004). Ageing and Stress: Ergonomic Issues in Employing the Older Worker. Ergonomics for a BIZ-e World., Cairns, Australia, Proceedings of the 40th Annual Conference of the Human Factors and Ergonomics Society of Australia and the 7th Annual Conference of Pan Pacific Council on Occupational Ergonomics.
16.
MunkK. (2003). The Older Worker: Everyone's Future. Journal of Occupational Health and Safety - Australia and New Zealand, 19 (5), 437–446.
17.
NicolayC.W.WalkerA.L. (2005). Grip strength and endurance: Influences of anthropometric variation, hand dominance, and gender. International Journal of Industrial Ergonomics, 35 (7), 605–18.
18.
O'driscollS.HoriiE.NessR.CahalanT.RichardsR.AnK. (1992). The relationship between wrist position, grasp size, and grip strength. The Journal of Hand Surgery, 17 (1), 169–77.
19.
RantanenT.MasakiK.FoleyD.IzmirlianG.WhiteL.GuralnikJ. (1998). Grip strength changes over 27 yr in japanese-american men. Journal of Applied Physiology, 85 (6), 2047–53.
20.
SharitJ. (2004). An Evaluation of Performance by Older Persons on a Simulated Telecommuting Task. Journal of Gerontology: Psychological Sciences and Social Sciences, 59 (6), 305–316.
21.
SudhakarL.R.SchoenmarklinR.W.LavenderS.A.MarrasW.S.The effect of gloves on grip strength and muscle activity. Paper presented at Human Factors and Ergonomics Society Annual Meeting.
22.
YanJ. H.DowningJ. H. (2001). The effects of aging, grip span, and grip width on hand strength. Research Quarterly for Exercise and Sport, 71 (1), 71–77.
