This study investigated the effect which various handle shapes produced on grip fatigue. This was measured through the calculation of a time to fatigue using a spectral analysis of the surface EMG of the grip muscles and through the determination of maximal pull forces in the upward direction. Significant differences existed between the handles in the maximum pull test, but not in the times to fatigue.
Get full access to this article
View all access options for this article.
References
1.
AstrandP.RodahlK.“Textbook of Work Physiology,”McGraw-Hill, New York, 1977, pp. 104–105
2.
AyoubM. M.LoPrestiP.“The Determination of an Optimum Size Cylindrical Handle by Use of Electromyography,”ERGONOMICS, 1971, Vol. 14, No. 4, pp. 509–518
3.
BobbertA. C.“Optimal Form and Dimensions of Hand Grips on Certain Concrete Building Blocks,”ERGONOMICS, 1960, Vol. 3, pp. 141–147
4.
ChaffinD. B.“Localized Muscle Fatigue - Definition and Measurement,”J. OCCUP. MED., Vol. 15, No. 4, April 1973, pp. 346–354
5.
ChaffinD. B.“Electromyography - A Method of Measuring Local Muscle Fatigue,”J. METH. TIME MEAS., Vol. 14, No. 2, 1969.
6.
CochranD. J.RileyM. W.SchellerW. L.II“An Examination of Handle Size and Shape for Manual Material Handling Tasks,” Poster Session presented at Amer. Ind. Hyg. Annual Conf., Cincinnati, OH, June 6–11, 1982.
7.
CochranD. J.“An Investigation of Safe Handle Design,” NIOSH Grant No. 1 R01 OH 01134–01
8.
DruryC. G.“Handles for Manual Material Handling,”APPLIED ERGONOMICS, 1980, Vol. 11, No. 1, pp. 35–42
9.
HerbertsP.KadeforsR.BromanH.“Arm Positioning in Manual Tasks. An Electromyographic Study of Localized Muscle Fatigue,”ERGONOMICS, 1980, Vol. 23, No. 7, pp. 655–665
10.
HerrinG. D.“Criteria for Research on the Hazards of Manual Material Handling,” NIOSH Contract Report CDC 99-74-118, 1974.
11.
KhalilT. M.“An Electromyographic Methodology for Evaluation of Industrial Design,”HUMAN FACTORS, 1973, Vol. 15, No. 3, pp. 257–264
12.
NeterJohnWassermanWilliam“Applied Linear Statistical Models,”Irwin, Inc.; Homewood, IL, 1974.
13.
NIOSH Technical Report, “Work Practices for Manual Lifting,”U.S. Government Printing Office, Washington, D.C., March, 1981.
14.
PetrofskyJ. S.LindA. R.“Metabolic, Cardiovascular and Respiratory Factors in the Development of Fatigue in Lifting Tasks,”J. APPL. PHYS., Vol. 45, No. 1, 1978, pp. 64–68
15.
PetrofskyJ. S.LindA. R.“Frequency Analysis of the Surface Electromyogram During Sustained Isometric Contractions,”EUR., J. APPL. PHYS., Vol. 43, 1980, pp. 173–182
16.
PheasantS.O'NeillD.“Performance in Gripping and Turning - A Study in Hand/Handle Effectiveness,”APPLIED ERGONOMICS, 1975, Vol. 6, No. 4, pp. 205–208
17.
RubarthB.“Untersuchung zur Bestgestaltung von Handheften fuer Schraubenzieher und Anhliche Werkzeuge,”INDUSTRIELLE PSYCHOTECHNIK, 1928, Vol. 5, No. 5, pp. 129–142
18.
TerrellRobert E.“The Influence of Forearm and Wrist Orientation on Static Grip Strength,” Master's Thesis, University of Oklahoma, 1975, pp. 61–66
19.
WoodsonW. E.“Good Human Engineering is Possible Using Off-the-Shelf Component Products,”HUMAN FACTORS, Vol. 13, No. 2, 1971, pp. 141–152
