Comparison of Power Grip and Lateral Pinch Strengths between the Dominant and Non-Dominant Hands for Normal Chinese Male Subjects of Different Occupational Demand
Article Outline
Abstract
The purpose of this study was to establish handgrip data for right hand dominant normal Chinese subjects. Sixty-four males were studied for their power grip and lateral pinch strengths. They were categorized into non-manual and manual workers. Standardized procedure and instructions were used for handgrip testing. Results showed that both the non-manual and manual workers demonstrated stronger power grip and lateral pinch strengths in their dominant hands. The 10% rule was applicable only for power grip strength of non- manual workers and lateral pinch strength of manual workers. No significant difference was found between the dominant grip strengths in these two groups of subjects. It was recommended that when assessing the progress and outcome of hand rehabilitation, the occupation and demand level of hand use of the patient must be taken into consideration when using the uninjured hand for comparison.
Key words: hand dominance , lateral pinch , occupational demand , power grip
No full text is available. To read the body of this article, please view the PDF online.
References
- . The Hand: Examination and Diagnosis . 3rd edition. New York: Churchill Livingstone; 1983;
- . A comparison of dominant and non-dominant hand strengths . J Hand Surg [Br] . 1999;24:421–425
- Maximum grip strength in normal subjects from 20 to 64 years of age . J Hand Ther . 1999;12:193–200
- . Effects of fingernail length on finger and hand performance . J Hand Ther . 2000;13:211–217
- . Grip and pinch strength: norms for 6-to 19-year-olds . Am J Occup Ther . 1986;40:705–711
- . Grip strength and hand dominance: challenging the 10% rule . Am J Occup Ther . 1989;43:444–447
- . Reliability of grip and pinch strength evaluations . J Hand Surg . 1984;9A:222–226
- . In: Rehabilitation of the Hand: Surgery and Therapy . 4th edition. St Louis: Mosby; 1995;p. 185–214 1345–50, 1839–901.
- . The effect of the duration of intertrial rest periods on isometric grip strength performance in young adults . Occup Ther J Res . 1989;9:362–378
- Hand-grip strength predicts incident disability in non-disabled older men . Age Aging . 1999;28:283–288
- . Normal values for handgrip strength in 920 men and women aged over 65 years, and longitudinal changes over 4 years in 620 survivors . Clin Sci (Colch) . 1993;84:331–337
- . Hand strength: normative values . J Hand Surg [Am] . 1994;19:665–670
- . Grip and pinch strength variations in different types of workers . J Hand Surg [Br] . 1997;22:266–269
- . In: Dictionary of Occupation Titles Volume 2 . 4th edition. Washington DC: US Department of Labor Employment and Training Administration; 1991;p. 1013
- Validity of the Dexter Evaluation System's Jamar dynamometer attachment for assessment of hand grip strength in a normal population . J Hand Ther . 2000;13:46–51
- Validity and reliability of the Dexter Hand Evaluation and Therapy System in hand-injured patients . J Hand Ther . 2000;13:37–45
- . Which setting of the dynamometer provides maximal grip strength? . J Hand Surg [Am] . 1996;21:397–401
- Fluctuation in grip and pinch strength among normal subjects . J Hand Surg [Am] . 1989;14:125–129
- . Clinical Assessment Recommendations . 2nd edition. American Society of Hand Therapists; 1986;
- . Impact of elbow position on grip strength of elderly men . J Hand Ther . 1995;8:27–30
- . Effect of wrist positioning on the repeatability and strength of power grip . Am J Occup Ther . 2001;55:212–216
- . Does elbow position affect strength and repeatability of power grip measurements? . Physiotherapy . 2001;87:68–72
- The relationship between wrist position, grasp size, and grip strength . J Hand Surg [Am] . 1992;17:169–177
- Cederon Medical Inc. Dexter Evaluation and Therapy Systems. User's Manual. 1993.
- . Statistics with Confidence . 2nd edition. Bristol: BMJ Books; 2000;
- . Medical Statistics: A Commonsense Approach . 3rd edition. Chichester: Wiley; 1999;
- . Statistical Tables for the Design of Clinical Trials . Oxford: Blackwell/Scientific Publications; 1987;
- . Bilateral asymmetry in bone measurement of the hand and lateral hand dominance . Am J Phys Anthropol . 1980;52:27–31
- . Clinical Mechanics of the Hand . 3rd edition. St Louis: Mosby; 1999;
- . Sensitivity of the Jamar dynamometer in detecting submaximal grip effort . J Hand Surg . 1996;21A:402–405
- . Detecting sincerity of effort when measuring grip strength . Am J Phys Med . 1987;66:16–24
PII: S1013-7025(07)70004-0
doi:10.1016/S1013-7025(07)70004-0
© 2006 Elsevier. All rights reserved.
