Arch Plast Surg.  2013 Jan;40(1):52-56. 10.5999/aps.2013.40.1.52.

Normative Measurements of Grip and Pinch Strengths of 21st Century Korean Population

Affiliations
  • 1Department of Plastic and Reconstructive Surgery, Gwangmyeong Sung-Ae General Hospital, Gwangmyeong, Korea. psczero@gmail.com
  • 2Department of Hand and Microsurgery, The Armed Forces Capital Hospital, Seongnam, Korea.

Abstract

BACKGROUND
Measuring grip and pinch strength is an important part of hand injury evaluation. Currently, there are no standardized values of normal grip and pinch strength among the Korean population, and lack of such data prevents objective evaluation of post-surgical recovery in strength. This study was designed to establish the normal values of grip and pinch strength among the healthy Korean population and to identify any dependent variables affecting grip and pinch strength.
METHODS
A cross-sectional study was carried out. The inclusion criterion was being a healthy Korean person without a previous history of hand trauma. The grip strength was measured using a Jamar dynamometer. Pulp and key pinch strength were measured with a hydraulic pinch gauge. Intra-individual and inter-individual variations in these variables were analyzed in a standardized statistical manner.
RESULTS
There were a total of 336 healthy participants between 13 and 77 years of age. As would be expected in any given population, the mean grip and pinch strength was greater in the right hand than the left. Male participants (137) showed mean strengths greater than female participants (199) when adjusted for age. Among the male participants, anthropometric variables correlated positively with grip strength, but no such correlations were identifiable in female participants in a statistically significant way.
CONCLUSIONS
Objective measurements of hand strength are an important component of hand injury evaluation, and population-specific normative data are essential for clinical and research purposes. This study reports updated normative hand strengths of the South Korean population in the 21st century.

Keyword

Hand strength; Pinch strength; Muscle dynamometer; Korean population; Demographic transition

MeSH Terms

Cross-Sectional Studies
Female
Hand
Hand Injuries
Hand Strength
Humans
Male
Pinch Strength
Population Dynamics
Reference Values
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