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[Classification of hand and its significance]
Zhonghua Wai Ke Za Zhi [Chinese Journal of Surgery]
|February 1, 1994
Summary
This study measured normal hand appearance and thumb function in 102 men, finding correlations between hand measurements and classifying male Chinese hands into five types based on these findings.
Area of Science:
- Anatomy
- Anthropometry
- Biomechanics
Background:
- Understanding normal hand morphology and function is crucial for clinical assessments and ergonomic design.
- Previous studies have focused on specific hand dimensions, but comprehensive analyses correlating appearance and function are limited.
Purpose of the Study:
- To establish normal values for hand appearance and thumb movements in adult males.
- To investigate correlations between various hand and thumb measurements.
- To develop a classification system for male Chinese hands based on anthropometric data.
Main Methods:
- Anthropometric measurements of hand appearance and thumb movements were recorded in 102 healthy adult male volunteers.
- Correlation analysis was performed on key indices: hand length/width, thumb length/first web distance, and thumb adduction/opposition.
- A classification system was derived from established correlation charts and formulae.
Main Results:
- Normal ranges for hand appearance and thumb movement were established.
- Significant positive correlations were observed between different hand appearance indices.
- A five-type classification system for male Chinese hands was proposed based on anthropometric correlations.
Conclusions:
- Hand appearance and function exhibit interconnected characteristics, even when some measurements deviate from extremes.
- The established correlations provide a basis for understanding hand morphology.
- The proposed classification system offers a novel approach to categorizing hand types in the studied population.