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Forces in the normal and abnormal hand | JoVE Visualize

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Mathematical Sciences

Forces in the normal and abnormal hand

K N An, E Y Chao, W P Cooney

Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society|January 1, 1985

View abstract on PubMed

Summary

A new analytic model of human hand forces was created using cadaveric data. This model analyzes muscle and joint forces for various hand functions and abnormal conditions.

Area of Science:

Biomechanics
Human Anatomy
Musculoskeletal System Analysis

Background:

Understanding human hand biomechanics is crucial for analyzing function and dysfunction.
Existing models may not fully capture the complex interplay of muscles and joints during isometric tasks.
Cadaveric studies provide a foundation for detailed anatomical and force distribution analysis.

Purpose of the Study:

To develop an analytic model for human hand force analysis.
To determine muscle and joint force distributions during isometric hand functions.
To explore applications of the model in studying hand pathologies and surgical interventions.

Main Methods:

Anatomical study of multiple cadaveric hand specimens.
Development of a computational method for force distribution analysis.
Application of the model to simulate isometric hand functions.

Main Results:

An analytic model for human hand force analysis was successfully developed.
The model can determine muscle and joint force distributions for various isometric hand functions.
The model's utility in analyzing conditions like tendon laceration and neuromuscular weakness was demonstrated.

Conclusions:

The developed analytic model provides a robust framework for human hand force analysis.
This model has significant potential for clinical applications, including the evaluation of hand injuries and surgical outcomes.
Further research can refine the model and expand its applications in hand biomechanics and rehabilitation.

Applied Mathematics

Theoretical And Applied Mechanics

Forces In The Normal And Abnormal Hand