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Related Experiment Videos

A new manual power grip.

N M Dawson1, P Felle, D K O'Donovan

  • 1Department of Human Anatomy and Physiology, University College Dublin, Ireland. niamh.dawson@ucd.ie

Acta Anatomica
|March 11, 1999
PubMed
Summary
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A novel manual power grip with a relaxed index finger enhances grip strength and wrist mobility compared to traditional grips. This innovation is relevant for athletes and firearm users.

Area of Science:

  • Biomechanics
  • Human factors engineering
  • Ergonomics

Background:

  • The conventional oblique power grip is widely used for cylindrical objects.
  • Optimizing grip strength and wrist mobility is crucial in various physical activities and tool use.
  • Existing grip analysis methods may not fully capture the nuances of different grip types and wrist positions.

Purpose of the Study:

  • To describe and analyze a novel manual power grip utilizing a relaxed index finger.
  • To compare the grip strength and wrist mobility of this new grip against the conventional oblique power grip.
  • To introduce a new cylindrical strain gauge dynamometer for comprehensive grip and wrist assessment.

Main Methods:

  • A new grip technique involving a relaxed index finger for cylindrical objects was developed and described.

Related Experiment Videos

  • Grip strength was measured in 21 young adult students using the novel grip and the conventional oblique power grip.
  • Wrist mobility (adduction-abduction range) was assessed, and a new cylindrical strain gauge dynamometer was utilized for testing various grip types and wrist positions, alongside a goniometer.

    • Main Results:

    • The novel manual power grip demonstrated greater grip strength compared to the conventional oblique power grip.
    • A significant increase in the range of adduction-abduction at the wrist was observed with the new grip.
    • The developed dynamometer effectively allowed testing of multiple grip types and wrist positions.

    Conclusions:

    • The relaxed index finger manual power grip offers superior grip strength and enhanced wrist mobility.
    • This grip technique has practical applications, evidenced by its empirical use in racquet sports and its adoption in modern firearm design.
    • The new dynamometer provides a versatile tool for future research in grip biomechanics and ergonomics.