Elbow

Effect of Lateral Epicondylosis on Grip Force Development

Chourasia AO, Buhr KA, Rabago DP, et al (Univ of Wisconsin, Madison) J Hand Ther 25:27-37, 2012^§

Abstract

Study Design

Case-Control.

Introduction

Although it is well known that grip strength is adversely affected by lateral epicondylosis (LE), the effect of LE on rapid grip force generation is unclear.

Purpose of the Study

To evaluate the effect of LE on the ability to rapidly generate grip force.

Methods

Twenty-eight participants with LE (13 unilateral and 15 bilateral LE) and 13 healthy controls participated in this study. A multiaxis profile dynamometer was used to evaluate grip strength and rapid grip force generation. The ability to rapidly produce force is composed of the electromechanical delay and rate of force development. Electromechanical delay is defined as the time between the onset of electrical activity and the onset of muscle force production. The Patient-rated Tennis Elbow Evaluation (PRTEE) questionnaire was used to assess pain and functional disability. Magnetic resonance imaging was used to evaluate tendon degeneration.

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