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Updated: May 27, 2026
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Measurement of Spatial Stability in Precision Grip
Published on: June 4, 2020
Effect of lateral epicondylosis on grip force development
Amrish O Chourasia1, Kevin A Buhr, David P Rabago
1Department of Biomedical Engineering, University of Wisconsin, Madison, Wisconsin, USA.
Summary
Lateral epicondylosis (LE) impairs rapid grip force generation, leading to reduced rate of force development and increased electromechanical delay. These deficits, alongside decreased grip strength, may increase reaction time and symptom recurrence risk in patients with LE.
Area of Science:
- Orthopedics
- Sports Medicine
- Rehabilitation Science
Background:
- Lateral epicondylosis (LE) is known to negatively impact grip strength.
- The specific effects of LE on rapid grip force generation remain less understood.
Purpose of the Study:
- To investigate the impact of lateral epicondylosis on the capacity for rapid grip force production.
Main Methods:
- A case-control study involving 28 participants with LE and 13 healthy controls.
- Grip strength and rapid grip force generation were assessed using a multiaxis profile dynamometer.
- Electromechanical delay, rate of force development, pain, functional disability (PRTEE), and tendon degeneration (MRI) were evaluated.
Main Results:
- LE-affected extremities exhibited diminished rate of force development and grip strength compared to unaffected extremities.
- Participants with LE demonstrated a significantly longer electromechanical delay than controls.
- Peak rate of force development showed a stronger correlation with functional outcomes (PRTEE function) than grip strength or electromechanical delay in the LE group.
Conclusions:
- Lateral epicondylosis leads to reduced grip strength, slower force development, and delayed muscle activation.
- These impairments may elevate reaction time, potentially increasing the risk of recurrent symptoms.
- Therapeutic interventions for LE should consider addressing both strength deficits and impaired rapid force generation.
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