The hypoalgesic effects of wrist extensors training with blood flow restriction in patients with lateral elbow tendinopathy: a study protocol for a cross-over randomized controlled trial

Stefanos Karanasios; George Gioftsos

doi:10.18203/2349-3259.ijct20233553

Authors

Stefanos Karanasios Department of Physiotherapy, School of Health and Care Sciences, University of West Attica, Aigaleo, Greece
George Gioftsos Department of Physiotherapy, School of Health and Care Sciences, University of West Attica, Aigaleo, Greece

DOI:

https://doi.org/10.18203/2349-3259.ijct20233553

Keywords:

Exercise, Hypoalgesia, Pressure pain threshold, Tennis elbow

Abstract

Background: Lateral elbow tendinopathy (LET) is a disabling overuse injury with a significant healthcare burden. Despite the fact that exercise interventions are considered the best recommended treatment option of LET, their effectiveness in reducing pain and improving function remains debatable. The aim of our study is to evaluate the immediate effects of a new method of exercise using blood flow restriction (BFR) on pain perception and pain-free grip strength in patients with LET.

Methods: This study was designed as a cross-over randomized controlled trial. We will compare an intervention using wrist extensors training with (WET-BFR) to a control intervention using WET-without-BFR in patients with LET. All measurements will be taken by a blinded assessor pre- and post-intervention. Primary outcome measures will be the changes in pressure pain thresholds at the lateral epicondyle, extensor carpi radialis brevis, C4 vertebra and tibialis anterior. Secondary outcome measure will be the changes in pain-free grip strength ratio.

Conclusions: New approaches are needed to improve the treatment outcomes in LET. Although BFR training was found more effective in improving function and treatment success than conventional training, the effects on pain intensity were poor. Our hypothesis is that using the best BFR practice guidelines for wrist extensors training might be more effective to reduce pain sensitivity compared with non-BFR training in patients with LET. The trial will provide new research data to inform clinical practice regarding the effects of using BFR training in the current patient group.

Trial registration: University of West Attica ethics committee: 9150/01-02-2023, ClinicalTrials.gov: NCT05919914

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