The Effects of a Wrist Extensors Exercise With Blood Flow Restriction (BFR) in Lateral Elbow Tendinopathy.

N/AUnknownNCT05919914

University of West Attica20 enrolled

Overview

A randomized cross-over trial comparing the immediate effects of a wrist extensor exercise with and without blood flow restriction (BFR) on pain perception in patients with lateral elbow tendinopathy (LET).

Patients with LET will participate in the study performing an exercise with and without blood flow restriction (BFR) in a randomized order (two occasions). A target of 20 patients for enrollment has been set for 80% power, p\<0.05 (Effect size= 1). Two interventions will be used lasting 40 minutes each. Intervention: A wrist extension exercise (concentric-eccentric) with Blood Flow Restriction (30-15-15-15 reps). Exercises will be performed using dumbbells according to a pain monitoring approach (\<2/10 in numerical pain rating scale). Control Group: A wrist extension exercise (concentric-eccentric) without Blood Flow Restriction (30-15-15-15 reps). Exercises will be performed using dumbbells according to a pain monitoring approach (\<2/10 in numerical pain rating scale). Primary outcomes: pressure pain thresholds lateral epicondyle, cervical spine and tibialis anterior (bilateral). Secondary outcome: pain free grip strength

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Enrollment

Conditions

Lateral Epicondylitis

Interventions

Exercise with Blood Flow Restriction (BFR)OTHER

Wrist extensor exercise (concentric - eccentric) with BFR. BFR involves the reduction of blood flow to working skeletal muscle by applying a flexible cuff to the most proximal portions of a person's arms or legs that results in decreased arterial flow to the exercising muscle and occluded venous return back to the central circulation.

Exercise without Blood Flow Restriction (BFR)OTHER

Wrist extensor exercise (concentric - eccentric)

Eligibility

Sex: ALLMin age: 18 YearsMax age: 60 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Men and women diagnosed with Lateral Elbow Tendinopathy (LET) * Symptoms for over 2 weeks * Pain provoked by palpation on the lateral epicondyle * Positive: Cohen's test, Maudsley test, Mill's test * decrease in pain grip strength \>5% in elbow extension compared to flexion Exclusion Criteria: * Shoulder tendinopathy * Cervical radiculopathy * Rheumatoid arthritis * Neurological deficit * Radial nerve entrapment * Past treatment for the elbow before entering the study * Professional athletes * Lateral elbow tendinopathy of the same side in the last 3 years * Serious cardiovascular diseases * Venous deficiency * History of heart surgery * Cancer history * Breast surgery * Orthopaedic surgeries during the last 6 months * Thrombosis * Body mass Index ≥ 30 * Crohn syndrome * Family or personal history of pulmonary embolism

Locations (2)

University of West Attica

Aigáleo, Attica, Greece

University of West Attica

Aigáleo, Attica, Greece

Outcomes

Primary Outcomes

Pressure pain threshold

Changes between pre- and post- intervention in Pressure Pain Threshold will be measured using bilateral sites on lateral epicondyle, cervical spine and tibialis anterior. The COMPACT DIGITAL ALGOMETER CAPACITIES TO: 100 lbf / 50 kgf / 500 N, will be used by an independent assessor. The assessor will be blinded to participants' group.

Time frame: Baseline and 30 minutes

Secondary Outcomes

Pain free grip strength (PFGS)

'Jamar' hand dynamometer was used, calculating the mean value (kilograms) of 3 efforts, separated by 30-second rest intervals with participants lying in supine position and the elbow fully extended

Time frame: Baseline and 30 minutes

Data from ClinicalTrials.gov

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