Effects of Blood Flow Restriction Training in Rotator Cuff Related Shoulder Pain

University of Alcala

Status: Withdrawn

Conditions: Subacromial Pain Syndrome

Treatments: Other: Side-lying external rotation exercise with a dumbbell with 40% arterial occlusion pressure blood flow restriction; Other: Side-lying external rotation exercise with a dumbbell with 80% arterial occlusion pressure blood flow restriction; Other: Side-lying external rotation exercise with a dumbbell

Study type: Interventional

Funder types: Other

Identifiers

NCT04834271

2020/57

Details and patient eligibility

About

Blood flow restriction training is widespread in sport performance areas, where it has proven to be beneficial in strength and hypertrophy development. However, there are only few studies related to its effects on subjects with pathology, and currently, there is no recent clinical trial evaluating its effects on patients with RCRSP. We are aiming to define the potential benefits, acute and short-term effects of adding blood flow restriction to a low-load exercise training for patients with RCRSP.

Sex: All

Ages: 18 to 65 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Pain around the antero-lateral (deltoid area) region of the proximal shoulder during active movements in abduction and/or external rotation.
• 3/5 positive impingement tests: Neer, Hawkins-Kennedy, empty can, painful arc, and resisted external rotation or abduction.
• Pain at rest less than 3cm in a visual analogue scale (VAS).

Exclusion criteria

• Previous shoulder surgery.
• Being treated with physical therapy or pharmacogical therapy for shoulder pain.
• External rotation range of motion less than 45º or 50% compared to the contralateral side.
• Suspected shoulder instability (previous dislocation/subluxation, sulcus sign, anterior drawer test, anterior/posterior aprehension test, relocation test).
• Suspected cervical radiculopathy (distraction, spurling, ULNT1, squeeze test, ipsilateral rotation less than 60º)
• Presence of neck pain.
• Suspected rotator cuff tears (drop arm test, external rotation lag sign, diagnostic imaging).
• Contraindications to blood flow restriction therapy.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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0 participants in 3 patient groups

Exercise without blood flow restriction

Active Comparator group

Description:

Side-lying external rotation exercise with a dumbbell (20-30% 1RM) without blood flow restriction.

Treatment:

Other: Side-lying external rotation exercise with a dumbbell

Exercise with 40% of arterial occlusion pressure blood flow restriction

Experimental group

Description:

Side-lying external rotation exercise with a dumbbell (20-30% 1RM) with 40% of arterial occlusion pressure blood flow restriction.

Treatment:

Other: Side-lying external rotation exercise with a dumbbell with 40% arterial occlusion pressure blood flow restriction

Exercise with 80% of arterial occlusion pressure blood flow restriction

Experimental group

Description:

Side-lying external rotation exercise with a dumbbell (20-30% 1RM) with 80% of arterial occlusion pressure blood flow restriction.

Treatment:

Other: Side-lying external rotation exercise with a dumbbell with 80% arterial occlusion pressure blood flow restriction