Subacromial Pain Syndrome
Conditions
Brief summary
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.
Interventions
OTHERSide-lying external rotation exercise with a dumbbell
Side-lying external rotation exercise with a dumbbell (20-30% 1RM). 2 times per week during 4 weeks.
OTHERSide-lying external rotation exercise with a dumbbell with 40% arterial occlusion pressure blood flow restriction
Side-lying external rotation exercise with a dumbbell (20-30% 1RM) with 40% arterial occlusion pressure blood flow restriction. 2 times per week during 4 weeks.
OTHERSide-lying external rotation exercise with a dumbbell with 80% arterial occlusion pressure blood flow restriction
Side-lying external rotation exercise with a dumbbell (20-30% 1RM) with 80% arterial occlusion pressure blood flow restriction. 2 times per week during 4 weeks.
Sponsors
University of Alcala
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No
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.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Conditioned Pain Modulation (CPM) | Baseline, immediately after the first treatment session, 1 month, and 2 months | Conditioned pain modulation estimated using changes in pressure pain threshold measured with a manual algometer and a sphygmomanometer. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Shoulder pain and disability index (SPADI) | Baseline, 1 month, and 2 months | The SPADI ranges from 0% (no disability) to 100% (maximum degree of disability) |
| Pain intensity | Baseline, 1 month, and 2 months | Mean pain intensity during last week measured with a visual analogue scale (VAS), ranging from 0cm (no pain) to 10cm (worst pain) |
| Pain-free isometric strength | Baseline, immediately after the first treatment session, 1 month, and 2 months | Pain-free isometric shoulder external rotation strength measured using a hand-held dynamometer |
Countries
Spain
Outcome results
None listed