NCT Number: NCT07404683
This study aims to analyze the effects of an 8-week strength training program combining different exercise intensities and blood flow restriction (BFR) conditions on safety, tolerability, muscle adaptations, and physical performance variables. Three training modalities will be compared: 1) high-intensity exercise with BFR therapy; 2) low-intensity exercise with BFR therapy; and 3) high-intensity exercise without BFR therapy. All groups will perform the same exercise modality, differing only in intensity and the application of BFR.
Participants will be randomly assigned to one of the three groups and will undergo a 8-week intervention. The variables of interest will be assessed in each group for subsequent analysis and comparison.
Trial opening soon.
Get Notified18 year–65 year
All sexes
Interventional
Not applicable
Healthy volunteers accepted: Yes
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Exclusion criteria
Three exercises: external rotation at 0°, internal rotation at 0° and elevation in the scapular plane. 4 sets (30, 15, 15, reps to fatigue) with a intensity of 70% RM and a 50% of arterial occlusion pressure. 30" rest between sets, 2' rest between exercises.
Three exercises: external rotation at 0°, internal rotation at 0° and elevation in the scapular plane. 4 sets (30, 15, 15, reps to fatigue) with a intensity of 30% RM and a 50% of arterial occlusion pressure. 30" rest between sets, 2' rest between exercises.
Three exercises: external rotation at 0°, internal rotation at 0° and elevation in the scapular plane. 4 sets (30, 15, 15, reps to fatigue) with a intensity of 70% RM and a without flow restriction application (cuff applied without pressure). 30" rest between sets, 2' rest between exercises.
Time frame: Baseline, 4 weeks and 8 weeks
Isometric rotator cuff strength measured with a dynamometer
Time frame: Periprocedural
Rate of perceived exertion (RPE) measured using the Borg scale (0-10)
Time frame: 8 weeks
Participant tolerance to the training protocol will be assessed at the end of the intervention using a 5-point Likert scale, ranging from very well tolerated (5), well tolerated (4), neutral (3), poorly tolerated (2), to very poorly tolerated (1).
Time frame: Immediately after the intervention, 1 hour, 6 hours, 24 hours, 1 week
Occurrence of adverse effects (e.g., pain, delayed onset muscle soreness, sudden weakness of the trained limb, redness or swelling of the trained limb, etc.) by self-report
Time frame: Periprocedural
Surface electromyography for the study of muscle recruitment (middle deltoid, infraspinatus, teres minor and trapezius muscles)
Time frame: Baseline, 4 weeks, 8 weeks
Muscle thickness of the deltoid, biceps brachii, infraspinatus, supraspinatus and subescapularis will be assessed using ultrasound imaging
Contact information is provided by the study sponsor or research team.
University of Valencia
Other
Safety, Utility and Effects After 8 Weeks of High-intensity Strength Training With Blood Flow Restriction in the Rotator Cuff
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