Study Stopped
unable to finish the study prior to graduation from residency
Blood Flow Restriction Therapy Following Acute Shoulder Injury Patients
BFR
1 other identifier
interventional
3
1 country
1
Brief Summary
Atrophy and weakness of the shoulder are a common problem following treatment of a number of shoulder and elbow pathologies. Even with relatively short periods of reduced activity, the magnitude of muscle loss can be quite substantial.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Apr 2024
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 16, 2024
CompletedFirst Posted
Study publicly available on registry
January 25, 2024
CompletedStudy Start
First participant enrolled
April 13, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 18, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
October 18, 2024
CompletedResults Posted
Study results publicly available
November 4, 2025
CompletedNovember 4, 2025
November 1, 2024
6 months
January 16, 2024
September 12, 2025
October 20, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (39)
Shoulder Muscle Strength Analysis: External Rotation (ER) Peak Torque Average (60 Degrees/Second)
measuring shoulder strength in injured and non-injured arms for both study groups using a Biodex testing machine - Low Score indicates low torque/strength, high score indicates high torque/strength
Baseline
Shoulder Muscle Strength Analysis: External Rotation (ER) Peak Torque Average (60 Degrees/Second)
measuring shoulder strength in injured and non-injured arms for both study groups using a Biodex testing machine - Low Score indicates low torque/strength, high score indicates high torque/strength
Week 6
Shoulder Muscle Strength Analysis: External Rotation (ER) Peak Torque Average (180 Degrees/Second)
Low Score indicates low torque/strength, high score indicates high torque/strength
Baseline
Shoulder Muscle Strength Analysis: External Rotation (ER) Peak Torque Average (180 Degrees/Second)
Low Score indicates low torque/strength, high score indicates high torque/strength
Week 6
Shoulder Muscle Strength Analysis: External Rotation (ER) Peak Torque Average (300 Degrees/Second)
Low Score indicates low torque/strength, high score indicates high torque/strength
Baseline
Shoulder Muscle Strength Analysis: External Rotation (ER) Peak Torque Average (300 Degrees/Second)
Low Score indicates low torque/strength, high score indicates high torque/strength
Week 6
Shoulder Muscle Strength Analysis: Internal Rotation (IR) Peak Torque Average (60 Degrees/Second)
Low Score indicates low torque/strength, high score indicates high torque/strength
Baseline
Shoulder Muscle Strength Analysis: Internal Rotation (IR) Peak Torque Average (60 Degrees/Second)
Low Score indicates low torque/strength, high score indicates high torque/strength
Week 6
Shoulder Muscle Strength Analysis: Internal Rotation (IR) Peak Torque Average (180 Degrees/Second)
Low Score indicates low torque/strength, high score indicates high torque/strength
Baseline
Shoulder Muscle Strength Analysis: Internal Rotation (IR) Peak Torque Average (180 Degrees/Second)
Low Score indicates low torque/strength, high score indicates high torque/strength
Week 6
Shoulder Muscle Strength Analysis: Internal Rotation (IR) Peak Torque Average (300 Degrees/Second)
Low Score indicates low torque/strength, high score indicates high torque/strength
Baseline
Shoulder Muscle Strength Analysis: Internal Rotation (IR) Peak Torque Average (300 Degrees/Second)
Low Score indicates low torque/strength, high score indicates high torque/strength
Week 6
Rotator Cuff Muscle Cross Sectional Area (CSA) Measurement: Supraspinatus
Ultrasound will be used to quantify the changes in rotator cuff muscle and distal biceps cross-sectional area before and after therapy. The same multifrequency linear probe (7.5-9.0 MHz, Elegra; Siemens Medical Solutions, Erlangen, Germany) will be used throughout the study.
Baseline
Rotator Cuff Muscle Cross Sectional Area (CSA) Measurement: Supraspinatus
Ultrasound will be used to quantify the changes in rotator cuff muscle and distal biceps cross-sectional area before and after therapy. The same multifrequency linear probe (7.5-9.0 MHz, Elegra; Siemens Medical Solutions, Erlangen, Germany) will be used throughout the study.
Week 3
Rotator Cuff Muscle Cross Sectional Area (CSA) Measurement: Supraspinatus
Ultrasound will be used to quantify the changes in rotator cuff muscle and distal biceps cross-sectional area before and after therapy. The same multifrequency linear probe (7.5-9.0 MHz, Elegra; Siemens Medical Solutions, Erlangen, Germany) will be used throughout the study.
Week 6
Rotator Cuff Muscle Cross Sectional Area (CSA) Measurement: Infraspinatus
Ultrasound will be used to quantify the changes in rotator cuff muscle and distal biceps cross-sectional area before and after therapy. The same multifrequency linear probe (7.5-9.0 MHz, Elegra; Siemens Medical Solutions, Erlangen, Germany) will be used throughout the study.
Baseline
Rotator Cuff Muscle Cross Sectional Area (CSA) Measurement: Infraspinatus
Ultrasound will be used to quantify the changes in rotator cuff muscle and distal biceps cross-sectional area before and after therapy. The same multifrequency linear probe (7.5-9.0 MHz, Elegra; Siemens Medical Solutions, Erlangen, Germany) will be used throughout the study.
Week 3
Rotator Cuff Muscle Cross Sectional Area (CSA) Measurement: Infraspinatus
Ultrasound will be used to quantify the changes in rotator cuff muscle and distal biceps cross-sectional area before and after therapy. The same multifrequency linear probe (7.5-9.0 MHz, Elegra; Siemens Medical Solutions, Erlangen, Germany) will be used throughout the study.
Week 6
Visual Analog Scale (VAS) for PAIN - Baseline Scores
Patients will receive questionnaires (VAS) at Baseline, Week 6, 6 and 12 months after completing rehabilitation - The VAS score can be interpreted into categories of pain or symptom intensity: 0-4 mm: No pain. 5-44 mm: Mild pain. 45-74 mm: Moderate pain. 75-100 mm: Severe pain.
Baseline
Visual Analog Scale (VAS) for PAIN - Week 6 Scores
Patients will receive questionnaires (VAS) at Baseline, Week 6, 6 and 12 months after completing rehabilitation - The VAS score can be interpreted into categories of pain or symptom intensity: 0-4 mm: No pain. 5-44 mm: Mild pain. 45-74 mm: Moderate pain. 75-100 mm: Severe pain.
Week 6
Visual Analog Scale (VAS) for PAIN - Month 6 Scores
Patients will receive questionnaires (VAS) at Baseline, Week 6, 6 and 12 months after completing rehabilitation - The VAS score can be interpreted into categories of pain or symptom intensity: 0-4 mm: No pain. 5-44 mm: Mild pain. 45-74 mm: Moderate pain. 75-100 mm: Severe pain.
Month 6
Visual Analog Scale (VAS) for PAIN - Month 12 Scores
Patients will receive questionnaires (VAS) at Baseline, Week 6, 6 and 12 months after completing rehabilitation - The VAS score can be interpreted into categories of pain or symptom intensity: 0-4 mm: No pain. 5-44 mm: Mild pain. 45-74 mm: Moderate pain. 75-100 mm: Severe pain.
Month 12
American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form (ASES) Baseline Scores
The American Shoulder and Elbow Surgeons (ASES) shoulder score is a patient-completed assessment for shoulder function and pain, ranging from 0 to 100, with higher scores indicating better function. Scoring involves a 50-point pain component derived from a visual analog scale (VAS), and a 50-point functional component from 10 activities of daily living questions, which are then weighted and added for the final score
Baseline
American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form (ASES) Week 6 Scores
The American Shoulder and Elbow Surgeons (ASES) shoulder score is a patient-completed assessment for shoulder function and pain, ranging from 0 to 100, with higher scores indicating better function. Scoring involves a 50-point pain component derived from a visual analog scale (VAS), and a 50-point functional component from 10 activities of daily living questions, which are then weighted and added for the final score
Week 6
American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form (ASES) Month 6 Scores
The American Shoulder and Elbow Surgeons (ASES) shoulder score is a patient-completed assessment for shoulder function and pain, ranging from 0 to 100, with higher scores indicating better function. Scoring involves a 50-point pain component derived from a visual analog scale (VAS), and a 50-point functional component from 10 activities of daily living questions, which are then weighted and added for the final score
Month 6
American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form (ASES) Month 12 Scores
The American Shoulder and Elbow Surgeons (ASES) shoulder score is a patient-completed assessment for shoulder function and pain, ranging from 0 to 100, with higher scores indicating better function. Scoring involves a 50-point pain component derived from a visual analog scale (VAS), and a 50-point functional component from 10 activities of daily living questions, which are then weighted and added for the final score
Month 12
Disabilities of the Arm, Shoulder, and Hand Scale (DASH) Baseline Scores
The DASH score for patients ranges from 0 to 100, with 0 representing no disability and 100 indicating the greatest possible functional impairment of the upper extremity. Patients answer a 30-item questionnaire on a five-point scale (0-4 or 0-5 depending on the scale used), rating their ability to perform tasks and their symptoms. The sum of the raw scores is then transformed into the final 0-100 DASH score
Baseline
Disabilities of the Arm, Shoulder, and Hand Scale (DASH) Week 6 Scores
The DASH score for patients ranges from 0 to 100, with 0 representing no disability and 100 indicating the greatest possible functional impairment of the upper extremity. Patients answer a 30-item questionnaire on a five-point scale (0-4 or 0-5 depending on the scale used), rating their ability to perform tasks and their symptoms. The sum of the raw scores is then transformed into the final 0-100 DASH score
Week 6
Disabilities of the Arm, Shoulder, and Hand Scale (DASH) Month 6 Scores
The DASH score for patients ranges from 0 to 100, with 0 representing no disability and 100 indicating the greatest possible functional impairment of the upper extremity. Patients answer a 30-item questionnaire on a five-point scale (0-4 or 0-5 depending on the scale used), rating their ability to perform tasks and their symptoms. The sum of the raw scores is then transformed into the final 0-100 DASH score
Month 6
Disabilities of the Arm, Shoulder, and Hand Scale (DASH) Month 12 Scores
The DASH score for patients ranges from 0 to 100, with 0 representing no disability and 100 indicating the greatest possible functional impairment of the upper extremity. Patients answer a 30-item questionnaire on a five-point scale (0-4 or 0-5 depending on the scale used), rating their ability to perform tasks and their symptoms. The sum of the raw scores is then transformed into the final 0-100 DASH score
Month 12
GH Levels - Baseline
Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels
Baseline
GH Levels - Week 3
Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels
Week 3
GH Levels - Week 6
Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels
Week 6
IGF-1 Levels - Baseline
Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels
Baseline
IGF-1 Levels - Week 3
Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels
Week 3
IGF-1 Levels - Week 6
Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels
Week 6
IL-6 Levels - Baseline
Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels
Baseline
IL-6 Levels - Week 3
Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels
Week 3
IL-6 Levels - Week 6
Patients will receive the blood draws in the physical therapy clinic - ELISA will be used to quantify plasma levels
Week 6
Study Arms (2)
Blood Flow Restriction (BFR)
EXPERIMENTALBlood Flow Restriction (BFR) pressurized per standard protocols in addition to our institutional rehabilitation protocol
"sham" Blood Flow Restriction (BFR)
SHAM COMPARATORrehabilitation using "sham BFR" as well as our institutional rehabilitation protocol
Interventions
In the BFR group, the tourniquet will be pressurized to 50% limb occlusion pressure (LOP), which is the pressure necessary for occluding 50% of arterial limb flow in the upper extremity.
In the sham BFR group, the tourniquet will be pressurized to 0% occlusion pressure, while maintaining enough pressure to keep the tourniquet in place.
Eligibility Criteria
You may qualify if:
- injured patient with clinical and magnetic resonance imaging (MRI) consistent with a formal diagnosis of non-operative rotator cuff and/or biceps tendinopathy
- no prior upper extremity ipsilateral procedures or history of deep vein thrombosis
- those willing to be part of the study
You may not qualify if:
- patients younger than 18 or older than 55 years of age
- a history of revision surgery or prior ipsilateral upper extremity surgery
- concomitant ligamentous, tendinous, or cartilage injury that would alter postoperative rehabilitation protocol
- inability to comply with the proposed follow-up clinic visits
- patients lacking decisional capacity
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Wake Forest University Health Sciences
Winston-Salem, North Carolina, 27157, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Kristen Faith Nicholson, PhD
- Organization
- Wake Forest University Health Sciences
Study Officials
- PRINCIPAL INVESTIGATOR
Kristen Nicholson, MD
Wake Forest University Health Sciences
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 16, 2024
First Posted
January 25, 2024
Study Start
April 13, 2024
Primary Completion
October 18, 2024
Study Completion
October 18, 2024
Last Updated
November 4, 2025
Results First Posted
November 4, 2025
Record last verified: 2024-11
Data Sharing
- IPD Sharing
- Will not share