NCT03695042

Brief Summary

The purpose of this study is to examine the effect that blood flow restriction training will have on patients with concussion who demonstrate an intolerance to physical activity. Progressive exercise training has been shown to effectively reduce the effects of concussion and facilitate return to academic and athletic activities. In many cases, exercises intolerance is present in these patients which hinders progression. In musculoskeletal conditions, blood flow restriction training, when combined with low load exercise, has been shown to produce similar gains as high load exercises. If a patient being treated for concussion can tolerate low load exercise without concussive symptoms, then blood flow restriction may increase exercise gains by facilitating autonomic responses similar to high load training. This study will explore this hypothesis in patients between the ages of 14 and 30 who are referred for physical therapy intervention which is the standard of care at Duke Sports Sciences Concussion Clinic. Blood flow restriction training is also used in multiple patient populations at Duke Sports Physical Therapy without adverse events.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
4

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jan 2019

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
terminated

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

October 2, 2018

Completed
1 day until next milestone

First Posted

Study publicly available on registry

October 3, 2018

Completed
3 months until next milestone

Study Start

First participant enrolled

January 15, 2019

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 15, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 15, 2022

Completed
Last Updated

November 22, 2024

Status Verified

November 1, 2024

Enrollment Period

3.9 years

First QC Date

October 2, 2018

Last Update Submit

November 20, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in Post Concussion Symptom Score

    The Post Concussion Symptoms Score is a self-reported measurement of symptoms associated with concussion with items ranked from 0 (no symptoms) to 6 (severe symptoms)

    Baseline and 8 weeks

Secondary Outcomes (5)

  • Change in Global Function Rating

    Baseline and 8 weeks

  • Change in Heart Rate Variability

    1 week, 3 weeks, 6 weeks, 8 weeks

  • Change in Presence of Orthostatic Tachycardia

    Baseline, 1 week, 2 weeks

  • Change in Presence of Orthostatic Symptoms (Headache)

    Baseline, 1 week, 2 weeks

  • Change in Presence of Orthostatic Symptoms (dizziness/light headedness)

    Baseline, 1 week, 2 weeks

Study Arms (2)

BFR THEN without BFR

EXPERIMENTAL

Will perform exercises with BFR at the first visit and without BFR at the second visit

Other: Blood Flow Restriction Training with Exercise

Without BFR THEN with BFR

EXPERIMENTAL

Will perform exercises without BFR at the first visit and with BFR at the second visit

Other: Blood Flow Restriction Training with Exercise

Interventions

The addition of BFR training to an exercise program prescribed for a patient participating in physical therapy for concussion treatment. BFR training partially occludes blood flow to extremities during exercise. This allows one to exercise at lower loads and still gain benefits similar to exercise at higher loads

BFR THEN without BFRWithout BFR THEN with BFR

Eligibility Criteria

Age14 Years - 30 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Ability to read, write, and speak the English language Diagnosis of Post-Concussion Syndrome (medical diagnosis of concussion with symptoms lasting greater than four weeks.
  • Increased symptoms with physical activity Ages 14-30 years old

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Duke Sports Science Institute

Durham, North Carolina, 27710, United States

Location

MeSH Terms

Conditions

Post-Concussion Syndrome

Interventions

Blood Flow Restriction TherapyExercise

Condition Hierarchy (Ancestors)

Brain ConcussionHead Injuries, ClosedCraniocerebral TraumaTrauma, Nervous SystemNervous System DiseasesWounds and InjuriesWounds, Nonpenetrating

Intervention Hierarchy (Ancestors)

Exercise TherapyRehabilitationAftercareContinuity of Patient CarePatient CareTherapeuticsPhysical Therapy ModalitiesMotor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Officials

  • Laura Pietrosimone

    Duke University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 2, 2018

First Posted

October 3, 2018

Study Start

January 15, 2019

Primary Completion

December 15, 2022

Study Completion

December 15, 2022

Last Updated

November 22, 2024

Record last verified: 2024-11

Data Sharing

IPD Sharing
Will not share

Locations