Blood Flow Restriction Training
Conditions
Brief summary
This study will randomize healthy adults who regularly perform resistance training exercises for the lower extremities (2x a week) to one of three groups: a blood flow restriction (BFR) exercise group that trains 2x a week, a BFR exercise group that trains 5x a week, and a control group that does not perform any additional BFR exercise. Those randomized to the BFR groups will perform the unilateral 90-0 knee extension exercise followed by the bilateral squat. Subjects will have the BFR applied to their dominant lower extremity and will perform 4 sets (30/15/15/15 reps) per exercise. Training will initial start at 30% of 1RM with training intensity increased by 5% every 2 weeks. The training program will last 8 weeks. Pre- and posttests include ultrasound imaging of the dominant leg rectus femoris and strength testing via hand held dynamometry.
Interventions
OTHER5x a week BFR training group
This group will perform the two exercises 5x a week with blood flow restriction, set to 80% of limb occlusion pressure, applied to the dominant thigh.
OTHER2x a week BFR training group
This group will perform the two exercises 2x a week with blood flow restriction, set to 80% of limb occlusion pressure, applied to the dominant thigh.
Sponsors
George Fox University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Masking description
The outcomes assessors are blinded to group allocation.
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
healthy adults 18 years of age who currently perform weight-lifting (i.e., resistance training) exercise 2x a week. \-
Exclusion criteria
current musculoskeletal injury; surgery to the low back or lower extremities during the prior year; one or more contraindications to blood flow restriction training. \-
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Muscular strength | 8 weeks | Hand held dynamometry will be used to assess changes in strength (bilaterally) for the quadricep, hip extensors, and hip abductors. |
| Cross-sectional area of the rectus femoris | 8 weeks | Ultrasound imaging will measure the cross-sectional area of the rectus femoris |
Countries
United States
Contacts
Primary ContactJason Brumitt, PhD
Outcome results
None listed