Blood Flow Restriction
Conditions
Brief summary
The purpose of this study is to compare the muscle strength and muscle soreness effects experienced following short term (acute) eccentric exercise with and without blood flow restriction (BFR) performed at low - moderate training intensities.
Interventions
Individuals will be randomized to receive eccentric exercise only, or eccentric exercise with blood flow restriction.
Sponsors
Study design
Intervention model description
Individuals will be randomly assigned to a BFR or non BFR exercise condition. The subjects will perform a single, 3-5 minute bout of eccentric exercise on the Eccentron device either with BFR (with restriction cuffs on the thigh per the procedures below) or without the BFR.
Eligibility
Exclusion criteria
* lower body surgery or injury in the last 12 months * have any neuromuscular disease * height \>76 inches tall * height \<54 inches tall * eccentric strength greater than 725 pounds * pregnant or plan to be pregnant in the duration of the protocol * don't do resistance exercise at least once per week * perform intense cardio or strength training \>4 days per week * Present with any other significant comorbid conditions that would impair the ability to participate in the exercise-based testing Inclusion criteria: * 18 - 30 years old * strength train lower body 1-3 times per week
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| visual analog scale (soreness) | Baseline (pretest) | soreness |
| force algometer (soreness) | Baseline (pretest) | soreness |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Eccentric muscle strength | Baseline (pretest) | muscle strength will be assessed on the Eccentron. |
| Single-leg hop | Baseline (pretest) | 3 single-leg hops per limb |