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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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Eccentric exercise | Active Comparator | Only multi-joint eccentric exercise |
|
| Eccentric training with blood flow restriction | Experimental | Multi-joint eccentric exercise with blood flow restriction |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Eccentric exercise / Eccentric exercise with blood flow restriction | Device | Individuals will be randomized to receive eccentric exercise only, or eccentric exercise with blood flow restriction. |
| Measure | Description | Time Frame |
|---|---|---|
| visual analog scale (soreness) | soreness | Baseline (pretest) |
| visual analog scale (soreness) | soreness | immediately post exercise |
| visual analog scale (soreness) | soreness | 24 hours post exercise |
| visual analog scale (soreness) | soreness | 48 hours post exercise |
| visual analog scale (soreness) | soreness | 72 hours post exercise |
| force algometer (soreness) | soreness | Baseline (pretest) |
| force algometer (soreness) | soreness | immediately post exercise |
| force algometer (soreness) | soreness | 24 hours post exercise |
| force algometer (soreness) | soreness | 48 hours post exercise |
| Measure | Description | Time Frame |
|---|---|---|
| Eccentric muscle strength | muscle strength will be assessed on the Eccentron. | Baseline (pretest) |
| Eccentric muscle strength | muscle strength will be assessed on the Eccentron. |
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Exclusion Criteria:
Inclusion criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Brennan J Thompson, PhD | Contact | 435-797-5785 | brennan.thompson@usu.edu | |
| Sara Harper, PhD | Contact | 435-797-1376 | sara.harper@usu.edu |
| Name | Affiliation | Role |
|---|---|---|
| Brennan Thompson, PhD | Utah State University | Principal Investigator |
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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.
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| force algometer (soreness) | soreness | 72 hours post exercise |
| immediately post exercise |
| Eccentric muscle strength | muscle strength will be assessed on the Eccentron. | 24 hours post exercise |
| Eccentric muscle strength | muscle strength will be assessed on the Eccentron. | 48 hours post exercise |
| Eccentric muscle strength | muscle strength will be assessed on the Eccentron. | 72 hours post exercise |
| Single-leg hop | 3 single-leg hops per limb | Baseline (pretest) |
| Single-leg hop | 3 single-leg hops per limb | immediately post exercise |
| Single-leg hop | 3 single-leg hops per limb | 24 hours post exercise |
| Single-leg hop | 3 single-leg hops per limb | 48 hours post exercise |
| Single-leg hop | 3 single-leg hops per limb | 72 hours post exercise |