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Both BFR and intermittent pneumatic compression are purported to decrease symptoms associated with exercise induced muscle damage (EIMD) that cause delayed onset muscle soreness (DOMS). Blood flow restriction relies on applying pressurized cuffs to the most proximal portion of the limb. Another form of recovery often relied upon is pneumatic compression. The mechanism by which pneumatic compression works is similar to that of a massage, whereby the device progressively increases the pressure on a portion of the limb before releasing and moving further up the limb.The purpose of this study is determine whether BFR or pneumatic compression can be used to decreased DOMS which may indicate enhanced recovery.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Control | No Intervention | The participants will be asked to refrain from exercise 24 hours prior to and following the exercise. Participants will complete all pre-exercise tests (DOMS, CMJ, MVIC). The exercise consists of running on a treadmill situated at a -10% grade at 9 km/hr (5.59 mph) for 20 minutes. This is proceeded and followed by 5 minute warm-up/cool-down periods. Those that are allocated to the "control" group, will not receive treatment after the downhill running protocol. | |
| Pneumatic compression | Experimental | The participants will be asked to refrain from exercise 24 hours prior to and following the exercise. Participants will complete all pre-exercise tests (DOMS, CMJ, MVIC). The exercise consists of running on a treadmill situated at a -10% grade at 9 km/hr (5.59 mph) for 20 minutes. This is proceeded and followed by 5 minute warm-up/cool-down periods. Those allocated to the "pneumatic compression" group will receive 20 minutes of pneumatic compression at 100 mmHg. |
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| Blood flow restriction | Experimental | The participants will be asked to refrain from exercise 24 hours prior to and following the exercise. Participants will complete all pre-exercise tests (DOMS, CMJ, MVIC). The exercise consists of running on a treadmill situated at a -10% grade at 9 km/hr (5.59 mph) for 20 minutes. This is proceeded and followed by 5 minute warm-up/cool-down periods. Those allocated to the "BFR" group will receive 4 rounds of treatment: 3 minutes will be spent at 100% of resting limb occlusion pressure, followed by 2 minutes of 0% occlusion. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Pneumatic Compression | Device | Following downhill running protocol, participants will complete 20 minutes of pneumatic compression at 100 mmHg. |
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| Measure | Description | Time Frame |
|---|---|---|
| Counter Movement Jump Height | Participants will be asked to complete three consecutive counter movement jumps with hands on hips. The CMJ will be used as an indirect measure of muscle function. | Immediately before and immediately after exercise, immediately after treatment, 24-hours post treatment. |
| Maximal Voluntary Isometric Contraction | Participants will be asked to complete an MVIC to assess muscle function. | Immediately before and immediately after exercise, immediately after treatment, 24-hours post treatment. |
| Sedentary delayed onset muscle soreness | Using a visual analog scale, participants will be asked to rate their level of soreness while at rest. | Immediately before and immediately after exercise, immediately after treatment, 24-hours post treatment. |
| Active delayed onset muscle soreness | Using a visual analog scale, participants will be asked to rate their level of soreness while completing a wall sit. | Using a visual analog scale, participants will be asked to rate their level of soreness while at rest. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Bailey McLagan, MS | Contact | 323-442-2498 | mclagan@usc.edu |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Southern California | Recruiting | Los Angeles | California | 90033 | United States |
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| ID | Term |
|---|---|
| D048228 | Intermittent Pneumatic Compression Devices |
| D000090003 | Blood Flow Restriction Therapy |
| ID | Term |
|---|---|
| D004864 | Equipment and Supplies |
| D005081 | Exercise Therapy |
| D012046 | Rehabilitation |
| D000359 | Aftercare |
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| Blood Flow Restriction | Device | Following the downhill running protocol, participants will complete 4 rounds of treatment: 3 minutes at 100% resting limb occlusion pressure, 2 minutes of 0% resting limb occlusion pressure. |
|
| D003266 |
| Continuity of Patient Care |
| D005791 | Patient Care |
| D013812 | Therapeutics |
| D026741 | Physical Therapy Modalities |