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Exercise-Induced Hypoalgesia (EIH) is a lessening of pain sensitivity in response to an acute bout of exercise. Limited research has examined the effects of expectations on EIH during a dynamic resistance training during different intensities. Therefore, the purpose of this study is to examine the effects of positive and negative expectations on EIH.
Individuals who meet the eligibility criteria and consent to participate will attend one testing session that is approximately one hour. Baseline Pressure Pain Threshold will be measured followed by random assignment to one of four study arms.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| High Intensity Exercise | Experimental | Participants will complete an upper body resistance exercise until they report a high fatigue level. |
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| Low Intensity Exercise | Experimental | Participants will complete an upper body resistance exercise until they report a low fatigue level. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Positive Expectations Instructional Set | Other | Participants randomly assigned to this instructional set will be told, "You will be completing an intervention known to be effective for some people with shoulder pain. We expect this will make you less sensitive to the pressure applied to your shoulder and thigh and you will require more pressure than what was previously necessary to experience pain." |
| Measure | Description | Time Frame |
|---|---|---|
| Pressure Pain Threshold | Pressure Pain Threshold will be applied with a digital algometer before and after the exercise intervention. | Change from baseline immediately after exercise |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Central Florida | Orlando | Florida | 32765 | United States |
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| Negative Expectations Instructional Set | Other | Participants randomly assigned to this instructional set will be told, "You will be completing an intervention which is not effective for some people with shoulder pain. We expect this will make you more sensitive to the pressure applied to your shoulder and thigh and you will require less pressure than what was previously necessary to experience pain." |
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