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Dehydration is a common phenomenon in judo that can lead to negative performance such as a decline in strength, a decline in anaerobic performance, a reduced body fluid balance, glycogen depletion and worsened psychological parameters. Therefore, we want to simulate several judo combats and look at the performances whether they change during a competition day. We also want to see if the results are different in a dehydrated versus euhydrated state.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| dehydrated | Experimental | The participants will be dehydrated (at least 2% of their body weight) before performing the Sterkowicz test. |
|
| euhydrated | No Intervention | The participants will be normally hydrated (= euhydration) before performing the Sterkowicz test (i.e. no specific intervention will be implemented). |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Dehydration | Other | Participants will be dehydrated (2% of their body weight) using sauna. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Sterkowicz test | Sterkowicz test | Up to 3 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| heart rate | Heart rate will be determined using the Polar H1 (Polar, Kempele, Finland) | Up to 3 weeks |
| Body weight | Body weight will be assessed to the nearest 0.002 kg using the WLT 60/120/X/L3 scale (All Scales Europe, Veen, The Netherlands) |
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Inclusion Criteria:
Exclusion Criteria:
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| ID | Term |
|---|---|
| D003681 | Dehydration |
| ID | Term |
|---|---|
| D014883 | Water-Electrolyte Imbalance |
| D008659 | Metabolic Diseases |
| D009750 | Nutritional and Metabolic Diseases |
| D010335 | Pathologic Processes |
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| Up to 3 weeks |
| Borg Rating of Perceived Exertion Scale | The Borg Rating of Perceived Exertion scale is a numerical scale (to determine exertion) that ranges from 6 to 20, where 6 means "no exertion at all" and 20 means "maximal exertion. | Up to 3 weeks |
| body temperature | Body temperature will be determined using the Adtemp 421 Digital Ear Thermometer (American Diagnostics Corporations, Hauppauge, New York, United States of America) | Up to 3 weeks |
| D013568 | Pathological Conditions, Signs and Symptoms |