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Controlled, double-blind, crossover clinical trial with six parallel arms depending on the combination of temperature and humidity (22º and 40% humidity, 35º 40% humidity and 35º and 65% humidity), with two differents intensity, to investigate and validate the physiological use of a sensor in recreational road cyclists.
Subjects who meet the inclusion criteria will be recruited to participate in the clinical trial and perform the exercise sessions.
The cyclists in the study will have to make 7 visits to the laboratory. At the first visit, their aerobic performance will be evaluated by an incremental test to exhaustion with gas analysis. And in the next 6 visits they will have to perform a sustained intensity exercise with different environmental conditions according to the combination of temperature, humidity and intensity.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 22 degrees, 40% humidity and 50% intensity | Experimental | The room in which the 30-minute test will be performed will be at 22 degrees Celsius and 40% humidity. The subject should perform the test at 50% of the power at which he reached his VO2max. |
|
| 35 degrees, 40% humidity and 50% intensity | Experimental | The room in which the 30-minute test will be performed will be at 35 degrees Celsius and 40% humidity. The subject should perform the test at 50% of the power at which he reached his VO2max. |
|
| 35 degrees, 65% humidity and 50% intensity | Experimental | The room in which the 30-minute test will be performed will be at 35 degrees Celsius and 65% humidity. The subject should perform the test at 50% of the power at which he reached his VO2max. |
|
| 22 degrees, 40% humidity and 60% intensity | Experimental | The room in which the 30-minute test will be performed will be at 22 degrees Celsius and 40% humidity. The subject should perform the test at 60% of the power at which he reached his VO2max. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Low intensity | Other | The subject will perform the 30-minute test at an intensity of 50% of the power at which he/she has reached his/her VO2max. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Sweat | The amount of sweat will be measured by a sensor placed on the back. | Change of baseline rate of sweet rate in six occasions (the first day, day 7, day, 14, day 21, day 28, day 35) |
| Measure | Description | Time Frame |
|---|---|---|
| Microcapillary Blood | By means of a lancet puncture in the thumb of the finger, 70 ml of capillary blood will be extracted.This test provides biochemical variables (ABL90FLEX) with 70 ml of capillary blood. | Change of baseline rate of sweet rate in six occasions (the first day, day 7, day, 14, day 21, day 28, day 35) |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Catholic University of Murcia | Murcia | 30107 | Spain |
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| ID | Term |
|---|---|
| D000069453 | Ultrasonic Waves |
| D003080 | Cold Temperature |
| C505729 | SLH1 protein, Arabidopsis |
| D003972 | Diathermy |
| ID | Term |
|---|---|
| D013016 | Sound |
| D011840 | Radiation, Nonionizing |
| D011827 | Radiation |
| D055585 | Physical Phenomena |
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| 35 degrees, 40% humidity and 60% intensity | Experimental | The room in which the 30-minute test will be performed will be at 35 degrees Celsius and 40% humidity. The subject should perform the test at 60% of the power at which he reached his VO2max. |
|
| 35 degrees, 65% humidity and 60% intensity | Experimental | The room in which the 30-minute test will be performed will be at 35 degrees Celsius and 65% humidity. The subject should perform the test at 60% of the power at which he reached his VO2max. |
|
| Low temperature | Other | The performance test will be carried out in a room conditioned to a temperature of 22º. |
|
| Low Humidity | Other | The performance test will be carried out in a room conditioned to 40% humidity. |
|
| High intensity | Other | The subject will perform the 30-minute test at an intensity of 60% of the power at which he/she has reached his/her VO2max. |
|
| High temperature | Other | The performance test will be carried out in a room conditioned to a temperature of 35º. |
|
| High humidity | Other | The performance test will be carried out in a room conditioned to 65% humidity. |
|
| Heart Rate |
The heart rate will be evaluated by means of a heart rate strap. |
| Changes of heart rate in six occasions (the first day, day 7, day, 14, day 21, day 28, day 35) |
| Fatigue | Rate of perceived exertion using Borg scale. En esta escala 0 representa nada fatigado y el 10 esfuerzo máximo. | Change of fatigue in six occasions (the first day, day 7, day, 14, day 21, day 28, day 35) |
| Temperature on the forehead | The temperature will be measured by an infrared thermometer. | Changes in Temperature on the forehead in six occasions (the first day, day 7, day, 14, day 21, day 28, day 35) |
| Temperature in the ear | The temperature will be measured by ear thermometer. | Changes in Temperature in the ear in six occasions (the first day, day 7, day, 14, day 21, day 28, day 35) |
| Sleep efficiency | Measured by accelerometry, with Actigraph wGT3X-BT | Changes in the sleep efficiency in six occasions (the first day, day 7, day, 14, day 21, day 28, day 35) |
| Karolinska drowsiness scale | Measured by Karolinska test | It will be measured the day after in six occasions (the first day, day 7, day, 14, day 21, day 28, day 35) |
| D013696 |
| Temperature |
| D013816 | Thermodynamics |
| D014887 | Weather |
| D001272 | Atmosphere |
| D004777 | Environment |
| D055669 | Ecological and Environmental Phenomena |
| D001686 | Biological Phenomena |
| D008685 | Meteorological Concepts |
| D004778 | Environment and Public Health |
| D006979 | Hyperthermia, Induced |
| D013812 | Therapeutics |