Sweat
Conditions
Keywords
Cyclist, Performance, Temperature, Humidity
Brief summary
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.
Detailed description
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.
Interventions
OTHERLow intensity
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.
OTHERLow temperature
The performance test will be carried out in a room conditioned to a temperature of 22º.
OTHERLow Humidity
The performance test will be carried out in a room conditioned to 40% humidity.
OTHERHigh intensity
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.
OTHERHigh temperature
The performance test will be carried out in a room conditioned to a temperature of 35º.
OTHERHigh humidity
The performance test will be carried out in a room conditioned to 65% humidity.
Sponsors
Universidad Católica San Antonio de Murcia
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
SINGLE (Investigator)
Eligibility
Sex/Gender
MALE
Age
18 Years to 45 Years
Healthy volunteers
Yes
Inclusion criteria
* Male cyclists with more than two years of cycling experience. * Perform tests without fatigue. * Road bike training at least twice a week.
Exclusion criteria
* Participants with chronic illness. * Have a long-term injury that prevents you from training in the previous month. * Inability to understand informed consent. * Use of diuretics in the month prior to or during the measurement period.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Sweat | Change of baseline rate of sweet rate in six occasions (the first day, day 7, day, 14, day 21, day 28, day 35) | The amount of sweat will be measured by a sensor placed on the back. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Heart Rate | Changes of heart rate in six occasions (the first day, day 7, day, 14, day 21, day 28, day 35) | The heart rate will be evaluated by means of a heart rate strap. |
| Fatigue | Change of fatigue in six occasions (the first day, day 7, day, 14, day 21, day 28, day 35) | Rate of perceived exertion using Borg scale. En esta escala 0 representa nada fatigado y el 10 esfuerzo máximo. |
| Temperature on the forehead | Changes in Temperature on the forehead in six occasions (the first day, day 7, day, 14, day 21, day 28, day 35) | The temperature will be measured by an infrared thermometer. |
| Microcapillary Blood | Change of baseline rate of sweet rate in six occasions (the first day, day 7, day, 14, day 21, day 28, day 35) | 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. |
| Sleep efficiency | Changes in the sleep efficiency in six occasions (the first day, day 7, day, 14, day 21, day 28, day 35) | Measured by accelerometry, with Actigraph wGT3X-BT |
| Karolinska drowsiness scale | It will be measured the day after in six occasions (the first day, day 7, day, 14, day 21, day 28, day 35) | Measured by Karolinska test |
| Temperature in the ear | Changes in Temperature in the ear in six occasions (the first day, day 7, day, 14, day 21, day 28, day 35) | The temperature will be measured by ear thermometer. |
Countries
Spain
Outcome results
None listed