Impacto de uma ultramaratona de 50 km na percepção da qualidade de vida, no estado de estresse e recuperação e nos níveis de cortisol e iga salivares

Abstract

An ultramarathon is a run with more mileage than a marathon, meaning any run over 42,195 meters. They can be determined by distance (50, 100 to 5,000 km) or duration (from 6 hours to multiple stages). This racing modality can be played on asphalt, trail, mountain, track or in a combination of these terrains, and also in extreme environments such as desert and snow. The number of races with these characteristics and also the number of people who finish them have increased in recent years, becoming an object of interest and study by many researchers around the world. The objective was to observe salivary cortisol and IgA levels and WHOQOLbref and RESTQ-sport responses before and after a 50 km run competition, and to verify whether there is a correlation between biomarker levels and psychometrics instrument responses. Fifteen male amateur athletes participated (age 37.3 ± 5.3 years, body mass 73.2 ± 8.9 kg). and answered WHOQOL-bref and RESTQ-sport questionnaires three days before the event and three days after. A saliva sample was collected 30 minutes before the race and 30 minutes after the race. The results showed a significant difference in the of cortisol levels (0.82 ± 0.84 µg/dL) and IgA (-2.03 ± 2.69 mg/dL). Questionnaire responses showed no significant difference. We concluded that there was a significant increase in salivary cortisol levels and a decrease in salivary IgA 30 minutes after the race. Also, athletes who train regularly (average of 65km/week) for a 50 km race feel recovered within three days after submitting to the race, according to the questionnaires applied.