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http://hdl.handle.net/1843/53508| Type: | Artigo de Periódico |
| Title: | An exploratory study of short-term camping in antarctica: hormonal and mood states changes |
| Authors: | Ygor Antônio Tinoco Martins Michele Macedo Moraes Thiago Teixeira Mendes Samuel Penna Wanner Chams Bicalho Maluf Roberto Vagner Puglia Ladeira Danusa Dias Soares Rosa Maria Esteves Arantes |
| Abstract: | Long-term Antarctic expedition’s studies indicated harmful or positive behavioral and psychophysiological adaptive changes that arise from adversities in isolated, confined, and extreme environments. Whereas most of the published studies focused on overwintering situations, most Brazilian Antarctic Program summer expeditions consist of short-term stays. We evaluated the influence of a permanence in Antarctic short-term (13-day) summer camp on the hormonal responses and mood states in eight volunteers. Data collection was carried out at the beginning (initial measure, days 3 to 5) and the end (final measurement, days 10 to 12) of the camping. Morning and evening samples of saliva were obtained to measure the testosterone and cortisol concentrations. Morning blood drops were used to determine thyroid-stimulating hormone (TSH) and thyroxine (T4) concentration. The volunteers also answered a mood states questionnaire. During the short-term camp, T4 (3.92 ± 0.75 vs 2.21 ± 0.71 µg.dL-1) and T4/TSH (3.16 ± 0.97 vs 1.79 ± 0.74 AU) reduced, without concomitant changes in TSH (1.28 ± 0.17 vs 1.30 ± 0.09 µU.mL-1), and salivary cortisol increased (2,392 ± 1,153 vs 4,440 ± 1,941 pg.mL-1) resulting in greater cortisol amplitude (calculated from the difference between morning and evening measurement, 1,400 ± 1,442 vs 3,230 ± 2,046). In men, testosterone in creased as well (26.2 ± 12.5 vs 67.8 ± 45.8, alldifferences with P<0.05). There was a moderate effect in mood states evidenced by increased anger and fatigue, and reduced vigor. At the end of the camp, the change in cortisol correlated with anger, and the final cortisol values with anger and tension. We concluded that staying in a short-term summer camp in Antarctica induced endocrine and mood state changes, indicators of stress reaction. |
| Subject: | Confinamento Controlado Neuroendocrinologia Stress Expedições |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | MED - DEPARTAMENTO DE PROPEDÊUTICA COMPLEMENTAR |
| Rights: | Acesso Aberto |
| metadata.dc.identifier.doi: | 10.5817/CPR2021-2-24 |
| URI: | http://hdl.handle.net/1843/53508 |
| Issue Date: | 2021 |
| metadata.dc.url.externa: | https://journals.muni.cz/CPR/article/view/20748 |
| metadata.dc.relation.ispartof: | Czech Polar Reports |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| An exploratory study of short-term camping in Antarctica Hormonal and mood states changes.pdf | 1.72 MB | Adobe PDF | View/Open |
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