An exploratory study of short-term camping in Antarctica: Hormonal and mood states changes
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...
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ftmasarykunivojs:oai:ojs.journals.muni.cz:article/20748 2023-05-15T13:46:41+02:00 An exploratory study of short-term camping in Antarctica: Hormonal and mood states changes Martins, Ygor Antônio Tinoco Moraes, Michele Macedo Mendes, Thiago Teixeira Maluf, Chams Bicalho Ladeira, Roberto Vagner Puglia Wanner, Samuel Penna Soares, Danusa Dias Arantes, Rosa Maria Esteves 2022-02-19 application/pdf https://journals.muni.cz/CPR/article/view/20748 eng eng Masaryk Univerzity https://journals.muni.cz/CPR/article/view/20748/16660 https://journals.muni.cz/CPR/article/view/20748 Copyright (c) 2022 Czech Polar Reports Czech Polar Reports; Vol 11 No 2 (2021); 352-373 Czech Polar Reports; Vol. 11 No. 2 (2021); 352-373 1805-0697 1805-0689 confinement isolation expedition neuroendocrine polar stress info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2022 ftmasarykunivojs 2022-09-05T23:19:16Z 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 increased as well (26.2 ± 12.5 vs 67.8 ± 45.8, all differences 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. Article in Journal/Newspaper Antarc* Antarctic Antarctica Brazilian Antarctic Program Masaryk University Journals Antarctic |
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Open Polar |
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Masaryk University Journals |
op_collection_id |
ftmasarykunivojs |
language |
English |
topic |
confinement isolation expedition neuroendocrine polar stress |
spellingShingle |
confinement isolation expedition neuroendocrine polar stress Martins, Ygor Antônio Tinoco Moraes, Michele Macedo Mendes, Thiago Teixeira Maluf, Chams Bicalho Ladeira, Roberto Vagner Puglia Wanner, Samuel Penna Soares, Danusa Dias Arantes, Rosa Maria Esteves An exploratory study of short-term camping in Antarctica: Hormonal and mood states changes |
topic_facet |
confinement isolation expedition neuroendocrine polar stress |
description |
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 increased as well (26.2 ± 12.5 vs 67.8 ± 45.8, all differences 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. |
format |
Article in Journal/Newspaper |
author |
Martins, Ygor Antônio Tinoco Moraes, Michele Macedo Mendes, Thiago Teixeira Maluf, Chams Bicalho Ladeira, Roberto Vagner Puglia Wanner, Samuel Penna Soares, Danusa Dias Arantes, Rosa Maria Esteves |
author_facet |
Martins, Ygor Antônio Tinoco Moraes, Michele Macedo Mendes, Thiago Teixeira Maluf, Chams Bicalho Ladeira, Roberto Vagner Puglia Wanner, Samuel Penna Soares, Danusa Dias Arantes, Rosa Maria Esteves |
author_sort |
Martins, Ygor Antônio Tinoco |
title |
An exploratory study of short-term camping in Antarctica: Hormonal and mood states changes |
title_short |
An exploratory study of short-term camping in Antarctica: Hormonal and mood states changes |
title_full |
An exploratory study of short-term camping in Antarctica: Hormonal and mood states changes |
title_fullStr |
An exploratory study of short-term camping in Antarctica: Hormonal and mood states changes |
title_full_unstemmed |
An exploratory study of short-term camping in Antarctica: Hormonal and mood states changes |
title_sort |
exploratory study of short-term camping in antarctica: hormonal and mood states changes |
publisher |
Masaryk Univerzity |
publishDate |
2022 |
url |
https://journals.muni.cz/CPR/article/view/20748 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica Brazilian Antarctic Program |
genre_facet |
Antarc* Antarctic Antarctica Brazilian Antarctic Program |
op_source |
Czech Polar Reports; Vol 11 No 2 (2021); 352-373 Czech Polar Reports; Vol. 11 No. 2 (2021); 352-373 1805-0697 1805-0689 |
op_relation |
https://journals.muni.cz/CPR/article/view/20748/16660 https://journals.muni.cz/CPR/article/view/20748 |
op_rights |
Copyright (c) 2022 Czech Polar Reports |
_version_ |
1766245091701161984 |