Physiological and physical performance changes during a 20-day winter military training course and its subsequent 10-day recovery period
ABSTRACTThe present study investigated physiological, mental and physical performance changes during a 20-day winter military training course and the following 10-day recovery period. Fifty-eight (age 19 ± 1 years, height 182 ± 6 cm, body mass 78.5 ± 7.2 kg) male soldiers volunteered. Body compositi...
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Taylor & Francis Group
2023
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ftdoajarticles:oai:doaj.org/article:f89d722b47454e56b4f4ae7240633730 2024-01-21T10:04:00+01:00 Physiological and physical performance changes during a 20-day winter military training course and its subsequent 10-day recovery period Tommi Ojanen Kai Pihlainen Jani P. Vaara Heikki Kyröläinen 2023-12-01T00:00:00Z https://doi.org/10.1080/22423982.2023.2207287 https://doaj.org/article/f89d722b47454e56b4f4ae7240633730 EN eng Taylor & Francis Group https://www.tandfonline.com/doi/10.1080/22423982.2023.2207287 https://doaj.org/toc/2242-3982 doi:10.1080/22423982.2023.2207287 2242-3982 https://doaj.org/article/f89d722b47454e56b4f4ae7240633730 International Journal of Circumpolar Health, Vol 82, Iss 1 (2023) Cold weather training military human performance endocrinology recovery Arctic medicine. Tropical medicine RC955-962 article 2023 ftdoajarticles https://doi.org/10.1080/22423982.2023.2207287 2023-12-24T01:42:47Z ABSTRACTThe present study investigated physiological, mental and physical performance changes during a 20-day winter military training course and the following 10-day recovery period. Fifty-eight (age 19 ± 1 years, height 182 ± 6 cm, body mass 78.5 ± 7.2 kg) male soldiers volunteered. Body composition, serum biomarker levels and performance tests were measured four times during the study. In addition, questionnaires were collected daily for subjective stress and rate of perceived exertion. The course induced significant declines in body (−3.9%, p < 0.05) and fat mass (−31.6%, p < 0.05) as well as in all assessed physical performance variables (−9.2 - −20.2%, p < 0.05), testosterone (−73.7%, p < 0.001) and IGF-1 concentrations (−43.6%, p < 0.001). At the same time, the sex hormone-binding globulin, creatine kinase, and C-reactive protein values increased significantly (46.3–1952.7%, p < 0.05). After the 10-day recovery period, the body composition and hormonal values returned to the baseline (p < 0.05), as did some physical performance variables, such as 2 min sit-ups and the evacuation test (p < 0.05). However, explosive force production in the upper and lower bodies remained unrecovered. The 20-day winter military training caused significant physiological and mental stress, as well as a drastic decline in physical performance even for highly physically fit soldiers, and the 10-day recovery period did not establish full recovery. Article in Journal/Newspaper Arctic Circumpolar Health International Journal of Circumpolar Health Directory of Open Access Journals: DOAJ Articles Arctic International Journal of Circumpolar Health 82 1 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Cold weather training military human performance endocrinology recovery Arctic medicine. Tropical medicine RC955-962 |
spellingShingle |
Cold weather training military human performance endocrinology recovery Arctic medicine. Tropical medicine RC955-962 Tommi Ojanen Kai Pihlainen Jani P. Vaara Heikki Kyröläinen Physiological and physical performance changes during a 20-day winter military training course and its subsequent 10-day recovery period |
topic_facet |
Cold weather training military human performance endocrinology recovery Arctic medicine. Tropical medicine RC955-962 |
description |
ABSTRACTThe present study investigated physiological, mental and physical performance changes during a 20-day winter military training course and the following 10-day recovery period. Fifty-eight (age 19 ± 1 years, height 182 ± 6 cm, body mass 78.5 ± 7.2 kg) male soldiers volunteered. Body composition, serum biomarker levels and performance tests were measured four times during the study. In addition, questionnaires were collected daily for subjective stress and rate of perceived exertion. The course induced significant declines in body (−3.9%, p < 0.05) and fat mass (−31.6%, p < 0.05) as well as in all assessed physical performance variables (−9.2 - −20.2%, p < 0.05), testosterone (−73.7%, p < 0.001) and IGF-1 concentrations (−43.6%, p < 0.001). At the same time, the sex hormone-binding globulin, creatine kinase, and C-reactive protein values increased significantly (46.3–1952.7%, p < 0.05). After the 10-day recovery period, the body composition and hormonal values returned to the baseline (p < 0.05), as did some physical performance variables, such as 2 min sit-ups and the evacuation test (p < 0.05). However, explosive force production in the upper and lower bodies remained unrecovered. The 20-day winter military training caused significant physiological and mental stress, as well as a drastic decline in physical performance even for highly physically fit soldiers, and the 10-day recovery period did not establish full recovery. |
format |
Article in Journal/Newspaper |
author |
Tommi Ojanen Kai Pihlainen Jani P. Vaara Heikki Kyröläinen |
author_facet |
Tommi Ojanen Kai Pihlainen Jani P. Vaara Heikki Kyröläinen |
author_sort |
Tommi Ojanen |
title |
Physiological and physical performance changes during a 20-day winter military training course and its subsequent 10-day recovery period |
title_short |
Physiological and physical performance changes during a 20-day winter military training course and its subsequent 10-day recovery period |
title_full |
Physiological and physical performance changes during a 20-day winter military training course and its subsequent 10-day recovery period |
title_fullStr |
Physiological and physical performance changes during a 20-day winter military training course and its subsequent 10-day recovery period |
title_full_unstemmed |
Physiological and physical performance changes during a 20-day winter military training course and its subsequent 10-day recovery period |
title_sort |
physiological and physical performance changes during a 20-day winter military training course and its subsequent 10-day recovery period |
publisher |
Taylor & Francis Group |
publishDate |
2023 |
url |
https://doi.org/10.1080/22423982.2023.2207287 https://doaj.org/article/f89d722b47454e56b4f4ae7240633730 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Circumpolar Health International Journal of Circumpolar Health |
genre_facet |
Arctic Circumpolar Health International Journal of Circumpolar Health |
op_source |
International Journal of Circumpolar Health, Vol 82, Iss 1 (2023) |
op_relation |
https://www.tandfonline.com/doi/10.1080/22423982.2023.2207287 https://doaj.org/toc/2242-3982 doi:10.1080/22423982.2023.2207287 2242-3982 https://doaj.org/article/f89d722b47454e56b4f4ae7240633730 |
op_doi |
https://doi.org/10.1080/22423982.2023.2207287 |
container_title |
International Journal of Circumpolar Health |
container_volume |
82 |
container_issue |
1 |
_version_ |
1788694428729212928 |