Exercise Does Not Prevent Thermoregulatory Adaptation to Cold Stress During the Winter Season
PURPOSE Despite the growing need for recreation and work in cold environments, which often involve high levels of physical activity and significant body heat loss, studies investigating the impact of exercise during repeated cold exposure on cold adaptation are lacking. Therefore, this study aimed t...
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| Format: | Article |
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The Korean Society of Exercise Physiology
2024-11-01
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| Series: | 운동과학 |
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| Online Access: | http://ksep-es.org/upload/pdf/ksep-2024-00458.pdf |
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| author | Dae-Hwan Kim Min-Hyeok Jang Jean-Hee Han Jung-Hyun Kim |
| author_facet | Dae-Hwan Kim Min-Hyeok Jang Jean-Hee Han Jung-Hyun Kim |
| author_sort | Dae-Hwan Kim |
| collection | DOAJ |
| description | PURPOSE Despite the growing need for recreation and work in cold environments, which often involve high levels of physical activity and significant body heat loss, studies investigating the impact of exercise during repeated cold exposure on cold adaptation are lacking. Therefore, this study aimed to examine whether exercise during repeated cold exposure during winter influences thermoregulatory adaptation to cold. METHODS Forty young male participants were recruited and classified into two groups: cold weather athletes (CA) who spent at least 10 hr per week training outdoors, and non-athletes (CON) who did not regularly exercise outdoors but were naturally exposed to cold during the winter season. Physiological and perceptual thermoregulatory responses were assessed before and after winter. RESULTS After winter (December-February), both groups exhibited cold habituation features (p<.05; higher body temperature, blunted sympathetic response, and attenuated cold sensitivity), except for cold pain in the CA group. The cold-induced vasodilation (CIVD) response was enhanced in both groups (F=6.864, p=.034), as indicated by the higher temperature parameters of the fingers (Tmax, Tmean, and Tmin). However, the enhanced temperature response did not translate into improved manual dexterity following cold-water immersion (F=0.041, p=.841). CONCLUSIONS Exercise during repeated cold exposure did not prevent overall thermoregulatory adaptation after winter. However, the CA group exhibited an attenuated habituation to cold pain, suggesting a potential area for future research on the effects of exercise on cold adaptation. Although the CIVD response improved, it did not result in better fine manual dexterity after cold immersion. These findings highlight the need for further studies of the biological advantages of CIVD. |
| format | Article |
| id | doaj-art-25d88c125bbf4075be4b97b7c6b31d7c |
| institution | Kabale University |
| issn | 1226-1726 2384-0544 |
| language | Korean |
| publishDate | 2024-11-01 |
| publisher | The Korean Society of Exercise Physiology |
| record_format | Article |
| series | 운동과학 |
| spelling | doaj-art-25d88c125bbf4075be4b97b7c6b31d7c2025-08-20T03:53:46ZkorThe Korean Society of Exercise Physiology운동과학1226-17262384-05442024-11-0133446847610.15857/ksep.2024.004581120Exercise Does Not Prevent Thermoregulatory Adaptation to Cold Stress During the Winter SeasonDae-Hwan Kim0Min-Hyeok Jang1Jean-Hee Han2Jung-Hyun Kim3Department of Physical Education, Graduate School, Kyung Hee University, Yongin, KoreaDepartment of Physical Education, Graduate School, Kyung Hee University, Yongin, KoreaDepartment of Physical Education, Graduate School, Kyung Hee University, Yongin, KoreaDepartment of Physical Education, Graduate School, Kyung Hee University, Yongin, KoreaPURPOSE Despite the growing need for recreation and work in cold environments, which often involve high levels of physical activity and significant body heat loss, studies investigating the impact of exercise during repeated cold exposure on cold adaptation are lacking. Therefore, this study aimed to examine whether exercise during repeated cold exposure during winter influences thermoregulatory adaptation to cold. METHODS Forty young male participants were recruited and classified into two groups: cold weather athletes (CA) who spent at least 10 hr per week training outdoors, and non-athletes (CON) who did not regularly exercise outdoors but were naturally exposed to cold during the winter season. Physiological and perceptual thermoregulatory responses were assessed before and after winter. RESULTS After winter (December-February), both groups exhibited cold habituation features (p<.05; higher body temperature, blunted sympathetic response, and attenuated cold sensitivity), except for cold pain in the CA group. The cold-induced vasodilation (CIVD) response was enhanced in both groups (F=6.864, p=.034), as indicated by the higher temperature parameters of the fingers (Tmax, Tmean, and Tmin). However, the enhanced temperature response did not translate into improved manual dexterity following cold-water immersion (F=0.041, p=.841). CONCLUSIONS Exercise during repeated cold exposure did not prevent overall thermoregulatory adaptation after winter. However, the CA group exhibited an attenuated habituation to cold pain, suggesting a potential area for future research on the effects of exercise on cold adaptation. Although the CIVD response improved, it did not result in better fine manual dexterity after cold immersion. These findings highlight the need for further studies of the biological advantages of CIVD.http://ksep-es.org/upload/pdf/ksep-2024-00458.pdfcold acclimatizationcold habituationcold-induced vasodilationcutaneous thermal sensitivitythermoregulation |
| spellingShingle | Dae-Hwan Kim Min-Hyeok Jang Jean-Hee Han Jung-Hyun Kim Exercise Does Not Prevent Thermoregulatory Adaptation to Cold Stress During the Winter Season 운동과학 cold acclimatization cold habituation cold-induced vasodilation cutaneous thermal sensitivity thermoregulation |
| title | Exercise Does Not Prevent Thermoregulatory Adaptation to Cold Stress During the Winter Season |
| title_full | Exercise Does Not Prevent Thermoregulatory Adaptation to Cold Stress During the Winter Season |
| title_fullStr | Exercise Does Not Prevent Thermoregulatory Adaptation to Cold Stress During the Winter Season |
| title_full_unstemmed | Exercise Does Not Prevent Thermoregulatory Adaptation to Cold Stress During the Winter Season |
| title_short | Exercise Does Not Prevent Thermoregulatory Adaptation to Cold Stress During the Winter Season |
| title_sort | exercise does not prevent thermoregulatory adaptation to cold stress during the winter season |
| topic | cold acclimatization cold habituation cold-induced vasodilation cutaneous thermal sensitivity thermoregulation |
| url | http://ksep-es.org/upload/pdf/ksep-2024-00458.pdf |
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