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Time-course for onset and decay of physiological adaptations in endurance trained athletes undertaking prolonged heat acclimation training. 耐力训练运动员接受长时间热适应训练后生理适应的开始和衰减时间过程。
Temperature Pub Date : 2024-08-01 eCollection Date: 2024-01-01 DOI: 10.1080/23328940.2024.2383505
Claes Cubel, Mads Fischer, Daniel Stampe, Magnus B Klaris, Tim R Bruun, Carsten Lundby, Nikolai B Nordsborg, Lars Nybo
{"title":"Time-course for onset and decay of physiological adaptations in endurance trained athletes undertaking prolonged heat acclimation training.","authors":"Claes Cubel, Mads Fischer, Daniel Stampe, Magnus B Klaris, Tim R Bruun, Carsten Lundby, Nikolai B Nordsborg, Lars Nybo","doi":"10.1080/23328940.2024.2383505","DOIUrl":"10.1080/23328940.2024.2383505","url":null,"abstract":"<p><p>Short-term heat acclimation (HA) appears adequate for maximizing sudomotor adaptations and enhancing thermal resilience in trained athletes. However, for enhanced erythropoiesis and transfer effects to exercise capacity in cooler environments, prolonged HA appears necessary. To establish the time-course for physiological adaptations and performance effects, 20 male elite cyclists were divided into an intervention group (HEAT; <i>n</i> = 10) completing 5 weeks of HA (six one-hour HA-training sessions per week) and control (<i>n</i> = 10) tested pre and post in hot (40°C) and cool conditions (20°C). HEAT completed tests at 40°C every week during HA with measures of sweat rate and [Na<sup>+</sup>] and a decay test 2 weeks after termination of HA. HEAT improved time for exhaustion by 15 min (<i>p</i> < 0.001) in the 40°C test, increased sweat rate by 0.44 L/hour (<i>p</i> < 0.001), and lowered sweat sodium concentration [Na<sup>+</sup>] by 14.1 mmol/L (<i>p</i> = 0.006) from pre- to post-HA, with performance returning to pre-HA levels in the 2-week decay test. Total hemoglobin mass (tHb<sub>mass</sub>) was increased by 30 grams (+3%, <i>p</i> = 0.048) after 3 weeks and 40 grams (+4%, <i>p</i> = 0.038) after 5 weeks in HEAT but returned to pre-HA levels at the 2-week decay test. HEAT improved incremental peak power output (+12 W, <i>p</i> = 0.001) without significant changes in maximal oxygen uptake (<i>p</i> = 0.094). In conclusion, improvements in heat exercise tolerance and sudomotor adaptations materialized during the first ~3 weeks and the entire 5 weeks of HA augmented both cool exercise capacity and tHb<sub>mass</sub>. However, the 2-week post-HA evaluation demonstrated a rapid decay of physiological adaptations and exercise capacity in the heat.</p>","PeriodicalId":36837,"journal":{"name":"Temperature","volume":"11 4","pages":"350-362"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11583594/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142711112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Differential patterns of sweat and blood lactate concentration response during incremental exercise in varied ambient temperatures: A pilot study. 在不同环境温度下进行增量运动时，汗液和血液乳酸浓度反应的不同模式：试点研究。
Temperature Pub Date : 2024-07-30 eCollection Date: 2024-01-01 DOI: 10.1080/23328940.2024.2375693
Naoya Takei, Takeru Inaba, Yuki Morita, Katsuyuki Kakinoki, Hideo Hatta, Yu Kitaoka
{"title":"Differential patterns of sweat and blood lactate concentration response during incremental exercise in varied ambient temperatures: A pilot study.","authors":"Naoya Takei, Takeru Inaba, Yuki Morita, Katsuyuki Kakinoki, Hideo Hatta, Yu Kitaoka","doi":"10.1080/23328940.2024.2375693","DOIUrl":"10.1080/23328940.2024.2375693","url":null,"abstract":"<p><p>Blood lactate concentration during exercise is a reliable indicator of energy metabolism and endurance performance. Lactate is also present in sweat, and sweating plays an important role in thermoregulation, especially in hot conditions. Recently, wearable sensors have enabled the real-time and noninvasive measurement of sweat lactate concentration, potentially serving as an alternative indicator of blood lactate response. However, the evidence regarding the relationship between sweat and blood lactate responses during incremental exercise in hot conditions is lacking. In a randomized cross-over design, six highly trained male runners completed two incremental treadmill tests under normal (20°C/50%RH) or hot (30°C/50%RH) conditions. The tests include 3-min running stages and 1-min recovery, starting at 12 km/h and increasing by 1 km/h at each stage. Blood and sweat lactate concentrations were measured at each stage to determine blood and sweat lactate thresholds (LT). Blood lactate concentrations were higher under hot conditions (<i>p</i> < 0.01), but there was no difference in the response pattern or velocity at blood LT between conditions. Significant early increase (<i>p</i> < 0.01) in sweat lactate and low velocity at sweat LT (<i>p</i> < 0.05) were observed under hot conditions. A significant correlation between blood and sweat lactate concentrations was found under normal conditions (<i>p</i> < 0.001) but not under hot conditions, and no significant correlations were observed between the velocity at blood and sweat LT. In conclusion, sweat lactate concentration does not consistently reflect blood lactate concentration during incremental exercise.</p>","PeriodicalId":36837,"journal":{"name":"Temperature","volume":"11 3","pages":"247-253"},"PeriodicalIF":0.0,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11346536/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142082067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Greater severity of depressive symptoms is associated with changes to perceived sweating, preferred ambient temperature and warmth-seeking behavior. 抑郁症状的严重程度与出汗感知、偏好的环境温度和寻求温暖行为的变化有关。
Temperature Pub Date : 2024-07-12 DOI: 10.1080/23328940.2024.2374097
Mark P. Tyler, Bradley J. Wright, Charles L. Raison, Christopher A. Lowry, L. Evans, Matthew W. Hale
{"title":"Greater severity of depressive symptoms is associated with changes to perceived sweating, preferred ambient temperature and warmth-seeking behavior.","authors":"Mark P. Tyler, Bradley J. Wright, Charles L. Raison, Christopher A. Lowry, L. Evans, Matthew W. Hale","doi":"10.1080/23328940.2024.2374097","DOIUrl":"https://doi.org/10.1080/23328940.2024.2374097","url":null,"abstract":"","PeriodicalId":36837,"journal":{"name":"Temperature","volume":"47 26","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141654836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
About the cover. 关于封面
Temperature Pub Date : 2024-06-04 eCollection Date: 2024-01-01 DOI: 10.1080/23328940.2024.2357873
{"title":"About the cover.","authors":"","doi":"10.1080/23328940.2024.2357873","DOIUrl":"https://doi.org/10.1080/23328940.2024.2357873","url":null,"abstract":"","PeriodicalId":36837,"journal":{"name":"Temperature","volume":"11 2","pages":"W1"},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11152091/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141284981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Indoor overheating: A review of vulnerabilities, causes, and strategies to prevent adverse human health outcomes during extreme heat events 室内过热：回顾极端高温事件期间的脆弱性、原因和预防不利人类健康后果的战略
Temperature Pub Date : 2024-06-04 DOI: 10.1080/23328940.2024.2361223
Glen P. Kenny, Emily J. Tetzlaff, W. Journeay, Sarah B. Henderson, Fergus K O'Connor
{"title":"Indoor overheating: A review of vulnerabilities, causes, and strategies to prevent adverse human health outcomes during extreme heat events","authors":"Glen P. Kenny, Emily J. Tetzlaff, W. Journeay, Sarah B. Henderson, Fergus K O'Connor","doi":"10.1080/23328940.2024.2361223","DOIUrl":"https://doi.org/10.1080/23328940.2024.2361223","url":null,"abstract":"","PeriodicalId":36837,"journal":{"name":"Temperature","volume":"1 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141268088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermal and cardiovascular heat adaptations in active adolescents following summer 夏季过后，好动青少年的热量和心血管热量适应情况
Temperature Pub Date : 2024-05-05 DOI: 10.1080/23328940.2024.2347161
Harry A. Brown, T. Topham, Brad Clark, Andrew P Woodward, Leonidas G. Ioannou, A. Flouris, Richard D. Telford, James W. Smallcombe, Ollie Jay, Julien D. Périard
{"title":"Thermal and cardiovascular heat adaptations in active adolescents following summer","authors":"Harry A. Brown, T. Topham, Brad Clark, Andrew P Woodward, Leonidas G. Ioannou, A. Flouris, Richard D. Telford, James W. Smallcombe, Ollie Jay, Julien D. Périard","doi":"10.1080/23328940.2024.2347161","DOIUrl":"https://doi.org/10.1080/23328940.2024.2347161","url":null,"abstract":"","PeriodicalId":36837,"journal":{"name":"Temperature","volume":"312 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141012275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Alpha-2-adrenergic agonists reduce resting energy expenditure in humans during external cooling α-2-肾上腺素能激动剂能减少人体在外部降温时的静息能量消耗
Temperature Pub Date : 2024-04-21 DOI: 10.1080/23328940.2024.2339781
Clifton W. Callaway, Katharyn L Flickinger, Alexandra Weissman, Francis X. Guyette, Ryann DeMaio, Andrea Jonsson, Victor Wu, Jenna L. Monteleone, Peter Prescott, Jonathan Birabaharan, Daniel J. Buysse, P. Empey, Thomas D. Nolin, Raymond E. West
{"title":"Alpha-2-adrenergic agonists reduce resting energy expenditure in humans during external cooling","authors":"Clifton W. Callaway, Katharyn L Flickinger, Alexandra Weissman, Francis X. Guyette, Ryann DeMaio, Andrea Jonsson, Victor Wu, Jenna L. Monteleone, Peter Prescott, Jonathan Birabaharan, Daniel J. Buysse, P. Empey, Thomas D. Nolin, Raymond E. West","doi":"10.1080/23328940.2024.2339781","DOIUrl":"https://doi.org/10.1080/23328940.2024.2339781","url":null,"abstract":"","PeriodicalId":36837,"journal":{"name":"Temperature","volume":"118 38","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140678089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hypothalamic control of torpor and hibernation 下丘脑对休眠和冬眠的控制
Temperature Pub Date : 2024-04-19 DOI: 10.1080/23328940.2024.2339794
H. Yamaguchi
{"title":"Hypothalamic control of torpor and hibernation","authors":"H. Yamaguchi","doi":"10.1080/23328940.2024.2339794","DOIUrl":"https://doi.org/10.1080/23328940.2024.2339794","url":null,"abstract":"","PeriodicalId":36837,"journal":{"name":"Temperature","volume":" 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140685491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A most peculiar parasol: Exploring thermoregulation through human hair curl. 一把最奇特的阳伞：通过人的卷发探索体温调节。
Temperature Pub Date : 2024-04-02 eCollection Date: 2024-01-01 DOI: 10.1080/23328940.2023.2279032
Tina Lasisi
{"title":"A most peculiar parasol: Exploring thermoregulation through human hair curl.","authors":"Tina Lasisi","doi":"10.1080/23328940.2023.2279032","DOIUrl":"https://doi.org/10.1080/23328940.2023.2279032","url":null,"abstract":"","PeriodicalId":36837,"journal":{"name":"Temperature","volume":"11 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10989693/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140855427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
About the cover. 关于封面
Temperature Pub Date : 2024-04-02 eCollection Date: 2024-01-01 DOI: 10.1080/23328940.2024.2329151
{"title":"About the cover.","authors":"","doi":"10.1080/23328940.2024.2329151","DOIUrl":"https://doi.org/10.1080/23328940.2024.2329151","url":null,"abstract":"","PeriodicalId":36837,"journal":{"name":"Temperature","volume":"11 1","pages":"iii"},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10989692/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140868426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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