Journal of thermal biology最新文献

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Spawning is accompanied by increased thermal performance in blue mussels 蓝贻贝的产卵伴随着热性能的提高。
IF 2.9 2区 生物学
Journal of thermal biology Pub Date : 2025-01-01 DOI: 10.1016/j.jtherbio.2024.104018
Katharina Alter , Maria Constenla , Francesc Padrós , Inna M. Sokolova , Ana Born-Torrijos
{"title":"Spawning is accompanied by increased thermal performance in blue mussels","authors":"Katharina Alter ,&nbsp;Maria Constenla ,&nbsp;Francesc Padrós ,&nbsp;Inna M. Sokolova ,&nbsp;Ana Born-Torrijos","doi":"10.1016/j.jtherbio.2024.104018","DOIUrl":"10.1016/j.jtherbio.2024.104018","url":null,"abstract":"<div><div>Climate change is causing extreme short-term warming with greater intensity and more frequent occurrence. Reproduction and subsequent recruitment of coastal ecosystem engineers, such as the blue mussel, may be impacted by the extreme temperatures because these vital functions are sensitive to the timing of short-term changes in abiotic factors. We exposed intertidal blue mussels, <em>Mytilus edulis,</em> to a thermal challenge from 10 to 29 °C using an ecologically relevant heating rate of 4 °C/h. We assessed their reproductive status by observing spawning activity and by analyzing histological sections of their gonad tissue. In addition, we monitored their heart rates and valve gaping behavior to determine their thermal performance. We identified three spawning groups: non-spawners that had mature gonads but did not release gametes, post-spawners that released mature gametes prior to the thermal challenge, and active spawners that released mature gametes during the thermal challenge. Across temperatures, active spawners had significantly higher heart rates and their heart rate peaked at the temperatures 3.9 and 3.2 °C higher compared to those of non-spawners or post-spawners, respectively. Post-spawners had significantly narrower valve gapes across temperatures compared to both other spawning groups. Hence, the metabolic response to warming strongly depends on the reproductive status, with active spawners experiencing increased thermal stress due to heightened metabolism, non-spawners showing heat-induced metabolic depression, and post-spawners adopting an energy-conserving strategy indicated by reduced gaping. Considered together, spawning during recurring short-term warming events may elevate mortality risk with potential consequences for the local biodiversity in a future climate.</div></div>","PeriodicalId":17428,"journal":{"name":"Journal of thermal biology","volume":"127 ","pages":"Article 104018"},"PeriodicalIF":2.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142872250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hot air injures human alveolar epithelial cells through ERK1/2 signaling-mediated ferroptosis
IF 2.9 2区 生物学
Journal of thermal biology Pub Date : 2025-01-01 DOI: 10.1016/j.jtherbio.2025.104065
Ruihan Liu, Zhihui Wang, Qing Luo, Guanbin Song
{"title":"Hot air injures human alveolar epithelial cells through ERK1/2 signaling-mediated ferroptosis","authors":"Ruihan Liu,&nbsp;Zhihui Wang,&nbsp;Qing Luo,&nbsp;Guanbin Song","doi":"10.1016/j.jtherbio.2025.104065","DOIUrl":"10.1016/j.jtherbio.2025.104065","url":null,"abstract":"<div><div>Inhalation lung injury is an acute pulmonary impairment resulting from inhalation of hot air and/or toxic gases. However, the molecular mechanisms involved in hot air-induced heat stress (HS) response of alveolar epithelial cells are not fully understood. In this study, employing a cell heat loading device, we found that HS at 50 °C resulted in significant ferroptosis and injury of human alveolar epithelial cells (BEAS-2B cells), supported by increased lipid peroxidation, reactive oxygen species (ROS), and decreased ferritin heavy chain 1 (FTH1), glutathione peroxidase 4 (GPX4), solute carrier family 7 member 11 (SLC7A11). Ferrostatin-1 (Fer-1), a targeted inhibitor of ferroptosis, could suppress HS-induced ferroptosis and injury of BEAS-2B cells. Moreover, HS activated extracellular signal-regulated kinase 1/2 (ERK1/2) in BEAS-2B cells. Nevertheless, blockage of ERK1/2 activation by U0126, an inhibitor of ERK1/2 phosphorylation, repressed HS-induced ferroptosis and injury of BEAS-2B cells. Taken together, this study demonstrates that HS injures alveolar epithelial cells through ERK1/2 signaling-mediated ferroptosis, which provides a novel potential strategy for the treatment of HS-induced inhalation lung injury.</div></div>","PeriodicalId":17428,"journal":{"name":"Journal of thermal biology","volume":"127 ","pages":"Article 104065"},"PeriodicalIF":2.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143080617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of heat stress on growth performance, physiological responses, and carcass traits in broilers 热应激对肉鸡生长性能、生理反应和胴体性状的影响。
IF 2.9 2区 生物学
Journal of thermal biology Pub Date : 2025-01-01 DOI: 10.1016/j.jtherbio.2024.103994
Hye Ran Kim , Pilnam Seong , Kuk-Hwan Seol , Jong-Eun Park , Hana Kim , Woncheoul Park , Jin Ho Cho , Sung Dae Lee
{"title":"Effects of heat stress on growth performance, physiological responses, and carcass traits in broilers","authors":"Hye Ran Kim ,&nbsp;Pilnam Seong ,&nbsp;Kuk-Hwan Seol ,&nbsp;Jong-Eun Park ,&nbsp;Hana Kim ,&nbsp;Woncheoul Park ,&nbsp;Jin Ho Cho ,&nbsp;Sung Dae Lee","doi":"10.1016/j.jtherbio.2024.103994","DOIUrl":"10.1016/j.jtherbio.2024.103994","url":null,"abstract":"<div><div>High environmental temperatures lead to metabolic changes, body weight reduction, and high mortality in chickens, affecting poultry production worldwide. This study aimed to evaluate the effects of heat stress, assessed by the temperature–humidity index (THI), on the growth performance, physiological response, carcasses, and hematological traits of broilers. A total of 200 broilers (between 17 and 31 days old) were kept in thermoneutral conditions (21 °C; 60% relative humidity, RH) for 3 days during the adaptation period, followed by 14 days of exposure to the experimental treatments. The broilers were randomly assigned to 4 groups of equal size and raised in a temperature–humidity controlled chamber with THI ranging from 67 (21 °C; RH 60%) to 84 (33 °C; RH 60%). In boilers subjected to severe heat stress (THI 84), feed intake (−30%) and body weight gain (−51%) were decreased (P &lt; 0.05) in comparison with the performance parameters of broilers under thermoneutral conditions (THI 67). Moreover, under heat stress, the respiration rate and rectal temperature significantly increased (P &lt; 0.05), whereas blood parameters showed reduced levels of red blood cells, hemoglobin, white blood cells, lymphocytes, and electrolytes (K+, Na+). Regarding carcass traits, differences were observed in broilers exposed to severe heat stress, particularly in the reduction of the bursa of Fabricius as an immune organ growth index (P &lt; 0.05). This study shows that severe heat stress, as revealed by the high THI levels, alters the physiological reactions and metabolic processes of broiler chickens, leading to negative effects on their growth.</div></div>","PeriodicalId":17428,"journal":{"name":"Journal of thermal biology","volume":"127 ","pages":"Article 103994"},"PeriodicalIF":2.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142894914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Increased age and reduced physical activity level worsen thermoregulatory pacing behaviour in men during walking exercise in the heat 年龄的增加和运动量的减少会使男性在高温下进行步行运动时的体温调节起搏行为恶化。
IF 2.9 2区 生物学
Journal of thermal biology Pub Date : 2025-01-01 DOI: 10.1016/j.jtherbio.2024.104019
Alison Millyard , Henry B. Ogden , Sally P. Waterworth , David B. Pyne , Joseph D. Layden , Saul R. Bloxham
{"title":"Increased age and reduced physical activity level worsen thermoregulatory pacing behaviour in men during walking exercise in the heat","authors":"Alison Millyard ,&nbsp;Henry B. Ogden ,&nbsp;Sally P. Waterworth ,&nbsp;David B. Pyne ,&nbsp;Joseph D. Layden ,&nbsp;Saul R. Bloxham","doi":"10.1016/j.jtherbio.2024.104019","DOIUrl":"10.1016/j.jtherbio.2024.104019","url":null,"abstract":"<div><div>Older adults are vulnerable to heat-related morbidity and mortality due to reduced thermoregulatory function associated with aging. The aim of this study was to examine the relationship between age and thermoregulatory behaviour during walking exercise in Control (22 °C; 40% relative humidity [RH]) and Hot (35 °C, 40% RH) conditions. Thirty-six healthy males (age 46 ± 20 (range 19–86) years; stature 177 ± 7 cm; body mass 75.7 ± 11.3 kg; BMI 24.2 ± 2.9 kg m<sup>−2</sup>; Ʃskinfolds 33.3 ± 10.5 mm; mean ± SD) each completed two experimental trials, one in Control and one in Hot conditions. Each trial consisted of three bouts of 10 min walking at a rating of perceived exertion (RPE) of 13, interspersed with 5 min of seated rest. Thermoregulatory behaviour was assessed as the ratio between distance walked in the Control and Hot trials. Participants walked 3.8% less in the Hot (2.63 ± 0.46 km) than in the Control (2.73 ± 0.4 km) condition (t(36) = −2.38, p = 0.023, d = 0.26). Regression analysis demonstrated that age was the primary predictor of thermoregulatory pacing behaviour, explaining 23% of the variance (Std β = −0.475, p = 0.003). Including physical activity levels (PASE) increased the variance accounted to 32% (age Std β = −0.396, p = 0.011; PASE Std β = 0.319, p = 0.038). In conclusion, thermoregulatory pacing behaviour was impaired with increased age and reduced physical activity when undertaking walking exercise at a perceived exertion of ‘somewhat hard’ in hot ambient conditions.</div></div>","PeriodicalId":17428,"journal":{"name":"Journal of thermal biology","volume":"127 ","pages":"Article 104019"},"PeriodicalIF":2.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142907232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Relationship between body temperature measured by infrared thermography and performance, feed efficiency and enteric gas emission of hair lambs
IF 2.9 2区 生物学
Journal of thermal biology Pub Date : 2025-01-01 DOI: 10.1016/j.jtherbio.2025.104070
Charleni Crisóstomo , Rafael F. Bernardi , Danielle N. Gurgeira , Robson M.F. Silveira , Rogério R. Vicentini , Simón P. Márquez , Adibe L. Abdalla , Claudia C. Paro de Paz , Josiel Ferreira , Ricardo L. Dias da Costa
{"title":"Relationship between body temperature measured by infrared thermography and performance, feed efficiency and enteric gas emission of hair lambs","authors":"Charleni Crisóstomo ,&nbsp;Rafael F. Bernardi ,&nbsp;Danielle N. Gurgeira ,&nbsp;Robson M.F. Silveira ,&nbsp;Rogério R. Vicentini ,&nbsp;Simón P. Márquez ,&nbsp;Adibe L. Abdalla ,&nbsp;Claudia C. Paro de Paz ,&nbsp;Josiel Ferreira ,&nbsp;Ricardo L. Dias da Costa","doi":"10.1016/j.jtherbio.2025.104070","DOIUrl":"10.1016/j.jtherbio.2025.104070","url":null,"abstract":"<div><div>Infrared thermography (IRT) is a noninvasive method that is one of the main indirect tools to optimize livestock measurements, as most changes in physiological conditions affect body temperature. This study aimed to evaluate the use of IRT to estimate residual feed intake (RFI) and residual intake and gain (RIG) of hair lambs, in addition to variations in performance, feed efficiency estimates, and gas emissions. Forty lambs were monitored during two feed efficiency tests to assess performance, feed efficiency estimates, and enteric gas emissions. These metrics were associated with IRT measurements from different body regions (eyes, hooves, rumen, and left flank). Temperatures were measured using infrared images collected with a Fluke camera, employing the non-steady-state rapid detection measurement method. Lambs were grouped into high (RFI-; RIG+), medium (RFI±; RIG±), and low (RFI+; RIG-) classes based on ± 0.5 standard deviations of adjusted RFI and RIG. To assess group differences, Tukey's test (P &lt; 0.05) was applied, along with Pearson correlation and multivariate analyses to determine relationships between variables. In the 2nd test, differences in RIG classification were observed for eye and left flank temperatures. Some performance variables and feed efficiency estimates, such as dry matter intake, feed efficiency, and feed conversion, differed by RFI and RIG classifications. In the 1st test, only N<sub>2</sub>O and NH<sub>4</sub> emissions differed between RFI classifications, while in the 2nd test, CO<sub>2</sub> emissions were higher in RFI + animals. Performance and feed efficiency estimates were the primary variables, whereas temperatures measured by IRT had the lowest discriminatory power for RFI and RIG categories, followed by enteric gas emissions. Limitations related to animal numbers and environmental temperature variation in this study suggest that further investigation of the relationship between infrared thermography and animal performance efficiency is warranted.</div></div>","PeriodicalId":17428,"journal":{"name":"Journal of thermal biology","volume":"127 ","pages":"Article 104070"},"PeriodicalIF":2.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143372276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transcriptional dynamics of porcine granulosa cells during cellular acclimation to thermal challenge
IF 2.9 2区 生物学
Journal of thermal biology Pub Date : 2025-01-01 DOI: 10.1016/j.jtherbio.2025.104064
Jaya Bharati , Satish Kumar , Salam Jayachitra Devi , N.H. Mohan , Vivek Kumar Gupta
{"title":"Transcriptional dynamics of porcine granulosa cells during cellular acclimation to thermal challenge","authors":"Jaya Bharati ,&nbsp;Satish Kumar ,&nbsp;Salam Jayachitra Devi ,&nbsp;N.H. Mohan ,&nbsp;Vivek Kumar Gupta","doi":"10.1016/j.jtherbio.2025.104064","DOIUrl":"10.1016/j.jtherbio.2025.104064","url":null,"abstract":"<div><div>Investigations on heat stress induced transcriptomic changes is critical to characterization of candidate genes for thermal adaptability in livestock. Continues spells of high ambient temperature due to climate change has amplified reproductive dysfunctions, necessitating immediate attention. The present study aimed to explore the transcriptomic signature of heat stressed granulosa cells (GCs) and signalling pathways regulating their adaptability to thermal challenge. The GCs were collected from small follicles (3–6 mm) of pig ovary. The GCs primary culture was subjected to in vitro heat stress challenge at 42 <sup>O</sup>C for 6 h. RNA sequencing was conducted for heat stress (treated) and non-heat stress (control) groups using Illumina NextSeq2000 sequencing platform. The significant DEGs were selected using NOISeq R package with cut-offs, probability value ≥ 0.95 and log<sub>2</sub> fold change ≥1. Bioinformatics analysis was conducted for exploring gene ontology enrichment, functional pathways, hub genes in protein-protein interaction network and functional clusters regulating cellular homeostasis and survivability during heat stress challenge. The analysis pipeline yielded a total of 12156 protein coding transcripts, which were expressed during heat stress challenge in GCs, out of which 4904 were differentially (prob. ≥ 0.95) expressed; 2936 were upregulated and 1968 were downregulated. The large number of DEGs and gene ontologies in the study specifies the concerted mechanisms involving multiple signalling pathways like MAPK, HIPPO, WNT, PI3-AKT, NFKB, NOTCH and many more operating in the cell to maintain cellular homeostasis. Thermal stress induced differentially expressed hub genes <em>HSP90, HSPA8, HSPA5, TGFB1</em> and <em>PPARG</em> are key elements in stress, regulating multiple pathways and expression of transcription factors. The TNF signalling pathway, phosphatidyl inositol signalling system and <em>DERL3</em> gene network linked ubiquitin-dependent endoplasmic reticulum associated protein degradation pathway, which regulates cell viability, proliferation, apoptosis and estrogen synthesis, can be regarded as novel regulators involved in stress adaptation in pigs.</div></div>","PeriodicalId":17428,"journal":{"name":"Journal of thermal biology","volume":"127 ","pages":"Article 104064"},"PeriodicalIF":2.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143372378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development and validation of modified predicted heat strain model for various metabolic rates in hot-humid underground environments
IF 2.9 2区 生物学
Journal of thermal biology Pub Date : 2025-01-01 DOI: 10.1016/j.jtherbio.2025.104066
Xingming Wang , Yijiang Wang , Ziyuan Wang , Xiaojuan Lai , Chunli Sang
{"title":"Development and validation of modified predicted heat strain model for various metabolic rates in hot-humid underground environments","authors":"Xingming Wang ,&nbsp;Yijiang Wang ,&nbsp;Ziyuan Wang ,&nbsp;Xiaojuan Lai ,&nbsp;Chunli Sang","doi":"10.1016/j.jtherbio.2025.104066","DOIUrl":"10.1016/j.jtherbio.2025.104066","url":null,"abstract":"<div><div>As the hot and humid environments in deep underground spaces deteriorate with increasing mining depth, there is an increased demand to accurately assess worker heat stress levels in underground environments characterized by high relative humidity and air velocity. A modified predicted heat strain (mPHS) model was proposed through the correction factors of air velocity and relative humidity for the clothing thermal insulation and vapor resistance. The predictive performances of the mPHS model for mean skin temperature, sweat loss, and core temperature were validated in low, moderate, and high metabolic rates. The model's guidances for deep underground environments were discussed, and the maximum allowable exposure times (MAET) for 168 conditions were provided. The results demonstrated that the mPHS model exhibited superior predictive performance within 60–320 W/m<sup>2</sup> when compared with the original model, especially for mean skin temperature and core temperature, with a maximum reduction in the predictive difference of 1.60 °C and 0.61 °C. The acceptability of the predicted mean skin temperature elevated from 33.65% to 91.35% and 41.7% to 100% in the conditions of 60–120 W/m<sup>2</sup> and 140–200 W/m<sup>2</sup>, respectively. In the hot environments, the influence of air velocity (0.3–0.8 m/s) on MAET was more pronounced than that of relative humidity (50%–80%). An increase in air velocity of 0.1 m/s, coupled with a 5% decrease in relative humidity, leads to an approximate extension of the MAET by 18 min. The results could contribute a theoretical insight for predicting thermal physiology in hot-humid underground environments.</div></div>","PeriodicalId":17428,"journal":{"name":"Journal of thermal biology","volume":"127 ","pages":"Article 104066"},"PeriodicalIF":2.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Critical reproductive behaviors in Scaled Quail and Northern Bobwhite are affected by thermal variability and mean temperature 鳞鹑和山齿鹑的关键生殖行为受温度变化和平均温度的影响。
IF 2.9 2区 生物学
Journal of thermal biology Pub Date : 2025-01-01 DOI: 10.1016/j.jtherbio.2025.104054
William Kirkpatrick , Erin Sauer , Rachel Carroll , Jeremy Cohen , Craig Davis , Samuel Fuhlendorf , Sarah DuRant
{"title":"Critical reproductive behaviors in Scaled Quail and Northern Bobwhite are affected by thermal variability and mean temperature","authors":"William Kirkpatrick ,&nbsp;Erin Sauer ,&nbsp;Rachel Carroll ,&nbsp;Jeremy Cohen ,&nbsp;Craig Davis ,&nbsp;Samuel Fuhlendorf ,&nbsp;Sarah DuRant","doi":"10.1016/j.jtherbio.2025.104054","DOIUrl":"10.1016/j.jtherbio.2025.104054","url":null,"abstract":"<div><div>Animals can respond differently to shifting thermal variability versus thermal averages, both of which are changing due to climate warming. How these thermal variables affect parental care behaviors can reveal the ability of parents to modify their behaviors to meet the competing demands of their offspring's thermal needs and self-maintenance, which becomes critical in suboptimal thermal conditions. Further, the time frame used to examine the interplay between temperature and behavioral shifts (e.g., seasonal patterns in care vs. drivers of individual care decisions) can provide different information about the plasticity of parental care behavior. We investigated the relationship between thermal means, thermal variability, and incubation behaviors across multiple timescales in Scaled Quail and Northern Bobwhite. Both species decreased off-bout length during periods of high thermal variability, a novel finding among studies of avian parental behavior. Further relationships between thermal endpoints (mean vs. variation) and behavior differed depending on the temporal scale. For instance, total daily time spent off the nest was not influenced by daily average temperature, yet individual off-bout duration increased with increasing average temperature in the 2 h prior to the off-bout. These results provide evidence that thermal-behavioral relationships differ across scales and likely represent a bird's ability to modify their incubation strategy to rapidly respond to the immediate thermal environment (altering individual off-bout length based on temperature) to meet self-maintenance needs while resulting in a similar outcome for their nest (total daily off-bout time). However, longer off-bout durations during high temperature events can come with reproductive costs, sometimes resulting in acute offspring mortality when eggs or chicks experience lethal temperatures.</div></div>","PeriodicalId":17428,"journal":{"name":"Journal of thermal biology","volume":"127 ","pages":"Article 104054"},"PeriodicalIF":2.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143007611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of body position on skin temperature, heart rate, and blood pressure in active men 体位对运动男性皮肤温度、心率和血压的影响。
IF 2.9 2区 生物学
Journal of thermal biology Pub Date : 2025-01-01 DOI: 10.1016/j.jtherbio.2024.104009
Victor Hugo Pereira Franco , Aldo A. Vasquez-Bonilla , Manuel Sillero-Quintana
{"title":"Influence of body position on skin temperature, heart rate, and blood pressure in active men","authors":"Victor Hugo Pereira Franco ,&nbsp;Aldo A. Vasquez-Bonilla ,&nbsp;Manuel Sillero-Quintana","doi":"10.1016/j.jtherbio.2024.104009","DOIUrl":"10.1016/j.jtherbio.2024.104009","url":null,"abstract":"<div><div>The use of thermography to measure skin temperature (Tsk) is typically assessed in a standing position; however, the differences of Tsk in different body positions have not been adequately studied. This study aimed to analyze the influence of body position (sitting, standing, and supine) on Tsk. Twenty-nine trained men (age 23.52 ± 0.34 years) spent 10 minutes in each of the three positions in random order. During these postures, the heart rate (HR) response and systolic and diastolic blood pressure were measured as influential cardiovascular variables. Tsk was measured in the trapezius, shoulder, chest, biceps, costal, elbow, abdomen, and forearm. Covariance analysis (ANCOVA), intraclass correlation (ICC), typical error, and effect size (ES) were applied. When comparing the three positions, greater variations in Tsk were observed in the shoulder (0.74–1.31 %), biceps (−0.36 - 1.33 %), elbow (0.46–1.20%) and forearm (0.58–1.41%). HR varied significantly between the different positions (p &lt; 0.05), influencing Tsk in the chest (ES = 0.71), the biceps (ES = 0.56) and abdominal regions (ES = 0.91) in the sitting position compared to the supine position, and in the abdominal region (ES = 1.12) in the standing position compared to the supine position. The reliability of the measurement was excellent in the chest (ICC = 0.91), costal (ICC = 0.91), and abdominal (ICC = 0.89) regions. Although many studies traditionally measure Tsk in a standing position, the results of this study support that the Tsk distribution varies with body position, and this factor should be considered in any study using thermography.</div></div>","PeriodicalId":17428,"journal":{"name":"Journal of thermal biology","volume":"127 ","pages":"Article 104009"},"PeriodicalIF":2.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142822298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research directions in thermoregulation during exercise in extreme environments 极端环境下运动体温调节研究方向。
IF 2.9 2区 生物学
Journal of thermal biology Pub Date : 2025-01-01 DOI: 10.1016/j.jtherbio.2024.104031
J.I. Priego-Quesada , M. Gil-Calvo , T. Mundel , T. Hartmann , F.E. Marino
{"title":"Research directions in thermoregulation during exercise in extreme environments","authors":"J.I. Priego-Quesada ,&nbsp;M. Gil-Calvo ,&nbsp;T. Mundel ,&nbsp;T. Hartmann ,&nbsp;F.E. Marino","doi":"10.1016/j.jtherbio.2024.104031","DOIUrl":"10.1016/j.jtherbio.2024.104031","url":null,"abstract":"","PeriodicalId":17428,"journal":{"name":"Journal of thermal biology","volume":"127 ","pages":"Article 104031"},"PeriodicalIF":2.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142872245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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