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Niu Z, Goto T. Effects of individual characteristics and local body functions on sweating response: A review. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2024:10.1007/s00484-024-02758-7. [PMID: 39141136 DOI: 10.1007/s00484-024-02758-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/29/2024] [Accepted: 08/07/2024] [Indexed: 08/15/2024]
Abstract
In this study, we conducted a literature review to deepen our understanding of the sweating response of the thermoregulatory system, focusing on the influence of individual characteristics and local body functions. Among the factors related to individual characteristics, improvement in aerobic fitness had a positive effect on the sweating response, whereas aging exerted an inhibitory effect. Short-term artificial acclimation and seasonal heat acclimatization promoted sweating, whereas long-term geographical acclimatization suppressed sweating. Male exhibited higher sweat rates than female when the metabolic heat production was high. Individuals with smaller surface area-to-mass ratios tended to have higher sweat rates than those with larger ratios. Regarding local body functions, sweat distribution in the resting state showed high regional sweat rates in the lower limbs and torso, with higher values in the lower limbs when in the supine position and higher values in the torso when in the seated position. During exercise, the regional sweat rates was high in the torso, whereas the limbs exhibited relatively low sweat rates. These differences in sweat distribution stem from the thermoregulatory potential of each body region, which aims to efficiently regulate body temperature. Local effects have only been examined in the thigh and forearm, with temperature coefficient Q10 ranging from 2 to 5. Only the forehead showed significantly high thermosensitivity among all body regions.
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Affiliation(s)
- Zhuoxi Niu
- Department of Architecture and Building Science, Tohoku University, Sendai, Japan.
| | - Tomonobu Goto
- Department of Architecture and Building Science, Tohoku University, Sendai, Japan
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Chang Y, Wang X. Sweat and odor in sportswear - A review. iScience 2023; 26:107067. [PMID: 37534139 PMCID: PMC10391722 DOI: 10.1016/j.isci.2023.107067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023] Open
Abstract
Sportswear worn next to the skin is easily soaked by sweat and may become a breeding ground for the microbiome, thus a source of malodor. Malodor can cause social embarrassment and discomfort to both wearer and others. Given the risks current deodorant products pose to nature and human life, the development of sustainable textiles for odor control comes to the forefront. This review introduces the odor-generating mechanism in clothing from the perspectives of perspiration composition and cutaneous microbiome. With the knowledge of the significant role of sweat in odor formation, the sweat distribution of the human body, measurement techniques, and advanced technologies developed for quick-dry function are presented in the second part. Lastly, odor management in sportswear is evaluated, covering the odor-assessing techniques, the effects of various textile materials, and emerging solutions in terms of antibacterial treatment, adsorbent materials, and photocatalytic degradations of odorous compounds. Overall, it is of both personal and social value to develop novel textile materials with odor-control functions by making use of natural materials and fabric designs.
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Affiliation(s)
- Yuping Chang
- JC STEM Lab of Sustainable Fibers and Textiles, School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Xungai Wang
- JC STEM Lab of Sustainable Fibers and Textiles, School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
- Research Institute for Sports Science and Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
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Kwon RW, Park JS, Lee HG, Park JI, Choo EA, Lee SJ, Lee JB. Coffee intake may promote sudomotor function activation via the contribution of caffeine. Front Nutr 2022; 9:1051828. [PMID: 36570158 PMCID: PMC9774485 DOI: 10.3389/fnut.2022.1051828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 11/21/2022] [Indexed: 12/13/2022] Open
Abstract
Objectives To determine whether drinking coffee with caffeine accelerates the sympathetic response to acetylcholine (ACh). Methods Tests were performed twice at 1-week intervals following the intake of coffee. Subjects were randomly divided into two groups: Group A was administered 16 fluid oz of water (CON), while Group B was given 16 fluid oz of coffee (Coffee). After 1 week, Group A was administered 16 fluid oz of coffee (Coffee), while Group B was given 16 fluid oz of water (CON). The quantitative sudomotor axon reflex test (QSART) was performed after intake of coffee and water and a 40 min break. QSART with iontophoresis and 10% ACh was performed to determine axon reflex (AXR) mediated with and without iontophoresis [AXR (1) and AXR (2), respectively], and directly activated sweating (DIR). Results The sweat onset time of the AXR was shorter in the Coffee compared with the CON (p < 0.05). The sweat rates in AXR (1) AXR (2) and DIR were significantly higher in the Coffee than in the CON (p < 0.05, p < 0.05, p < 0.01, respectively). In addition, the Coffee showed significantly higher density of activated sweat glands and activated sweat gland output than the CON (p < 0.05, p < 0.01, respectively). The overall results of this study showed that coffee intake could stimulate higher activation in both AXR and DIR sweat responses. Conclusion Coffee intake can improve sweating sensitivity in both the AXR and DIR by the contribution of caffeine contained in coffee. This suggests that other compounds in coffee may not inhibit the sympathetic response to ACh. Therefore, coffee may be clinically worth considering as a supplement for the activation of the cholinergic and sudomotor function.
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Affiliation(s)
- Ryeo-Won Kwon
- Department of Physiology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea,Department of Medical Sciences, Soonchunhyang University, Asan, Republic of Korea
| | - Jin-Sun Park
- Department of Physiology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - Ha-Gyoung Lee
- Department of Physiology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - Jong-In Park
- Department of Physiology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - Eon-Ah Choo
- Department of Physiology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - Seung-Jea Lee
- Department of Medical Sciences, Soonchunhyang University, Asan, Republic of Korea
| | - Jeong-Beom Lee
- Department of Physiology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea,Department of Medical Sciences, Soonchunhyang University, Asan, Republic of Korea,*Correspondence: Jeong-Beom Lee,
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Lee SJ, Kim TW, Park TH, Lee IH, Jang EC, Kwon SC, Lee HJ, Choi JH, Lee JB. Thermotherapy as an alternative to exercise for metabolic health in obese postmenopausal women: focus on circulating irisin level. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2022; 26:501-509. [PMID: 36302624 PMCID: PMC9614401 DOI: 10.4196/kjpp.2022.26.6.501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 09/08/2022] [Accepted: 10/05/2022] [Indexed: 01/24/2023]
Abstract
Irisin is a myokine caused by exercise that improves insulin resistance and weight loss. However, under unfavorable conditions such as air pollution, and during the pandemic, outdoor activities are uncomfortable. Therefore, in this study, the effect of heat therapy (half bath 42 ± 0.5°C for 30 min) on irisin circulation levels as an exercise alternative for middle-aged obese women after menopause was investigated. Subjects were 33 women aged 49.54 ± 6.04 years, with parameters of height, 160.12 ± 4.33 cm, weight, 69.71 ± 7.52 kg, body surface area 1.73 ± 0.13 m2, body mass index, 27.19 ± 3.40 kg/m2. The results suggest that circulating irisin levels showed a significant increase after one-time thermotherapy (TH-1). However, the increase in circulating irisin levels after 15 treatments (TH-15, 5 days/week, 3 weeks) was significantly varied. The level of adiponectin, which increases fatty oxidation to reduce fatty deposition, increased significantly at TH-1, but further increased at TH-15, which was significantly different from the level of TH-1. In addition, the basic serum free fatty acid (FFA) level was significantly increased at TH-15 compared to TH-1. Significant differences were also found in the lipid profile (body mass index, waist circumference, and % body fat). Thermotherapy can significantly increase the tympanic temperature and induce changes in circulating irisin and adiponectin levels. Thus, it resulted in positive changes in FFA and lipid profiles. Therefore, repeated thermotherapy is effective in increasing circulating irisin levels in postmenopausal obese women.
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Affiliation(s)
- Seung-Jea Lee
- Department of Physiology, College of Medicine, Soonchunhyang University, Cheonan 31151, Korea,Department of Medical Sciences, Soonchunhyang University, Asan 31238, Korea
| | - Tae-Wook Kim
- Department of Physiology, College of Medicine, Soonchunhyang University, Cheonan 31151, Korea
| | - Tae-Hwan Park
- Department of Physiology, College of Medicine, Soonchunhyang University, Cheonan 31151, Korea
| | - In-Ho Lee
- Department of Occupational and Environmental Medicine, Soonchunhyang University Cheonan Hospital, Cheonan 31151, Korea
| | - Eun-Chul Jang
- Department of Occupational and Environmental Medicine, Soonchunhyang University Cheonan Hospital, Cheonan 31151, Korea
| | - Soon-Chan Kwon
- Department of Occupational and Environmental Medicine, Soonchunhyang University Cheonan Hospital, Cheonan 31151, Korea
| | - Hye-Jin Lee
- Department of Physiology, College of Medicine, Soonchunhyang University, Cheonan 31151, Korea,Department of Medical Sciences, Soonchunhyang University, Asan 31238, Korea
| | - Jeong-Hwan Choi
- Department of Medical Sciences, Soonchunhyang University, Asan 31238, Korea
| | - Jeong-Beom Lee
- Department of Physiology, College of Medicine, Soonchunhyang University, Cheonan 31151, Korea,Department of Medical Sciences, Soonchunhyang University, Asan 31238, Korea,Correspondence Jeong-Beom Lee, E-mail:
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Park TH, Lee HJ, Kwon RW, Lee IH, Lee SJ, Park JI, Choo EA, Lee JB. Effects of caffeine ingestion and thermotherapy on blood orexin circulation in humans. Food Sci Biotechnol 2022; 31:1207-1212. [PMID: 35615306 PMCID: PMC9122480 DOI: 10.1007/s10068-022-01094-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 04/21/2022] [Accepted: 04/26/2022] [Indexed: 12/20/2022] Open
Abstract
Caffeine and orexin can affect awakening, neuroendocrine, and sympathetic nerve function. Our previous study has reported that caffeine intake can increase human body temperature. However, little is known about the combined effects of thermotherapy and caffeine intake on human serum orexin concentrations. Forty-two healthy male subjects with age of 26.72 ± 5.05 years, height of 174.10 ± 7.09 cm, and body weight of 74.68 ± 8.91 kg participated in this study. They were randomly assigned to a control (CON) group (n = 21) and a caffeine (CAFF) group (n = 21). After thermotherapy (half-body immersion in a hot water bath at 42 ± 0.5 °C, circulating orexin level increased more (p < 0.05) in the CAFF group than in the CON group. Positive relationships between mean body temperature and orexin were observed before and after heat stimulation (p < 0.001). Caffeine intake boosted the upregulation of serum orexin concentrations in subjects undergoing thermotherapy.
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Affiliation(s)
- Tae-Hwan Park
- Department of Physiology, College of Medicine, Soonchunhyang University, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan, 31151 Republic of Korea
| | - Hye-Jin Lee
- Department of Physiology, College of Medicine, Soonchunhyang University, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan, 31151 Republic of Korea
| | - Ryeo-Won Kwon
- Department of Physiology, College of Medicine, Soonchunhyang University, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan, 31151 Republic of Korea
| | - In-Ho Lee
- Department of Occupational and Environmental Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea
| | - Seung-Jea Lee
- Department of Medical Sciences, Soonchunhyang University, Asan, Republic of Korea
| | - Jong-In Park
- Department of Physiology, College of Medicine, Soonchunhyang University, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan, 31151 Republic of Korea
| | - Eon-Ah Choo
- Department of Physiology, College of Medicine, Soonchunhyang University, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan, 31151 Republic of Korea
| | - Jeong-Beom Lee
- Department of Physiology, College of Medicine, Soonchunhyang University, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan, 31151 Republic of Korea
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Chen Y, Zhang C, Lu L, Zheng X, Chang S. Dynamic of upper body sweat distribution in young males wearing fully encapsulated chemical protective ensembles. Sci Rep 2022; 12:990. [PMID: 35046487 PMCID: PMC8770470 DOI: 10.1038/s41598-022-04974-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 01/04/2022] [Indexed: 11/08/2022] Open
Abstract
Impermeability is a feature of fully encapsulated chemical protective ensembles (FCPE), which can affect people's sweat and affect their clothing's thermal-wet comfort. This study investigated the dynamics of upper-body sweat distribution in young males wearing FCPE and explored variations in sweat rate intra-region and inter-time for 10 young and healthy male college students. The study was carried in a climatic chamber (environment temperature 35 °C, relative humidity 60%) with participants exercising on a treadmill at 4 km/h, 5%. Sweat was collected using a 35-pad set of absorbent pads that were changed every 5 min during the course of the experiment. A total of 7-pad sets were collected with an average sweat rate of 389, 631, 920, 1137, 1100, 1211, and 1105 g m-2 h-1, respectively. The medial upper back, lateral lower back, medial upper chest, medial mid-back, and lateral top back had the highest sweat rates, with average values of 1406, 1278, 1198, 1181 and 1139 g m-2 h-1, respectively. The waist (with average values of 557, 370, 596, and 332 g m-2 h-1, respectively) and bottom zones (373, 398, 661, and 849 g m-2 h-1, respectively) had the lowest sweat rates. The above data showed that the role of FCPE in promoting body perspiration. The upper body may be split into three zones of sweat rates based on the distribution result allowing for the design of more comfortable clothing. The study includes the fundamental physiological data as well as the design recommendations for advanced personal protective equipment.
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Affiliation(s)
- Ying Chen
- School of Fashion, Beijing Institute of Fashion Technology, Beijing, China
- State Key Laboratory of NBC Protection for Civilian, Beijing, China
| | - Chuankun Zhang
- State Key Laboratory of NBC Protection for Civilian, Beijing, China
| | - Lin Lu
- State Key Laboratory of NBC Protection for Civilian, Beijing, China
| | - Xiaohui Zheng
- State Key Laboratory of NBC Protection for Civilian, Beijing, China.
| | - Suqin Chang
- School of Materials Design & Engineering, Beijing Institute of Fashion Technology, Beijing, China
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The acclimatization of Haenyeo to a cold environment and occupational characteristics evaluated by orexin and irisin levels. Ann Occup Environ Med 2022; 34:e28. [DOI: 10.35371/aoem.2022.34.e28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 08/25/2022] [Accepted: 09/20/2022] [Indexed: 11/05/2022] Open
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Park TH, Lee HJ, Lee JB. Effect of Heat Stimulation on Circulating Irisin in Humans. Front Physiol 2021; 12:675377. [PMID: 34262475 PMCID: PMC8273865 DOI: 10.3389/fphys.2021.675377] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 06/08/2021] [Indexed: 11/13/2022] Open
Abstract
High temperatures lead to oxidative stress. The aim of the study was to determine whether heat stimulation-induced hyperthermia can increase the level of circulating irisin. Twenty-one healthy female subjects (age, 26.3 ± 2.71 years; height, 162.1 ± 3.15 cm; weight, 54.2 ± 3.86 kg; and body surface area, 1.57 ± 0.11 m2) not taking contraceptives participated in this study. All experiments were performed individually for each participant when they were in the early proliferative menstrual phase. In an automated climate chamber (25 ± 0.5°C), the heat load was applied via half-body immersion into a hot water bath (42 ± 0.5°C). Five-minutes break was provided every after 5 min of immersion and the total passive heating time was 30 min. Tympanic temperature (Tt y) and skin temperature (Ts) were measured. Mean body temperature (mTb) was calculated. Blood samples were collected before and immediately after immersion. Levels of irisin, cortisol, creatine kinase (CK), and lactate dehydrogenase (LDH) were analyzed. Tty, mTb and serum irisin levels increased after hot water immersion. The blood levels of cortisol, CK, and LDH were also elevated after hot water immersion. Heat stimulation might increase the levels of circulating irisin in humans in response to oxidative stress.
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Affiliation(s)
- Tae-Hwan Park
- College of Medicine, Soonchunhyang University, Cheonan, South Korea
| | - Hye-Jin Lee
- Department of Physiology, College of Medicine, Soonchunhyang University, Cheonan, South Korea
| | - Jeong-Beom Lee
- Department of Physiology, College of Medicine, Soonchunhyang University, Cheonan, South Korea
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Park TH, Lee JB, Lee HJ, Yun B. Sex-related differences in sudomotor function in healthy early twenties focused on activated sweat gland density. CHINESE J PHYSIOL 2020; 63:1-6. [PMID: 32056980 DOI: 10.4103/cjp.cjp_46_19] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The purpose of this study was to quantitatively assess the difference in sudomotor function between healthy males and females in their early twenties by measuring skin surface area and activated sweat gland density (ASGD). The quantitative sudomotor axon reflex test (QSART), a method for evaluating autonomic nervous system activity, was used for quantification. In QSART, the sweat glands are activated directly or indirectly by the subcutaneous application of neurotransmitters, such as acetylcholine, through iontophoresis. This series of mechanisms is called the sudomotor axon reflex. After recording age, height, weight, and several measurements of the forearm, QSART was performed on 101 healthy controls aged 21-26 years to measure ASGD. The mean temperature and humidity on the measurement days were 11.4°C and 58.1% on May 3, 2018, and 14.7°C and 70.3% on May 10, 2018. The result of independent sample t-test showed higher ASGD in women (P < 0.05). The body surface area and the surface area of the forearms were higher in men (P < 0.001), but the number of activated sweat glands was not significantly different according to sex. The activated sweat gland counts of the body and forearms were analyzed through linear regression by age for males and females. Except for the activated sweat gland count of the male body, the analysis showed a tendency to decrease with increasing age but was not statistically significant in any case (P > 0.05). Showing insufficient coefficient of determination (R2), multiple regression analyses with sex and ages did not correct this insignificance between age and activated sweat gland count.
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Affiliation(s)
- Tae-Hwan Park
- College of Medicine, Soonchunhyang University, 366-1 Ssangyong-dong, Cheonan 31151, Republic of Korea
| | - Jeong-Beom Lee
- Department of Physiology, College of Medicine, Soonchunhyang University, 366-1 Ssangyong-dong, Cheonan 31151, Republic of Korea
| | - Hye-Jin Lee
- Department of Physiology, College of Medicine, Soonchunhyang University, 366-1 Ssangyong-dong, Cheonan 31151, Republic of Korea
| | - Bahda Yun
- College of Arts and Sciences, Case Western Reserve University, Cleveland, OH 44106, USA
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Jung D, Kim YB, Lee JB, Muhamed AMC, Lee JY. Sweating distribution and active sweat glands on the scalp of young males in hot-dry and hot-humid environments. Eur J Appl Physiol 2018; 118:2655-2667. [DOI: 10.1007/s00421-018-3988-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Accepted: 09/02/2018] [Indexed: 11/28/2022]
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