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Sun W, Liu Z, Xu J, Cheng Y, Yin R, Ma L, Li H, Qian X, Zhang H. 3D skin models along with skin-on-a-chip systems: A critical review. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107819] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Uchida K, Ogawa Y, Kataoka Y, Manabe K, Aida T, Kamijo YI, Takahashi S, Ikefuchi R, Nose H, Masuki S. New Portable Device for Continuous Measurement of Sweat Rate under Heat Stress during Field Tests. J Appl Physiol (1985) 2022; 132:974-983. [PMID: 35297691 DOI: 10.1152/japplphysiol.00155.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We have developed a portable method to measure sweat rate (SR) under heat stress during field tests. We randomly divided 15 males and 17 females (23-78years) into a group (EG) to determine an equation to convert a unit of SR (mmHg) by the portable method to that (mg·min-1·cm-2) by the ventilation method, and another group (VG) to validate the equation. Since we repeated measurements twice in three subjects, we randomly assigned the two measurements to one of the two groups and analyzed the results in 18 and 17 subjects for EG and VG, respectively. Subjects cycled for 20 min at moderate intensity in a warm environment while chest SR was simultaneously measured with a capsule installed with 4.8g of silica gel and two microfans (8.4cm3 volume) and with another capsule (12.6cm2 area) ventilated with dry air at 1.5l·min-1. Since the esophageal temperature (Tes) threshold for increasing SR and the slope of SR at a given increase in Tes by the portable method (x) were in high agreement with those values obtained by the ventilation method (y) in both groups (all, r>0.88, P<0.001), we determined regression equations for all subjects after pooling data from both groups: y=1.11x-3.99 and y=1.05x+0.01 when the 95% prediction limits were ±0.12°C and ±0.43 mg·min-1·cm-2·°C-1 with minimum mean differences over the range of 36.2 to 37.2°C and 0.2 to 2.4 mg·min-1·cm-2·°C-1, respectively, using Bland-Altman analysis. Based on these findings, we consider the portable device to be reliable enough to evaluate individual sweating capacity during field tests.
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Affiliation(s)
- Koji Uchida
- Departments of Sports Medical Science, Shinshu University Graduate School of Medicine, Matsumoto, Japan.,e-Health Sciences, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - Yu Ogawa
- Departments of Sports Medical Science, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - Yufuko Kataoka
- Departments of Sports Medical Science, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - Kazumasa Manabe
- Departments of Sports Medical Science, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - Takamichi Aida
- Departments of Sports Medical Science, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - Yoshi-Ichiro Kamijo
- Departments of Sports Medical Science, Shinshu University Graduate School of Medicine, Matsumoto, Japan.,Institute for Biomedical Sciences, Shinshu University, Matsumoto, Japan
| | - Sohta Takahashi
- Departments of Sports Medical Science, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - Ryo Ikefuchi
- Departments of Sports Medical Science, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - Hiroshi Nose
- e-Health Sciences, Shinshu University Graduate School of Medicine, Matsumoto, Japan
| | - Shizue Masuki
- Departments of Sports Medical Science, Shinshu University Graduate School of Medicine, Matsumoto, Japan.,Institute for Biomedical Sciences, Shinshu University, Matsumoto, Japan
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Cointereau‐Chardon S, Caberlotto E, Vicic M, Flament F. Self‐recording the skin hydration and Trans‐Epidermal Water Loss parameters: A pilot study. Skin Res Technol 2020; 26:713-717. [DOI: 10.1111/srt.12862] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 02/29/2020] [Indexed: 12/24/2022]
Affiliation(s)
| | | | - Marco Vicic
- L’Oréal Research and Innovation Chevilly‐Larue France
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