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.
Highlights
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
Physiological parameters were presented in mean ± standard deviation (SD)
Increased from 96 ±12.75 bpm to 169 ±4.50 bpm (73 bpm increase) (Fig. 4c) and Physiological strain index (PSI) increased from 1.8 ±0.53 to 8.8 ±0.54 (7 increase) (Fig. 4d) during measurement
Summary
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. Sweat is a key factor in garment comfort studies with5 regional[6,7], age-related[8], climate-linked gender-difference[9,10], heat acclimation[11], and physical level[10,12] variations in sweating have all been studied before. These studies consistently found that the largest sweat rate (SR) was observed for the torso over the body apart from the head, whereas the extremities showed the lowest rate. 20 cm2), which is generalized for the entire body leading to an inaccurate picture of regional relationships between these small sweat regions and the whole regions with installed ventilated capsules[3,5,18]
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