Estimating the metabolic rate and associated physiological response for Indian subjects through climate chamber experiments

This paper estimates metabolic rate and physiological response associated with different activity intensities through controlled climate chamber experiments. We investigate the effect of activity intensity, personal and environmental factors on the subjects' heart rate, oxygen consumption, ener...

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Vydané v:Building and environment Ročník 207; s. 108466
Hlavní autori: Anand, Vivek, Sendhil, Devi, Rajasekar, E.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Oxford Elsevier Ltd 01.01.2022
Elsevier BV
Predmet:
Age
Air temperature
Body mass index
Body size
Camber
Climate chamber studies
Energy expenditure
Environmental factors
Ethnicity
Heart rate
Humidity
Metabolic rate
Metabolism
Minority & ethnic groups
Oxygen consumption
Physiological responses
Physiology
Relative humidity
Statistical analysis
Thermal comfort
Variation
Metabolic rate
Energy expenditure
Oxygen consumption
Thermal comfort
Climate chamber studies
ISSN:0360-1323, 1873-684X
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Shrnutí:This paper estimates metabolic rate and physiological response associated with different activity intensities through controlled climate chamber experiments. We investigate the effect of activity intensity, personal and environmental factors on the subjects' heart rate, oxygen consumption, energy expenditure, and metabolic rate (Mr). Forty-eight adult Indian subjects categorized based on age, gender, Body Mass Index (BMI), ethnicity and dietary practices are subjected to different temperature, relative humidity, and air velocity set-points. Cardio-Pulmonary Exercise Test (CPET) and Resting Metabolic Rate (RMR) Test are performed in a climate camber based on appropriate experimental protocols. We find substantial variation in the physiological responses concerning activity intensity. The difference in Mr for different age and BMI groups is statistically significant. Mr of stationary activities exhibits marginal variation with temperature change. However, Mr of non-stationary activities shows significant variation with temperature variations. The effect of relative humidity on Mr is significant for non-stationary activities. Ethnicity and dietary habits of the subjects depict good relationship with the mean Mr for non-stationary activities. There is a significant difference observed in the metabolic stabilisation period for different age group categories in non-stationary activities. We present the impact of these intrinsic variations of Mr on thermal comfort estimations. •Metabolic rate and physiological response for different activities are assessed for Indian subjects in a climate chamber.•A significant difference is found in metabolic rate and physiological response for different age, gender and BMI groups.•There is a significant difference in the metabolic rate of subjects of different ethnicity and dietary habits.
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ISSN:0360-1323
1873-684X
DOI:10.1016/j.buildenv.2021.108466