Improving fitness centre indoor environment comfort and health: A method for evaluating indoor environmental quality based on subjective and objective factors

Compared to other indoor environments, indoor environments of fitness centre exhibit notable variations in heat, humidity and air quality. In this study, a 2-month field study was conducted on two fitness centres in a cold region of China. The results of this study revealed that fitness centres have high levels of indoor air pollutants, with significant variations in temperature and humidity. Moreover, the majority of individuals expressed dissatisfaction with the indoor environmental quality of fitness centres. The thermal comfort in fitness centres was closely associated with the ambient temperature and humidity. Amongst the pollutants affecting indoor air quality in fitness centres, carbon dioxide (CO 2 ) was shown to produce the most significant impact, followed by formaldehyde (CH 2 O), total volatile organic compounds (TVOC) and particulate matter (PM 2.5 ). In this study, a comprehensive evaluation model was developed to provide a reference for assessing the indoor environmental quality of fitness centres. The findings of this study can serve as a scientific foundation for the design and decoration of fitness centres, aiming to enhance the comfort and healthiness of the exercise environment.