Integration of multiple physiological signals to evaluate the human body’s response to an environmental challenge

This paper details the combination of heart rate, core body temperature, and actigraphy in an ambient daily living environment to enhance the understanding of the overall physiology of the human body. Such research represents a new advancement in the area of physiological measurements. Measurement of a single physiological variant only provides one aspect of the body's response to the environment while the combination of multiple measurements can clarify the complex physiological response. The combination of physiological measurements in field exercises has demonstrated that multiple physiological signals may better predict an individual's response to the environment. The integration of heart rate, core body temperature and actigraphy measurements are discussed. Applications exist in personal health, sports performance, and in hazardous material applications.