Excerpts — Exercise Psychology-2nd Edition

Research on affect and exercise has typically involved the measurement of affect with self-report instruments, although human emotion has been estimated using psychophysiological and observational techniques.

Chemicals sensitize and activate type IV polymodal nociceptors. Polymodal nociceptors respond to painfully hot and cold temperatures as well as a host of chemical stimuli that activate the nociceptive afferents.

Characteristics of the target group, such as age, living situation, and income, should be considered in selecting interventions.