Psychophysiological and Cognitive Responses to Low-Volume High-Intensity Interval Exercise in Overweight-to-Obese Adults

This study aims to explore how stress-related hormones and psychological traits influence people's feelings and perceptions during a short and intense form of exercise called low-volume high-intensity interval exercise (Lv-HIIE). Adults with overweight or obesity participated in a supervised 10-week cycling program consisting of repeated one-minute high-intensity efforts separated by short recovery periods. The research examines how psychophysiological stress markers (such as cortisol and ACTH), cognitive traits (such as goal orientation and hardiness), and perceptual responses (such as exertion, mood, and enjoyment) change over time. Findings from this study may help develop exercise programs that are more enjoyable, sustainable, and personalized for individuals with higher body-mass categories.