Associations Between Physical Activity Intensity, Resilience, Self-Esteem and Health-Related Quality of Life in University Students: A Structural Equation Modeling Approach

Background: University students often face significant psychological challenges and lifestyle disruptions that may compromise their mental resources and health-related quality of life (HRQoL). Although associations between physical activity (PA) and mental health have been widely reported, few studies have integrated different PA intensities, sedentary behavior, and psychological resources jointly related in one analytical model. Objective: This study investigated the relationships among vigorous (VPA), moderate (MPA), and light (LPA) physical activity, sedentary behavior (SB), resilience (RES), self-esteem (SE), and HRQoL in a sample of Chinese university students. Methods: A cross-sectional survey included 1560 university students from six universities in China, with a mean age of 19.43 ± 1.15 years; the sample comprised 434 males (27.8%) and 1126 females (72.2%). Relationships among the variables were tested using path analysis within a structural equation modeling framework. Results: Greater PA engagement was related to higher RES, SE, and HRQoL, whereas SB was not significantly associated with RES. All three PA intensities were positively associated with RES, although the magnitude of these associations varied. In addition, RES was also related to higher SE and HRQoL, and SE was related to higher HRQoL. Conclusions: These findings suggest that PA is associated with psychological resources and HRQoL among university students. Longitudinal and intervention studies are needed to determine the directionality and mechanisms underlying these relationships.