Physical Exercise and Undergraduate Students' Subjective Well-Being: Mediating Roles of Basic Psychological Need Satisfaction and Sleep Quality.

This study aimed to examine the association between physical exercise and subjective well-being among undergraduate students, as well as its underlying mechanism-the potential mediating roles of basic psychological need satisfaction and sleep quality-from the perspective of self-determination theory. A sample of 770 undergraduate students (mean age was 19.90 ± 1.15 years old; 464 women) were recruited voluntarily to complete a set of measures examining physical exercise habits, psychological need satisfaction in exercise, sleep quality, and subjective well-being. The results indicated that (1) physical exercise was positively associated with undergraduate students' subjective well-being; (2) psychological need satisfaction and sleep quality could significantly mediate this relation, which contained three pathways-the independent mediating effects of sleep quality and basic psychological need satisfaction and the sequential mediating effect of them. These findings not only reveal the mediating mechanism underlying the relation between physical exercise and subjective well-being by integrating the psychological and physical factors together but also provide an empirical basis for formulating prevention and intervention programs aimed at promoting the health and subjective well-being of undergraduate students.

Online Interpersonal Sexual Objectification Experiences and Teenage Girls' Self-Objectification: The Role of Broad Conceptualization of Beauty.

Self-objectification is a common and deleterious phenomenon among young teenage girls, for which interpersonal sexual objectification experiences are a great risk; in the current information era, sexual objectification experiences may also expand into the online space. Based on this, this study aimed to examine the association between online interpersonal sexual objectification (OISO) experiences and teenage girls' self-objectification, as well as the potential moderating role of broad conceptualization of beauty in relation to this. Seven hundred and seventy-one female undergraduate students were recruited voluntarily to complete questionnaires on OISO experiences, self-objectification, and the broad conceptualization of beauty. Results indicated that OISO experiences were positively associated with teenage girls; self-objectification and the broad conceptualization of beauty could significantly buffer this relation, which was weakened among individuals with a high level of broad conceptualization of beauty. This study expands previous research on sexual objectification, providing practical significance for promoting the well-being of teenage girls.