Physical activity promotion: precise matching of message frames and affect types

Procrastination in the Intention-Behaviour gap: Exercise procrastination and the moderating role of emotion

Health behaviour procrastination is closely associated with the intention-behaviour gap. However, research on health behaviour procrastination has tended to focus on bedtime procrastination, with relatively few studies on exercise procrastination. This research examined the relationship between exercise procrastination and the intention-behaviour gap through three studies. Additionally, based on the temporal-affective self-regulation resource model, the moderating role of emotion as a self-regulatory resource in exercise procrastination was explored. Study 1 validated the Chinese version of the newly developed Procrastination in Exercise Scale in two Chinese adult samples (N = 2376 and N = 393). Study 2 collected two waves of data from 447 Chinese adults (Mage = 31.19) and examined the mediating role of exercise procrastination in the intention-behaviour gap. Using a sample of 453 Chinese adults (Mage = 20.39), Study 3 investigated the moderating role of positive and negative affect in the association between intention and exercise procrastination. Cross-lagged analyses revealed the predictive roles of Time 1 intention on Time 2 exercise procrastination and Time 1 exercise procrastination on Time 2 physical activity. Exercise procrastination mediated the relationship between intention and physical activity. Examining the moderating role of emotion between intention (Time 1) and exercise procrastination (Time 2), Study 3 found that negative affect buffered this association. Findings highlight the role of exercise procrastination in explaining the intention-behaviour gap and shed new light on physical activity interventions, with implications for promoting exercise behaviour.

Observing Others' Workouts on Social Network Sites Improves the Observer's Physical Activity: A Moderated-Mediation Model

Many people like to share their physical activity (PA) experiences on social network sites (SNSs). Drawing on social cognitive theory, we examined in two studies whether observing others' workouts on SNSs could improve the observer's PA via the mediation of workout self-efficacy. In study 1, a two-wave longitudinal online survey of 461 participants, exposure to SNS workout posts was positively associated with PA through workout self-efficacy. In study 2, an online experimental study with 124 participants, manipulating perceived similarity revealed that it moderates between exposure to SNS workout posts and workout self-efficacy. Moreover, moderation of the indirect effect between exposure to SNS workout posts and PA via workout self-efficacy was supported. These findings reveal the mechanisms and boundary conditions of social media exposure improving workout self-efficacy and promoting PA.