Feasibility of Reducing and Breaking Up University Students' Sedentary Behaviour: Pilot Trial and Process Evaluation

Background: Accumulating high levels of sedentary behaviour has been linked to poor health outcomes. This study examined the feasibility and preliminary, short-term effects a theory-based intervention aimed at reducing total prolonged in University students. Design: A quasi-experimental (pre-post) pilot study. Methods: Nine ambulatory undergraduate students (Mean age = 22 ± 2.32) participated one-on-one session, including an educational component around three distinct activities (feedback, “pros cons” exercise, suggested change strategies). In addition, automated daily text messages targeting were sent for 6 days (four per day fixed intervals). The Behaviour Change Wheel framework guided design process. Outcomes assessed over pre- post-intervention periods included accelerometer-based (activPAL) self-reported (Nightly-Week-U) time, as well number steps time. Students completed process evaluation interview upon completing trial. Results: From post-intervention, there was significant reduction time during weekend days. increase standing stepping There no statistically changes or weekdays. Process results indicated that its assessment is feasible. Reductions likely be mediated by positive student's reflective automatic motivation. Conclusions: Findings from this small, suggest single together with messages, may help reduce enhance movement Additional strategies maximise are discussed (e.g., establishing collaboration staff, introducing sit-to-stand desks, and/or facilitating social support). randomised control trial assessing longer period needed adequately intervention's effectiveness.