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Articles in Peer-Reviewed Journals

• Dillon, K., Hiemstra, M., Mitchell, M.,Bartmann, N., Rollo, S., Gardiner, P., & Prapavessis, H (ahead of print, 2021). Validity of the occupational sitting and physical activity questionnaire (OSPAQ) for home-based office workers during the COVID-19 global pandemic: A secondary analysis. Applied Ergonomics.
• Sick, K., Rollo, S., & Prapavessis, H (2021). Exploring the relationship between adults’ perceptions of sedentary behaviours and psychological stress: Is your mindset stressing you out? International Journal of Sport and Exercise Psychology, 20(4), 1208-1224.
• Dillon, K., Rollo, A., & Prapavessis, H (2021). A Combined Health Action Process Approach and mHealth Intervention to Reduce Sedentary Behaviour in University Students – A Randomized Controlled Trial. Psychology & Health, 37(6), 692-711. .
• Sui, W & Prapavessis, H. (2021). The Effect of an Acute Sedentary Behaviour Reducing Intervention on Subjective Well-Being among University Students: A Pilot Randomized Trial. Health Psychology Bulletin, 5(1), pp. 46-60. DOI:
• Vargas-Terrones M, Nagpal TS, Perales M, Prapavessis H, Mottola MF, Barakat R (2021). Physical activity and prenatal depression: going beyond statistical significance by assessing the impact of reliable and clinical significant change. Psychological Medicine 51, 688–693. https://doi.org/10.1017/ S0033291719003714
• Rollo, A., & Prapavessis, H (2020). A Combined Health Action Process Approach and mHealth Intervention to Reduce Workplace Sitting Time in Office-Working Adults: A Secondary Analysis Examining Health-related Quality of Life and Work Performance Outcomes. Psychology & Health, Oct, 1-17 .
• Dillon, K.., & Prapavessis, H., (2020). "REducing SEDENTary Behavior Among Mild to Moderate Cognitively Impaired Assisted Living Residents: A Pilot Randomized Controlled Trial (RESEDENT Study)". Journal of Aging and Physical Activity, 29(1), 27-35. 10.1123/japa.2019-0440.

Visit for a comprehensive list of publications.

• Prapavessis, H (2018-2020). Less couch, less grouch: Investigating the relationship between sedentary behaviour and subjective well-being. Social Sciences and Humanities Research Council of Canada ($63,000)
• Prapavessis, H (Jan 2022—Dec 2022) Using a stress induction model to examine how exercise modulates improvements in executive functions °ÄÃÅÁùºÏ²Ê¿ª½±Ô¤²â Strategic Support for NSERC ($25,000)

• Kirsten Dillon (2019-2022). PhD, School of Kinesiology. Faculty of Health Sciences.

• Scott Rollo (2015-2019). School of Kinesiology. Faculty of Health Sciences.

• Brett Carter (2020-2022). MA, School of Kinesiology. Faculty of Health Sciences.

• Babac Salmani (2020-2021). MA, School of Kinesiology. Faculty of Health Sciences.

• Anisa Morava (2017-2019). MA, School of Kinesiology. Faculty of Health Sciences.

Visit for a list of completed student theses and dissertations in the repository.

Project 1.
To uncover the effect of acute exercise on alcohol craving. The proposed project will induce alcohol craving using an alcohol-prime dose, which leads to strong alcohol craving (i.e., hot cognitions of craving) among at risk heavy social drinkers.

Project 2.
The looming cognitive vulnerability model (LCVM) posits that anxiety stems from the perception that a certain stimulus is not just a threat, but also that the threat is increasing in size by progressing closer to the individual in time and/or space. Although most previous research on the LCVM focuses on therapeutic clinical interventions to reduce anxiety disorders, the model is also potentially applicable to the area of adaptive behavioral change . One behavior that many young people are engaging in today is vaping. The objective of the current project is to use the LCVM as a framework to increase young people’s anxiety regarding the health consequences of vaping, in the hope that this will motivate them to try to take protective action through refraining from vaping or reducing vaping use.

Project 3.
There is robust evidence that caffeine buffers the mental fatigue, which arises from sustained time-on-task. Whether acute exercise buffers mental fatigue to the same degree as caffeine remains unknown. This project will she light on this issue.

For more information, please send an email to professor Prapavessis at hprapave@uwo.ca.

• Cross-Appointed Professor, Department of Oncology
• Director,
• Mentor, Canadian Institutes of Health Research (CIHR): Strategic Training Program in Cancer Research and Technology Transfer

• Faculty Scholar

• Reviewer:
  • Canadian Institutes of Health Research
  • Natural Sciences and Engineering Research Council of Canada
  • Social Sciences and Humanities Research Council of Canada
  • Canada Foundation for Innovation