Dr. Strachan is currently on research leave until December 31, 2021. 


The primary objective of my research is to promote health through adherence to physical activity. My research centers on self-related variables and the role of these construct in the self-regulation of exercise.

Research areas

  • Exercise psychology
  • Health psychology
  • Exercise adherence
  • Self and identity and health behaviours
  • Social psychology and health behaviours


  • Physical Activity, Health and Wellness (PERS 1200)
  • Introduction to Research (PERS 3350)
  • Current Issues in Physical Activity, Health and Leisure: Psychosocial Aspects (PERS 7006)


Guerin, E., Strachan, S.M., & Fortier, M.S. (accepted). Exercise identity and well-being: Relationships with perceptions of identity behaviour consistency and passion. International Journal of Sport and Exercise Psychology.
Strachan, S.M., Stadig, G., Forneris, T., & Perras, G.M. (2017). I am an exerciser: Common conceptualizations of and variation in exercise identity. International Journal of Sport and Exercise Psychology, 15, 3, 321-336.
Webber, S., Pachu, N., Strachan, S. (2017). Sedentary behaviour cadence and physical activity outcomes after knee arthroplasty. Medicine and Science in Sports and Exercise, 49, 6, 1057-1065
Strachan, S.M., Marcotte, M., Giller, T., & Brunet, J & Schellenberg, B. (2017).
An online intervention to increase physical activity: Self-regulatory possible selves and the mediating role of task self-efficacy. Psychology of Sport and Exercise, 31, 158-165,
Perras, M., Strachan, S.M., Fortier, M & Dufault, B. (2016) Impact of a randomized possible selves experiment on new retirees’ physical activity and identity. European Review of Aging and Physical Activity, 13, 7.
Strachan, S.M., Perras, M.G.M., Brawley, L.R., & Spink, K.S. Exercise in challenging times: The predictive utility of identity, self-efficacy and past exercise. (2016). Sport, Exercise and Performance Psychology, 15, 3. 
Perras, M.G.M., Strachan, S.M., & Fortier, M. Possible selves and physical activity in Retirees: The mediating role of identity. (2016) Research on Aging, 38, 8, 819-841.
Bouchard, Strachan, Chitkara, McMillan, Johnson, Myrie, Moola, Jones & Geisbrecht (2016). Using shared treadmill workstations to reduce sedentary behaviour and its impact on  health outcomes: a pilot study. Journal of Physical Activity and Health. 13, 111-118.
Perras, G.M., Strachan, S.M., & Fortier, M. (2015).  Back to the Future: Associations between possible selves, identity and physical activity among new retirees. Activities, Adaptation and Aging. 39:4, 318-335,
Strachan, S.M., Brawley, L.R., Spink, K., Sweet, S.N & Perras, M. (2015). Self-regulatory efficacy’s role in the relationship between exercise identity and perceptions of and actual exercise behavior.  Psychology of Sport and Exercise, 18, pp.53-59.
Fortier, M.S, Guerin, E., Williams, T., & Strachan, S. (2015). Should I exercise or sleep to feel better? A daily analysis with physically active working mothers. Mental Health and Physical Activity, 8, 56-61.

Strachan, S.M. (2014). Exercise Identity. In. Robert C. Eklund and Gershon Tenenbaum (Eds.), Encyclopedia of Sport and Exercise Psychology. Sage.

Strachan, S.M., & Whaley, D. (2013). The role of self-identity in understanding exercise behaviour. In. P. Ekkekakis (Ed.), Handbook of physical activity and mental health. Routledge.
Sweet, S.N., Fortier, M.S., Strachan, S.M., Blanchard, C.M., Boulay, P. (accepted) Testing a longitudinal integrated self-efficacy and self-determination theory model for physical activity post-cardiac rehabilitation.  Submitted to Health Psychology Research.

Moola, F., Norman, M., Petherick, L., & Strachan, S. (in press). Teaching across the lines of fault in psychology and sociology: Health, obesity and physical activity in the Canadian context. Sociology of Sport.

Perrier, M.J., Smith, B., Strachan, S.M., & Latimer-Cheung, A.E., (2014). Narratives of athletic identity after acquiring a permanent, physical disability. Adapted Physical Activity Quarterly. 31, 106-124.

Berry, T., Strachan, S.M., & Verkooijen, K. (2013). The relationship between exercise schema and identity.  International Journal of Sport and Exercise Psychology. pp. 1-15.

Giles, A.R., Strachan, S.M., Doucette, M., & Stadig G.S. Adaptation to aquatic risk due to climate change in Pangnirtung, Nunavut. Arctic (66), 207-217.

Strachan, S.M., Fortier, M., Perras, M. G. M., & Lugg, C. (2012). Understanding variations in strength of exercise identity: An identity theory and self-determination theory perspective. The International Journal of Sport and Exercise Psychology.

Sweet, S.N., Fortier, M.S., Strachan, S.M., & Blanchard, C.M. (2012). Testing and integrating self-determination theory in a physical activity context. Canadian Psychology, 53, 319-327.

Flora, P.K., Strachan, S.M., Spink, K.S., & Brawley, L.R. (2012). Exercise identity and attribution properties predict negative self-conscious emotions for exercise relapse. Journal of Sport and Exercise Psychology. Journal of Sport and Exercise Psychology, 34, (5), 647-660.

Berry, T., & Strachan, S.M. (2012). Implicit and explicit exercise and sedentary identity. Research Quarterly for Exercise and Sport. 83, 479-484

Strachan, S.M., Shields, C.A., Beatty, J., & Glassford, A. (2012). Is it who I am or who I am with that counts? The associations between runner and group identity with adjustment to running group disbandment. Psychology of Sport and Exercise, 13, 4, 463-443.

Perrier, M.J., Sweet, S.N., Strachan, S.M., & Latimer-Cheung, A.E. (2012). I think, therefore I am: the addition of athletic identity to the Health Action Process Approach predicts sport participation for individuals with acquired physical disabilities. Journal of Sport and Exercise Psychology. 34(Suppl.), s271.

Strachan, S.M., Brawley, L.R., Spink, K.S., & Flora, P.K. (2011). Varying the cause of a challenge to exercise-identity behaviour: Reactions of individuals of differing identity strength. Journal of Health Psychology, 6, 572-583.

Strachan, S.M., Brawley, L. R., Spink, K., & Glazebrook, K. (2010). Older adults’ physically active identity: Relationships between social cognitions, physical activity and satisfaction with life. Psychology of Sport & Exercise, 11, 114-121.

Giles, A., Strachan, S.M., Stadig, G. & Baker, A. (2010). “Don’t be scared, you don’t have to wear your lifejacket”: Using the theory of planned behaviour to understand lifejacket usage in Tuktoyaktuk, Northwest Territories. Polar Record, 46, (4) 328-335.

Strachan, S.M., Brawley, L.R., Spink, K., & Jung, M.E. (2009). Strength of exercise identity and identity-behaviour consistency: Affective and social cognitive relationships. The Journal of Health Psychology, 14, 1196-1206.

Strachan, S.M., & Brawley, L.R. (2009). Healthy-eater identity and self-efficacy predict healthy eating behaviour: A prospective view. The Journal of Health Psychology, 14, 684-695.

Spink, K., Strachan, S.M., & Oknodon, P. (2008). Understanding the relationship between parent and child physical activity: A social control approach. Social Influence, 3, 189 201.

Strachan, S.M., & Brawley, L.R. (2008). Reactions to a challenge to identity: A focus on exercise and healthy eating. The Journal of Health Psychology, 13, 575-588.

Strachan, S.M., & Brawley, L.R. (2007). Social cognitive reactions to considering participation in weight management interventions. Journal of Applied Social Psychology, 37, 969-988.

Strachan, S.M., Woodgate, J., Brawley, L.R., & Tse, A. (2005). The relationship of self-efficacy and self-identity to the long-term maintenance of vigorous physical activity. Journal of Applied Biobehavioural Research, 10, 98-112.

Davis, C., Strachan, S.M., & Berkson, M. (2004). Sensitivity to reward: Implications for overeating and overweight. Appetite, 42, 131-138.

Davis, C., & Strachan, S.M. (2001). Elite female athletes with eating disorders: A study of psychopathological characteristics. Journal of Sport and Exercise Psychology, 23, 245-253.