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Assoc Prof Caroline Horwath

BSc(Hons) PhD(Adel)

Caroline Horwath
Tel: 64 3 479 7946
Room: Science II, 7c2
Email:caroline.horwath@otago.ac.nz

Associate Professor Caroline Horwath has a particular interest in psychosocial influences on eating habits and weight gain, women’s health promotion and innovative approaches to the management of overweight and obesity. Caroline has a PhD from the University of Adelaide, Australia, and completed her dietetic training at Flinders University in South Australia.

Her current research includes a large nationwide prospective study of modifiable factors related to the prevention of weight gain in mid-life women. Factors of particular interest include: intuitive eating, speed of eating, mindfulness and the application of Self-Determination Theory and Acceptance and Commitment Therapy.

Recently she has also supervised a group of postgraduate students working on the development, pilot testing and qualitative evaluation of a web-based programme to teach intuitive eating. This programme, ‘Mind, Body, Food’, applies an Acceptance and Commitment Therapy approach.

Caroline’s earlier behavioural research focused on the older population, then moved to the application of the Transtheoretical Model of Behaviour Change to adult food intake.

She has research collaborations in the USA, Portugal and Australia.

Caroline combines her part-time academic position at Otago University with her private practice teaching mindfulness-based wellbeing and stress reduction courses for organisations, leaders and the public.

Caroline coordinates HUNT453 Topics in Behavioural and Applied Nutrition.

She also contributes to HUNT313 Life Cycle Nutrition.

Current postgraduate students, 2015

PhD

Sara Boucher. Teaching intuitive eating and Acceptance and Commitment Therapy skills for long-term weight management via a web-based intervention. 2012-2015

Melanie Dubyk. Intuitive eating and Weight Change over 5 years in mid-life women. 2014-present.

Master of Science

Rachel Davidson. Motivation, Self-determination and five year weight change. 2014-2015

Master of Dietetics

Emma Barraclough. Qualitative evaluation of women’s experiences of learning to eat more intuitively. 2015

Libby Stuart. Relationships between brain activity in the dorsal anterior cingulate cortex (dACC) and eating behaviour and attitudes. 2015

Recent Graduates

PhD

Sook Ling Leong. A prospective nationwide study of factors associated with weight gain prevention in adult women. 2012-2014

Master of Science

Bonnie White. Stress, mood and eating behaviour. 2011-2012

Sookling Leong. Weight control practices and regulation of eating behaviour in New Zealand women. 2010-2011

Clara Madden. Intuitive eating, food patterns, mindfulness, experiential avoidance and BMI: A random population study of New Zealand women. 2010-2011

Greer Hawley. Two-year follow-up of participants in three weight management programmes for overweight and obese women. 2005-2006

Lisa Katzer. A randomized trial of three non-dieting interventions for overweight and obese women. 2003-2004

Alison Bradshaw. Evaluation of a non-dieting, mind-body programme for overweight women: A randomised trial. 2003-2004

Master of Dietetics

Sara Widdowson. Weight self-stigma in mid-life New Zealand women: a nationwide study. 2014

Lucy Dekker. Intuitive eating and 3-year weight change in mid-age women. 2014

Olivia Edwards. Development of a web-based intervention for weight gain prevention in mid-age women. 2012

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Publications

Carraça, E. V., Leong, S. L., & Horwath, C. C. (2019). Weight-focused physical activity is associated with poorer eating motivation quality and lower intuitive eating in women. Journal of the Academy of Nutrition & Dietetics, 119(5), 750-759. doi: 10.1016/j.jand.2018.09.011

Barraclough, E. L., Hay-Smith, E. J. C., Boucher, S. E., Tylka, T. L., & Horwath, C. C. (2019). Learning to eat intuitively: A qualitative exploration of the experience of mid-age women. Health Psychology Open, 6(1). doi: 10.1177/2055102918824064

Paterson, H., Treharne, G. J., Horwath, C., Haszard, J. J., Herbison, P., & Hay-Smith, E. J. C. (2019). Intuitive eating and gestational weight gain. Eating Behaviors, 34, 101311. doi: 10.1016/j.eatbeh.2019.101311

Horwath, C., Hagmann, D., & Hartmann, C. (2018). Intuitive eating and food intake in men and women: Results from the Swiss food panel study. Appetite. Advance online publication. doi: 10.1016/j.appet.2018.12.036

Romain, A. J., Horwath, C., & Bernard, P. (2018). Prediction of physical activity level using processes of change from the transtheoretical model: Experiential, behavioral, or an interaction effect? American Journal of Health Promotion, 32(1), 16-23. doi: 10.1177/0890117116686900

Authored Book - Research

Russell, D. G., Parnell, W. R., Wilson, N. C., Faed, J. M., Ferguson, E. L., Horwath, C. C., Herbison, G. P., Nye, E. R., Reid, P., Walker, R. J., Wilson, B. D., & Tukuitonga, C. (1999). NZ Food: NZ People. Key results of the 1997 National Nutrition Survey (LINZ® Activity & Health Research Unit). Wellington: Ministry of Health, 268p.

Horwath, C. C. (1996). Food and Nutrition Guidelines for Healthy Older People: a Background Paper. 2nd edn. Wellington: Ministry of Health, 40p.

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Chapter in Book - Research

de Groot, L., van Staveren, W., & Horwath, C. (2017). Nutrition and ageing. In J. Mann & A. S. Truswell (Eds.), Essentials of human nutrition. (5th ed.) (pp. 546-561). Oxford University Press.

van Staveren, W., de Groot, L., & Horwath, C. (2012). Nutrition and ageing. In J. Mann & A. S. Truswell (Eds.), Essentials of human nutrition. (4th ed.) (pp. 572-590). Oxford University Press.

Horwath, C., & van Staveren, W. (2007). Nutrition and ageing. In J. Mann & A. S. Truswell (Eds.), Essentials of human nutrition. (3rd ed.) (pp. 502-514). Oxford University Press.

Horwath, C. C. (2002). Nutrition and ageing. In J. I. Mann & A. S. Truswell (Eds.), Essentials of Human Nutrition. (2nd ed.) (pp. 551-565). Oxford: Oxford University Press.

Horwath, C. C. (1998). Nutrition and ageing. In J. I. Mann & A. S. Truswell (Eds.), Essentials of Human Nutrition. (pp. 499-511). Oxford, United Kingdom: Oxford University Press.

Horwath, C. C. M., Campbell, A. J., Robertson, M. C., & Busby, W. J. (1995). The Mosgiel study of health and nutrition in old age: dietary habits of elderly persons with known diabetes mellitus. In B. J. Vellas, P. Sachet & R. J. Baumgartner (Eds.), Facts and Research in Gerontology: Supplement: Nutrition. (pp. 63-72). Paris: Serdi Publishing Company.

Horwath, C. C., Campbell, A. V., & Busby, W. J. (1995). A comparison of health, food intake and nutrition in the elderly in New Zealand and Australia. In N. Scrimshaw, M. L. Walquist, W. van Staveren & B. Hage (Eds.), Food Habits in Later Life: Cross Cultural Approaches.

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Journal - Research Article

Carraça, E. V., Leong, S. L., & Horwath, C. C. (2019). Weight-focused physical activity is associated with poorer eating motivation quality and lower intuitive eating in women. Journal of the Academy of Nutrition & Dietetics, 119(5), 750-759. doi: 10.1016/j.jand.2018.09.011

Paterson, H., Treharne, G. J., Horwath, C., Haszard, J. J., Herbison, P., & Hay-Smith, E. J. C. (2019). Intuitive eating and gestational weight gain. Eating Behaviors, 34, 101311. doi: 10.1016/j.eatbeh.2019.101311

Barraclough, E. L., Hay-Smith, E. J. C., Boucher, S. E., Tylka, T. L., & Horwath, C. C. (2019). Learning to eat intuitively: A qualitative exploration of the experience of mid-age women. Health Psychology Open, 6(1). doi: 10.1177/2055102918824064

Horwath, C., Hagmann, D., & Hartmann, C. (2018). Intuitive eating and food intake in men and women: Results from the Swiss food panel study. Appetite. Advance online publication. doi: 10.1016/j.appet.2018.12.036

Romain, A. J., Horwath, C., & Bernard, P. (2018). Prediction of physical activity level using processes of change from the transtheoretical model: Experiential, behavioral, or an interaction effect? American Journal of Health Promotion, 32(1), 16-23. doi: 10.1177/0890117116686900

Paterson, H., Hay-Smith, J., Treharne, G., Herbison, P., & Horwath, C. (2018). Validation of the Intuitive Eating Scale in pregnancy. Journal of Health Psychology, 23(5), 701-709. doi: 10.1177/1359105316671186

Leong, S. L., Gray, A., Haszard, J., & Horwath, C. (2016). Weight-control methods, 3-year weight change, and eating behaviors: A prospective nationwide study of middle-aged New Zealand women. Journal of the Academy of Nutrition & Dietetics, 116, 1276-1284. doi: 10.1016/j.jand.2016.02.021

De Ridder, D., Manning, P., Leong, S. L., Ross, S., Sutherland, W., Horwath, C., & Vanneste, S. (2016). The brain, obesity and addiction: An EEG neuroimaging study. Scientific Reports, 6, 34122. doi: 10.1038/srep34122

Boucher, S., Edwards, O., Gray, A., Nada-Raja, S., Lillis, J., Tylka, T. L., & Horwath, C. C. (2016). Teaching intuitive eating and acceptance and commitment therapy skills via a web-based intervention: A pilot single-arm intervention study. JMIR Research Protocols, 5(4), e180. doi: 10.2196/resprot.5861

Leong, S. L., Gray, A., & Horwath, C. C. (2016). Speed of eating and 3-year BMI change: A nationwide prospective study of mid-age women. Public Health Nutrition, 19(3), 463-469. doi: 10.1017/S1368980015001548

Boucher, S., Gray, A., Leong, S. L., Sharples, H., & Horwath, C. (2015). Token monetary incentives improve mail survey response rates and participant retention: Results from a large randomised prospective study of mid-age New Zealand women. New Zealand Medical Journal, 128(1413). Retrieved from https://www.nzma.org.nz/journal

Geller, K. S., Nigg, C. R., Ollberding, N. J., Motl, R. W., Horwath, C., & Dishman, R. K. (2015). Access to environmental resources and physical activity levels of adults in Hawaii. Asia-Pacific Journal of Public Health, 27(2), NP288-NP298. doi: 10.1177/1010539512440593

Ciarrochi, J., Sahdra, B., Marshall, S., Parker, P., & Horwath, C. (2014). Psychological flexibility is not a single dimension: The distinctive flexibility profiles of underweight, overweight, and obese people. Journal of Contextual Behavioral Science, 3(4), 236-247. doi: 10.1016/j.jcbs.2014.07.002

Leong, S. L., Madden, C., Gray, A. R., & Horwath, C. C. (2013). A nationwide survey of weight control practices among middle-aged New Zealand women. New Zealand Medical Journal, 126(1386). Retrieved from http://www.nzma.org.nz/journal

Woolcott, C. G., Dishman, R. K., Motl, R. W., Horwath Matthaei, C., & Nigg, C. R. (2013). Physical activity and fruit and vegetable intake: Correlations between and within adults in a longitudinal multiethnic cohort. American Journal of Health Promotion, 28(2), 71-79. doi: 10.4278/ajhp.100917-QUAN-312

White, B. A., Horwath, C. C., & Conner, T. S. (2013). Many apples a day keep the blues away: Daily experiences of negative and positive affect and food consumption in young adults. British Journal of Health Psychology, 18(4), 782-798. doi: 10.1111/bjhp.12021

Horwath, C. C., Schembre, S. M., Motl, R. W., Dishman, R. K., & Nigg, C. R. (2013). Does the Transtheoretical Model of behavior change provide a useful basis for interventions to promote fruit and vegetable consumption? American Journal of Health Promotion, 27(6), 351-357. doi: 10.4278/ajhp.110516-QUAN-201

Geller, K. S., Nigg, C. R., Motl, R. W., Horwath, C. C., & Dishman, R. K. (2012). Transtheoretical model constructs for physical activity behavior are invariant across time among ethnically diverse adults in Hawaii. Psychology of Sport & Exercise, 13(5), 606-613. doi: 10.1016/j.psychsport.2012.02.006

Ollberding, N. J., Nigg, C. R., Geller, K. S., Horwath, C. C., Motl, R. W., & Dishman, R. K. (2012). Food outlet accessibility and fruit and vegetable consumption. American Journal of Health Promotion, 26(6), 366-370. doi: 10.4278/ajhp.101215-ARB-401

Leong, S. L., Madden, C., Gray, A., & Horwath, C. (2012). Self-determined, autonomous regulation of eating behavior is related to lower body mass index in a nationwide survey of middle-aged women. Journal of the Academy of Nutrition & Dietetics, 112(9), 1337-1346. doi: 10.1016/j.jand.2012.04.018

Sharples, H., Crutchley, P. W., García, J. A., Gray, A. R., & Horwath, C. C. (2012). Agreement between measured and self-reported height, weight and BMI in predominantly European middle-aged New Zealanders: Findings from a nationwide 1989 survey. New Zealand Medical Journal, 125(1362). Retrieved from http://www.nzma.org.nz/journal

Madden, C. E. L., Leong, S. L., Gray, A., & Horwath, C. C. (2012). Eating in response to hunger and satiety signals is related to BMI in a nationwide sample of 1601 mid-age New Zealand women. Public Health Nutrition, 15(12), 2272-2279. doi: 10.1017/s1368980012000882

Mainvil, L. A., Horwath, C. C., McKenzie, J. E., & Lawson, R. (2011). Validation of brief instruments to measure adult fruit and vegetable consumption. Appetite, 56(1), 111-117. doi: 10.1016/j.appet.2010.09.008

Leong, S. L., Madden, C., Gray, A., Waters, D., & Horwath, C. (2011). Faster self-reported speed of eating is related to higher body mass index in a nationwide survey of middle-aged women. Journal of the American Dietetic Association, 111(8), 1192-1197. doi: 10.1016/j.jada.2011.05.012

Nigg, C. R., Geller, K. S., Motl, R. W., Horwath, C. C., Wertin, K. K., & Dishman, R. K. (2011). A research agenda to examine the efficacy and relevance of the Transtheoretical Model for physical activity behavior. Psychology of Sport & Exercise, 12(1), 7-12. doi: 10.1016/j.psychsport.2010.04.004

Chai, W., Nigg, C. R., Pagano, I. S., Motl, R. W., Horwath, C., & Dishman, R. K. (2010). Associations of quality of life with physical activity, fruit and vegetable consumption, and physical inactivity in a free living, multiethnic population in Hawaii: A longitudinal study. International Journal of Behavioral Nutrition & Physical Activity, 7. doi: 10.1186/1479-5868-7-83

Mainvil, L. A., Lawson, R., Horwath, C. C., McKenzie, J. E., & Hart, I. (2010). Validated scales to assess adult decisional balance to eat more fruits and vegetables. Appetite, 55(3), 454-465. doi: 10.1016/j.appet.2010.08.007

Bradshaw, A. J., Horwath, C. C., Katzer, L., & Gray, A. (2010). Non-dieting group interventions for overweight and obese women: What predicts non-completion and does completion improve outcomes? Public Health Nutrition, 13(10), 1622-1628. doi: 10.1017/S1368980009992977

Horwath, C. C., Nigg, C. R., Motl, R. W., Wong, K. T., & Dishman, R. K. (2010). Investigating fruit and vegetable consumption using the transtheoretical model. American Journal of Health Promotion, 24(5), 324-333. doi: 10.4278/ajhp.071218138

Nigg, C. R., McCurdy, D. K., McGee, K. A., Motl, R. W., Paxton, R. J., Horwath, C. C., & Dishman, R. K. (2009). Relations among temptations, self-efficacy, and physical activity. International Journal of Sport & Exercise Psychology, 7(2), 230-243.

Nigg, C. R., Motl, R. W., Wong, K. T., Yoda, L. U., McCurdy, D. K., Paxton, R., Horwath, C. C., & Dishman, R. K. (2009). Impact of mixed survey modes on physical activity and fruit/vegetable consumption: A longitudinal study. Survey Research Methods, 3(2), 81-90.

Mainvil, L. A., Lawson, R., Horwath, C. C., McKenzie, J. E., & Reeder, A. I. (2009). Validated scales to assess adult self-efficacy to eat fruits and vegetables. American Journal of Health Promotion, 23(3), 210-217.

Dishman, R. K., Thom, N. J., Rooks, C. R., Motl, R. W., Horwath, C., & Nigg, C. R. (2009). Failure of post-action stages of the transtheoretical model to predict change in regular physical activity: A multiethnic cohort study. Annals of Behavioral Medicine, 37(3), 280-293. doi: 10.1007/s12160-009-9113-8

Katzer, L., Bradshaw, A. J., Horwath, C. C., Gray, A. R., O'Brien, S., & Joyce, J. (2008). Evaluation of a ″nondieting″ stress reduction program for overweight women: A randomized trial. American Journal of Health Promotion, 22(4), 264-274.

Hawley, G., Horwath, C., Gray, A., Bradshaw, A., Katzer, L., Joyce, J., & O'Brien, S. (2008). Sustainability of health and lifestyle improvements following a non-dieting randomised trial in overweight women. Preventive Medicine, 47, 593-599. doi: 10.1016/j.ypmed.2008.08.008

Paxton, R. J., Nigg, C. R., Motl, R. W., McGee, K., McCurdy, D., Horwath Matthaei, C., & Dishman, R. K. (2008). Are constructs of the transtheoretical model for physical activity measured equivalently between sexes, age groups, and ethnicities? Annals of Behavioral Medicine, 35(3), 308-318. doi: 10.1007/s12160-008-9035-x

Grylls, W. K., McKenzie, J. E., Horwath, C. C., & Mann, J. (2003). Lifestyle factors associated with glycaemic control and body mass index in older adults with diabetes. European Journal of Clinical Nutrition, 57, 1386-1393.

de Jong, N., Green, T. J., Skeaff, C. M., Gibson, R., McKenzie, J. E., Ferguson, E. L., Horwath, C. C., & Thomson, C. D. (2003). Vitamin B12 and folate status of older New Zealand women. Asia Pacific Journal of Clinical Nutrition, 12(1), 85-91.

Mainvil, L. A., Horwath, C. C., McKenzie, J., & Reeder, A. I. (2002). Validated scales of perceived benefits and barriers to eating fruit and vegetables. Appetite, 39(3), 247. London, UK: Appetite. Retrieved from http://www.elsevier.com/homepage

Gulliver, P., & Horwath, C. C. (2001). Assessing women's perceived benefits, barriers, and stage of change for meeting milk product consumption recommendations. Journal of the American Dietetic Association, 101(11), 1354-1357.

Horwath, C. C., Parnell, W. R., Wilson, N. C., & Russell, D. G. (2001). Attaining optimal bone status: Lessons from the 1997 National Nutrition Survey. New Zealand Medical Journal, 114, 138-141.

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