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The effect of physical activity on psychological distress, cortisol and obesity: results of the farming fit intervention program

Brumby, Susan, Chandrasekara, Ananda, Kremer, Peter, Torres, Susan, McCoombe, Scott and Lewandowski, Paul 2013, The effect of physical activity on psychological distress, cortisol and obesity: results of the farming fit intervention program, BMC public health, vol. 13, Article 1018, pp. 1-15.

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Title The effect of physical activity on psychological distress, cortisol and obesity: results of the farming fit intervention program
Author(s) Brumby, Susan
Chandrasekara, Ananda
Kremer, Peter
Torres, Susan
McCoombe, Scott
Lewandowski, Paul
Journal name BMC public health
Volume number 13
Season Article 1018
Start page 1
End page 15
Total pages 15
Publisher BioMed Central
Place of publication London, England
Publication date 2013
ISSN 1471-2458
Keyword(s) obesity
cortisol
mental health
rural
farmer
Summary Background:
Rural and regional Australians have a higher likelihood of mental illness throughout their lifetime than people living in major cities, although the underlying reasons are not yet well defined. Additionally, rural populations experience more lifestyle associated co-morbidities including obesity, diabetes and cardiovascular disease. Research conducted by the National Centre for Farmer Health between 2004 and 2009 revealed a positive correlation between obesity and psychological distress among the farming community. Chronic stress is known to overstimulate the regulation of the hypothalamic-pituitary-adrenal (HPA) axis and cortisol secretion which are associated with abdominal adiposity. Increasing physical activity may normalise cortisol secretion and thereby positively impact both physical and mental health. This paper assesses the effects of increasing physical activity on obesity, health behaviors and mental health in Victorian farming men and women.

Methods:
Farming Fit was a six month quasi-experimental (convenience sample) longitudinal design control-intervention study. Overweight or obese (BMI ?25?kg/m2) farm men (n?=?43) and women (n?=?29) were recruited with demographic, health behaviors, anthropometric, blood pressure and biochemistry data collected at baseline and at a six months. Salivary cortisol and depression anxiety stress scale results were collected at baseline, three and six months. The intervention group (n?=?37) received a personalized exercise program and regular phone coaching to promote physical activity.

Results:
The intervention group showed significant reductions in body weight and waist circumference. Results indicated that following the six month exercise program, the intervention group were 2.64???0.65?kg lighter (p?<?0.001), had reduced waist circumference by 2.01???0.86?cm (p?=?0.02) and BMI by 0.97???0.22?kg/m2 (p?<?0.001) relative to the control group.

Conclusion:
Increasing physical activity altered measures of obesity in farm men and women but did not affect mental health measures or cortisol secretion levels.
Notes Reproduced with the kind permission of the copyright owner.
Language eng
Field of Research 111714 Mental Health
119999 Medical and Health Sciences not elsewhere classified
Socio Economic Objective 920401 Behaviour and Health
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2013, BioMed Central
Persistent URL http://hdl.handle.net/10536/DRO/DU:30057815

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.