Physical activity and nutrition behavioural outcomes of a home-based intervention program for seniors : a randomized controlled trial.
Lee, Andy H.
Kerr, Deborah A.
Howat, Peter A.
Hills, Andrew P.
Anderson, Annie S.
Date of Issue2013
School of Physical and Mathematical Sciences
Background: This intervention aimed to ascertain whether a low-cost, accessible, physical activity and nutrition program could improve physical activity and nutrition behaviours of insufficiently active 60–70 year olds residing in Perth, Australia. Methods: A 6-month home-based randomised controlled trial was conducted on 478 older adults (intervention, n = 248; control, n = 230) of low to medium socioeconomic status. Both intervention and control groups completed postal questionnaires at baseline and post-program, but only the intervention participants received project materials. A modified fat and fibre questionnaire measured nutritional behaviours, whereas physical activity was measured using the International Physical Activity Questionnaire. Generalised estimating equation models were used to assess the repeated outcomes over both time points. Results: The final sample consisted of 176 intervention participants and 199 controls (response rate 78.5%) with complete data. After controlling for demographic and other confounding factors, the intervention group demonstrated increased participation in strength exercise (p < 0.001), walking (p = 0.029) and vigorous activity (p = 0.015), together with significant reduction in mean sitting time (p < 0.001) relative to controls. Improvements in nutritional behaviours for the intervention group were also evident in terms of fat avoidance (p < 0.001), fat intake (p = 0.021) and prevalence of frequent fruit intake (p = 0.008). Conclusions: A minimal contact, low-cost and home-based physical activity program can positively influence seniors’ physical activity and nutrition behaviours.
International journal of behavioral nutrition and physical activity
© 2013 The Authors. This paper was published in International Journal of Behavioral Nutrition and Physical Activity and is made available as an electronic reprint (preprint) with permission of the Authors. The paper can be found at the following official DOI: [http://dx.doi.org/10.1186/1479-5868-10-14]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.