RESEARCH

Full list of author information is available at the end of the articleBackground Physical activity is known to decline with age [1]. In Australia, 51 % of the older population aged 60 to 75 years are insufficiently active, with the highest preva-lence of inactive behaviour being reported in adults over 75 years of age [2]. Similarly, rates of physical activity among American adults aged 65 years and older are low, with only 20 % of women and 25 % of men meeting the national recommended physical activity guidelines [3], while 26 % of those in the 65–74 age group are inactive [4]. Research has demonstrated that sedentary beha-viours may be linked to obesity, cardiovascular diseases and type 2 diabetes [5-11]. Moreover, as people age, their nutritional requirements change and energy requirements decrease. Older adults should consum