RESEARCH ARTICLE Feasibility and effects of a b

et Background deficit of motor response functions and a reduction in the Rogan et al. BMC Geriatrics (2015) 15:25 DOI 10.1186/s12877-015-0021-4baseline fitness and mobility levels in pre-frail or frail or6200 MD Maastricht, The Netherlands Full list of author information is available at the end of the articlePostural balance skills of the elderly become increasingly limited due to normal or pathological ageing [1]. These age related limitations in balance skills may be explained by changes in muscle mass, decreased reflex activity, mo-bility impairments, loss of somatosensory sensors as well as being due to an impairment of central processing, a functioning of the vestibular and visual systems [2,3]. These limitations are, furthermore, most likely associated with risk of injury or risk of falls [4-6]. A sedentary lifestyle in elderly individuals further increases the risk of falling whereas physically active elderly have a reduced risk, espe-cially for falls resulting in injuries [7]. Despite the fact that physical activity (PA) for elderly is one of the major elements for general health preven-tion, too few elderly engage in PA [8]. Inactive or seden-tary elderly should, therefore, be motivated to increase their PA [9]. It is important, however, to consider lo