<qa>  What was the timed up and go test?leisure time physical activity by the Godin and Shephard GS questionnaire. Balance tests - the Timed Up and Go test TUG and functional reach test FRT. Maximal isometric strength was assessed by using a hand held dynamometer; walking dynamics were recorded by an electronic mat, and the 6 minute walk test, energy expenditure index EEI and perceived exertion by the OMNI scale. 