The BBS26 is a functional balance measurement and consists of 14 items. Each item is a 5-point ordinal scale ranging from 0 to 4, with 0 indicating an inability to complete the task entirely and 4 indicating an ability to complete the task criterion. Scores can range from 0 to 56. The higher the score, the better the balance.

The IPAQ is used to assess habitual physical activitiy during the past 7 days. The IPAQ used in the present study is the long version which covers four domains of physical activity: occupational (7 items), transportation (6 items), household/gardening (6 items) and leisure-time activities (6 items). The questionnaire also includes two questions about the time spent on sitting as an indicator of sedentary behavior. The number of days per week and the time spent on walking per day as well as moderate and vigorous activities from all four domains are recorded. The IPAQ data were converted to metabolic equivalent scores (MET-min-week-1) for each type of activity, by multiplying the number of minutes dedicated to each activity class by the specific MET score for that activity. Physical activity levels were also classified into three categories: inactive, minimally active and health-enhancing physically active, according to the scoring system provided by the IPAQ.