“…16 groups of investigators [5,6,11,16,27,36,42,43,50,53,59,60,67,70,72,74] have evaluated habitual physical activity in patients from various age groups and with variously defined CIBD, using subjective and objective measures of physical activity that have included occupational categorization, completion of interviews or questionnaires, accelerometry and use of other objective sensors ( • ▶ Table 1). 12 of the 16 studies found levels of physical activity that were significantly lower in patients with CIBD than in controls, the difference generally being more marked for those classed as CD than for those with UC ( [27,43,53] but not [16]).…”