Approaches to increase physical activity: reviewing the evidence for exercise-referral schemes

Exercise-referral schemes appear to increase physical activity levels in certain populations, namely individuals who are not sedentary but already slightly active, older adults and those who are overweight (but not obese). However, increases in the level of physical activity may not be sustained over time. Further studies are required to assess effectiveness in a range of populations and for different activities, and to find strategies to increase long-term adherence.