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Non-communicable diseases (NCD) are a major burden worldwide.1 It has been estimated that elimination of physical inactivity would remove between 6% and 10% of the major NCDs of coronary heart disease, type 2 diabetes, and breast and colon cancers, and increase life expectancy.2 Walking is the ideal physical activity intervention to improve health across the population.3 A recent systematic review of 32 randomised controlled trials (RCTs) by Murtagh et al 4 showed that walking increases aerobic capacity and reduces blood pressure, waist circumference, body weight, per cent …
Competing interests None declared.
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