- Philipe de Souto Barreto, researcher1
- 1Gerontopole of Toulouse, INSERM UMR1027, University Hospital of Toulouse, 31000 Toulouse, France
- Accepted 17 December 2014
As part of their Global Action Plan in 2013 to reduce the avoidable burden of non-communicable diseases the World Health Organization proposed a 25% relative reduction in the risk of premature mortality from cardiovascular diseases, diabetes, cancer, and chronic respiratory diseases by 2025.1 The Global Action Plan recognised the importance of four risk factors in achieving this goal—smoking, harmful use of alcohol, unhealthy diet, and physical inactivity. WHO’s main goal regarding physical activity is to achieve a 10% relative reduction in the prevalence of insufficient physical activity, which is defined as <150 minutes of moderate intensity activity a week, or equivalent, for adults aged 18 or over (box 1).
Box 1: Definitions of physical activity
Sufficient physical activity—Meeting or exceeding current public health guidelines of 30 minutes of moderate activity five times a week or 20 minutes of vigorous activity three times a week, or equivalent
Insufficient physical activity—Failing to meet current public health guidelines for physical activity
Somewhat active—People who do some moderate or vigorous physical activity but not enough to meet current public health guidelines
Fully sedentary or fully inactive—People who do no moderate or vigorous physical activity regularly
WHO’s policy focuses on the ideal goal of 150 minutes of moderate activity a week, but here I argue that getting inactive people to do a little bit of physical activity, even if they don’t meet the recommendations, might provide greater population health gains.
Global physical activity
Physical activity promotes physical and mental health in different populations of all ages2 3 4 and is associated with the prevention of several non-communicable diseases5 6 7 …