Thursday, November 22, 2007

Walking review

Physical activity is part of a health energy-balanced lifestyle, and may contribute to weight management. Walking is a daily physical activity of moderate intensity that can be done almost anywhere and by anyone. Oglivie and colleagues published a systematic review of intervention to promote walking in the Britsh Medical Journal (BMJ 2007;334:1204, electronic prepub;
Their review indicates that the most successful interventions could increase walking by up to 30-60 minutes a week. This may not seem like much, but if we could induce such changes in the population it would contribute substantially to prevention of unnecessary weight gain. However, the evidence was mostly concerned the short term only, and the evidence is mostly based on isolated studies, and the authors conclude that studies are needed on true effectiveness in real-life situations.