Can we promote physical activity at the population level?

Findings from a community-based 5-year cluster randomised trial

Masamitsu Kamada, I-Min Lee and Ichiro Kawachi

Kamada authors

Despite the well-known health benefits of physical activity, physical inactivity remains highly prevalent globally. Effective population strategies to promote physical activity are needed to reduce the global burden of non-communicable diseases stemming from physical inactivity. But the question is: how do we effectively promote physical activity at the population level, such as in entire communities?

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It only takes a minute, girl: women who run for just 1 minute per day have better bone health

Vicky Stiles, Brad Metcalf, Karen Knapp and Alex Rowlands

Victoria_StilesBrad_MetcalfKaren_KnappAlex_Rowlands

We don’t yet know whether it’s best to do it all at once, or little and often, but what we do know is that if a woman’s day-to-day activity contains 1–2 minutes of weight-bearing, high-intensity activity, similar to a medium-paced run for pre-menopausal women or a slow jog for post-menopausal women, she will have better bone health than women who do less. The benefits of high-impact activity on bone health are nothing new. What is novel about our findings is that better bone health is linked to such a short amount of daily activity, albeit at an intensity of the running variety.

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