A new study has sparked debate over the minimum amount of exercise required to maintain fitness, suggesting just five minutes a day could be enough. However, a leading expert in public health is questioning these claims, highlighting that such an approach may not live up to comprehensive health recommendations. Professor Devi Sridhar, Chair of Global Public Health at the University of Edinburgh, believes the interpretation of recent research should be viewed with caution.
The study in question used data from over 40,000 participants across seven international studies and the UK Biobank to model the impact of a five-minute increase in moderate activity on mortality rates. The findings estimated a 6-10% reduction in deaths among those who increased their physical activity by just five minutes. However, this was not a direct intervention study where individuals were instructed to undertake daily exercise for five minutes, but rather a complex statistical model.
Professor Sridhar is urging caution when it comes to relying on such studies as the basis for workout routines. While she agrees that some physical activity is better than none, particularly for those who are inactive, she stresses that this should not be taken to mean a five-minute daily routine will suffice. The body requires a range of exercises, including cardiovascular activities like walking or cycling, strength training like squats or press-ups, and flexibility exercises such as stretching.
The World Health Organisation (WHO) provides evidence-based guidelines for adult physical activity, recommending 150-300 minutes of moderate exercise per week. This translates to around 20-40 minutes daily, aiming to achieve significant health benefits while being realistic for most people. Professor Sridhar's concern is that focusing on minimal time increments may overlook the diverse types of movement essential for overall health.
While the idea of just five minutes of exercise a day may be appealing, it is crucial to consider established scientific data and guidelines when planning our physical activity routines. As we age, incorporating different types of exercise into our weekly routine becomes increasingly important to maintain overall well-being. Professor Sridhar concludes that while some physical activity is undoubtedly beneficial, relying solely on minimal time increments risks overlooking the complexity of human health.