A new study conducted by the University of Sydney suggests that the timing of physical activity could be more crucial than previously thought, particularly for individuals struggling with obesity. Published in the journal Diabetes Care, the research indicates that exercising in the evening may offer substantial health benefits, including a reduced risk of premature death and cardiovascular diseases.
The extensive study tracked 30,000 participants over nearly eight years, focusing on their engagement in moderate to vigorous physical activity (MVPA) — activities such as brisk walking or vigorous household tasks. Remarkably, those who performed such activities predominantly between 6 PM and midnight showed significant health improvements.
Dr. Angelo Sabag, a lecturer in Exercise Physiology at the University, pointed out that while exercise alone is not a complete solution for obesity, the findings suggest that the timing of physical activities is critical. “Scheduling exercise during specific times of the day could significantly mitigate the health risks associated with obesity,” Dr. Sabag stated. This conclusion stems from the analysis of extensive data collected through wearable devices that tracked the participants’ activity levels at different times throughout the day.
To ensure the reliability of their findings, the research team adjusted for various factors such as age, lifestyle habits, and pre-existing health conditions. The study’s observational nature is bolstered by its alignment with results from smaller clinical trials, suggesting a consistent pattern across different studies.
Professor Emmanuel Stamatakis, the study’s senior author and Director of the Mackenzie Wearables Research Hub, emphasized the role of wearable technology in identifying optimal times for exercise. “These insights are invaluable for crafting targeted health recommendations,” he noted, highlighting the potential impact on managing obesity and Type 2 diabetes.
While the study points to significant connections between exercise timing and health outcomes, more research is necessary to establish definitive causal relationships. However, the current findings open new possibilities in preventive healthcare, suggesting that not only the quantity but also the timing of exercise could play a vital role in health management strategies for obesity.
