Reducing daily sitting time by just 30 minutes has been proposed as a simple way to boost natural energy levels by improving metabolic function. Scientists found that this small change can enhance the body’s ability to burn both fats and carbohydrates for fuel efficiently.
This discovery holds significant benefits for individuals leading sedentary lifestyles and at higher risks of conditions like heart disease and diabetes. Previous studies have indicated that prolonged sitting, coupled with poor dietary habits, can lead to an imbalance in energy consumption, increasing the likelihood of chronic health issues.
Health experts emphasize the importance of daily habits in regulating the body’s energy usage and its ability to switch between fat and carbohydrate metabolism, known as metabolic flexibility. Dr. Taru Garthwaite from the University of Turku, Finland, explained that a healthy body primarily burns fat at rest but shifts to carbohydrates for energy after meals and during intense exercise. Impaired metabolic flexibility can lead to elevated blood sugar and lipid levels, potentially storing excess fat and sugars instead of utilizing them for energy production.
The study, featured in the Scandinavian Journal of Medicine and Science in Sports, involved 64 inactive adults with multiple risk factors for heart disease and diabetes. Instead of implementing a structured exercise regimen, participants in the intervention group were encouraged to reduce their daily sitting time by an hour through increased standing and light activity throughout the day. The control group maintained their usual sedentary habits, with both groups monitored for sitting time and physical activity levels using accelerometers over six months.
Dr. Garthwaite highlighted the study’s encouraging results, suggesting that reducing sedentary behavior and incorporating light physical activities, like standing during phone calls or short walks, can support metabolic health and potentially prevent lifestyle-related diseases in at-risk populations. Even a modest increase in physical activity can have positive effects on largely inactive individuals, as evidenced by the intervention group’s successful reduction in daily sitting time by an average of 40 minutes.
While not all participants met the target reduction, and some in the control group also reduced sitting time, no significant differences in metabolic flexibility were observed between the two groups after six months. However, participants who successfully decreased their sitting time by at least 30 minutes showed enhanced metabolic flexibility and improved fat oxidation during light exercise compared to those who remained mostly inactive.
Dr. Garthwaite emphasized that the benefits of reducing sedentary behavior are most likely significant for physically inactive individuals with excess weight and elevated disease risks. She concluded that while adhering to the recommended 2.5 hours of moderate-intensity activity weekly offers greater benefits, even a small increase in physical activity can be advantageous, especially for those leading sedentary lifestyles.