United States: A new study says that sitting or lying down for too long each day can increase the risk of heart disease and even death. The study, published in the Journal of the American College of Cardiology, found that spending more than 10.5 hours a day being inactive is linked to higher chances of heart failure and cardiovascular problems. This is true even if you still exercise the recommended amount.
Inadequate physical activity is a recognized risk determinant of CVD. According to the present guidelines, more than 150 minutes of M-VPA per week is indicated for heart health. But according to the study’s experts the current guidelines represent exercise as only a small fraction of daily activity while excluding sedentary behaviour which, according to the existing evidence, relates with CVD risk tendencies to a significant extent.
As reported by the Medicalxpress, this working reviewed the specific level of sedentary time at which the CVD risk is highest and also examined the effect of time spent in sedentary behavior and physical activity on AF, HF, MI and CV mortality.
In various participants of 89,530 of the study including the UK biobank, the average age of male participants was 62 years and 56.4% were women. Participants recorded data from a wrist-worn triaxial accelerometer for seven consecutive days. It was 9.4 hours on average the respondents spent being sedentary during the day.
The incident AF, HF, indecent MI and CV death rates at an average follow-up of eight years were 4.9%, 2.1%, 1.84 % and 0.94 %, respectively.
Sedentary time outcomes are presented with significant differences to show that the effects of sedentary time differ by outcome. Comparing AF and MI, the there was no significant fluctuation regarding the risk throughout the years.
For HF and CV mortality, while the level of sedentary time that prevented risk increase was not quantifiable, there was relatively little increase in risk up to nearly 11 hours a day of sitting, indicating a “threshold” at which sitting time becomes hazardous to health.
Cross-sectional study findings of the post-intervention showed that sedentary behavior was effective in eradicating AF and MI risk among the study participants who fulfilled the 150 minutes of moderate-to-vigorous physical activity and above but was still dominant in the higher risk of HF and CV mortality.
“Next generation guidelines and public health communication should focus on reducing sitting time, said Khurshid. “Avoiding more than 10.6 hours per day which may be a realistic minimal target for the better heart health.