It also adds to existing evidence that can inform upcoming physical activity guidelines over time. "We used devices to better measure not only higher intensity physical activities, but also lower intensity activities and sedentary behavior, which has become of great interest in the last few years," stated I-Min Lee, MBBS, ScD.g. For context, non-smokers have about a 50 percent reduction, compared with smokers," stated I-Min Lee, MBBS, ScD, associate epidemiologist at Brigham and Womens Hospital, and first author of the study."This is one of the first studies to investigate physical activity, and a clinical outcome, using the newer generation triaxial wearable devices which have increased sensitivity to recognize physical activity and are capable of more precise measurements than the previously used uniaxial devices, or studies relying on self-reports only.Washington: A study states that more physical activity and higher intensities of exercise could decrease the risk of death in older women from any cause.The study, led by investigators at Brigham and Womens Hospital, investigated physical activity of women measured over seven China Portable Bluetooth Audio lamp manufacturer days using a wearable device called a triaxial accelerometer. However, previous studies have primarily relied on self-reported physical activity, and self-reports tend to be imprecise."The fact the physical activity lowers mortality rate is nothing new - we have many studies showing this. Light physical activity, such as slow walking, was not associated with lower death rate during the study.Moderate to vigorous intensity physical activity (e. Based on these self-report studies, we know that physical activity is associated with a 20-30 percent reduction in mortality rates, comparing the most with the least active. Current guidelines recommend at least 150 minutes a week of moderate intensity physical activity, or 75 minutes a week of vigorous-intensity aerobic physical activity (or a combination of the two), and muscle-strengthening exercises two or more days a week."This study supports current guidelines for physical activity, such as those from the federal government and the American Heart Association, that emphasize moderate-intensity physical activity. Using device-measured physical activity in the present study, we observed a 60- 70 percent risk reduction larger than previously estimated from self-report studies..Data were analyzed from 16,741 participants (average age 72) from the Womens Health Study who wore the device for at least 10 hours a day, on at least four out of seven days. brisk walking) was associated with 60-70 percent lower risk of death at the end of the four-year study among the most active women, compared to the least active.Lack of exercise or physical activity is estimated to cause as many deaths each year as smoking. Researchers note that light activity may be beneficial for other health outcomes not reported in this paper.The findings have been published in Circulation