Researchers have conducted one of the largest and longest studies to find out if it is possible to reduce sedentary time and if the reduction will result in any health benefits during one year. A tailored counseling helped busy office workers with young children to decrease their sedentary leisure time 21 minutes per day, which was enough to improve some biomarkers and to maintain muscle mass during one year.
https://www.sciencedaily.com/releases/2017/08/170830101415.htm