No time? No problem. Science says you can get fit just by slipping in tiny exercise “snacks.”
— Read on www.eatingwell.com/article/7914117/health-benefits-micro-workouts-plus-how-to-do-it/
One study had inactive young adults do 20-second bike “sprint snacks” in which they pedaled as fast as they could. Participants repeated these mini workouts three times a day, each separated by one to four hours of rest. After six weeks, their cardiorespiratory fitness improved by 9%—similar to the 13% increase a second group got by doing the same sprints within longer 10-minute cycling sessions. Other research published in Medicine & Science in Sports & Exercise found that sedentary but healthy women improved their cardiorespiratory fitness by doing just 20 seconds of vigorous stair climbing three times a day for three weeks. “The precise reasons why exercise snacks work has yet to be determined, but they may improve the heart’s pumping capacity and ability to transport oxygen throughout the body,” says Gibala. They also appear to improve markers of insulin sensitivity and lower triglycerides.