A training style that alternates short bursts of hard effort with brief rest periods. It is popular for helping improve cardio fitness in less time and is studied for its potential effects on insulin sensitivity.
One weekly 75-minute interval workout led to about as much fat loss as three weekly sessions over 16 weeks.
Popular Science reported on a Hong Kong study of 315 adults. They were overweight or carried extra fat around their waist. Research
Yes—10 minutes of hard effort within a 20-minute session, two to three times weekly, can improve fitness, according to UNC’s report.
The article covers Abbie Smith-Ryan’s research at UNC-Chapel Hill. Her team studied [High-Intensity Interv