The New York Times recently reported on a new study being conducted on the minimum amount of exercise required to maintain or improve fitness.
The researchers involved focused their study on high intensity interval training (HIIT), which is the same type of training that many top level athletes employ in their training. In particular, this study set up a protocol in which volunteers were asked to 10 repetitions of 1 minute of high intensity exercise, followed by 1 minute of recovery. This was to be repeated 2 times per week for a total of 40 minutes of exercise per week.
The results were astonishing. The researchers found that after several weeks of practicing the protocol, the volunteers in the study found significant improvements to health and fitness.
Check out the whole article on the NY Times website.