Believe it or not, doing a shorter, but higher intensity workout can generate greater fitness than longer, less intense workouts. To support this, one study put this comparison to the test and found that quicker, high intensity workouts improved both aerobic and anaerobic capacities, while longer, less intense workouts only improved the aerobic capacity. Simply put, your muscles will be able to do a lot more with or without oxygen in your body to help them when you opt for quicker, more intense workouts.
All in all, it can clearly be seen that quicker, but more intense workouts have plenty of benefits over longer, less intense workouts. Moreover, these types of workouts have little to no cost attached to them. This means there’s almost nothing to stop you from taking part in an active lifestyle to better your health, not even time itself.