When high-intensity interval training (HIIT) came along and gained popularity as the best way to burn fat while holding on to muscle, people started becoming disillusioned with their treadmills. Those long speed walks on an incline – which nobody really enjoyed to begin with – suddenly became less appealing. But that doesn’t mean that the treadmill itself as obsolete. On its own, the treadmill is a very effective fat-fighting tool. By applying high-intensity principles to your next treadmill workout, you can increase the amount of fat you’re burning per session – in far less time.
The benefits of short, high-intensity training sessions are all about your post-recovery state. If you’re working harder you’re going to have a slightly elevated heart and metabolic rate, meaning you’re burning more calories over the recovery period as well as when you’re actually training.
But how much of a payoff does HIIT really offer over traditional, steady-state cardio? Some studies have shown that HIIT burns up to nine times more fat than traditional cardiovascular exercise and keeps your metabolism elevated for more than 24 hours afterwards. This means you are going to keep burning calories long after you have finished exercising.