HIIT is Good for Your Heart

For decades, doctors have been telling their obese & out-of-shape patients that they need to do long, slow & boring cardio workouts if they want to lose weight and get healthy.

Luckily, science is finally catching up to the awesome health-improving aspects of HIIT workouts.

In a study published in the European Journal of Applied Physiology, researchers concluded that a 6 week program of both moderate (10 s work : 20 s rest) and heavy (30 s work : 60 s rest) intensity interval training…

  • Reduced Carotid Arterial Stiffness in both groups
  • Improved Heart Rate Dynamics in both groups
  • Improved VO2 Max in the HEDIT group only
  • Improved Lactate Threshold in both groups




  1. HIIT workouts are good for your heart
  2. This study is only scratching the surface of HIIT research. Besides the limitations of such a small study, the conclusions probably raise more questions than they answer – but since that’s the nature of good science, I am cool with that.
  3. The researchers believe that the HEDIT group (30 s work : 60 s rest) saw improvements due to “mitochondrial biogenesis while the MEDIT (10 s work : 20 s rest) duty cycle induced a vascular stimulus, but had little impact on mitochondrial proliferation”.


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