High intensity interval training for 20 minutes provides greater neuroplasticity

biotech healthcare

Looking for an exercise regime that gives both the heart and brain the best workout? A new study from the University of South Australia may have the answer. It appears the brain derives substantial benefits from both high intensity interval training and longer, continuous bouts of moderate exercise. Cycling or running at full speed without mixing up the tempo may elevate the stress hormone, cortisol, blocking the positive effects. The findings are based on multiple experiments involving 128 people whose brains were monitored after a single bout of aerobic exercise on a stationary bike and treadmill, ranging from low intensity continuous exercise to high intensity interval exercise, with the heart rate varying between 50 to 90 per cent intensity. UniSA researcher Dr Ashleigh Smith and her PhD student Maddison Mellow found that the greatest changes in neuroplasticity – the brain's ability to rewire or modify its neural connections – occurred with 20 minutes of interval training or 25 minutes of continuous moderate aerobic exercise. We already know that engaging in regular aerobic exercise is good for the brain, improving memory, attention and learning. However, we need to understand why it is so beneficial and what the best exercise, intensity and duration is." Dr. Ashleigh Smith, UniSA researcher Related Stories