Back to 8 Second Intervals



Rocks in the Grass, originally uploaded by jjvornov.

January 1 and I’m back on the bike. With 26 degree F tempertures and gusty winds, it was an indoor training session.

Just a year ago, I wrote about my first experiments with 8 second intervals. There was a buzz about a publication from Australia showing that very short high intensity interval training was effective training both for improving fitness and weight loss.

What I liked about it was that it was a relatively easy way to get my work levels up to high levels rapidly on the bicycle trainer in a way that was hard work but seemed easier to achieve and maintain.

Interestingly on the bike today I didn’t get up into as high a heart rate zone today as I did a year ago. It felt like a mismatch between aerobic fitness and leg strength. The effort I was able to put at the pedals wasn’t enough of a demand to really push my heart rate up.

Unfortunately it may not be due to improved fitness but rather loss of power from being off the bike for a few months. I think this workout will be become a weekly staple for a while, so I’ll be looking for rapid improvement as I build back muscle strength specificity on the bike.

Author: James Vornov

I'm an MD, PhD Neurologist who left a successful academic career on the Faculty of The Johns Hopkins Medical School to develop new treatments in Biotech and Pharma. I became fascinated with how people actually make decisions based on the science of decision theory and emerging understanding of how the brain works to make decisions. My passion now is this deep explanation of what has been the realm of philosophy, psychology and self help but is now understood as brain function. By understanding our brains, I believe we can become happier, more successful people.

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