#21

I know a girl, a runner, who listens to true crime podcasts when she’s running because she goes faster due to fear.

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#22

I run with my dog who looks back at me with sympathy at how slow I am. He runs circles around me. It makes me try harder.

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#23

A number of things I had forgotten about have been mentioned such as ‘puke level’ intensity, hip flexor injuries and other injuries. All of these and more could happen without adequate preparation to prepare the body and mind for what is possible and, in addition, keep it all under control while in the process of doing the HIIT training. Injuries could set you back for many months, especially plantar fasciitis. Thanks for the reminders!

In the beginning it was a months-long process to gradually build up to doing what I currently do. In addition, there is the gradual preparation on the day of HIIT Training. For me it’s never the first thing on my list. It’s at least two hours after a meal and it’s generally the peak and final part of my workout. Afterwards, I have no time or energy left. So, for anyone new to this idea take it slow and gradually build up.

#24

The stress response and associated sympathetic nervous drive can help. Nicotine can increase sprint speed acutely.

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#25

I do two 20-second all-out sprints with two minutes rest between, on a stationary bike for VO2 -max, based on Niels Voollard´s research. I was in touch with him a year ago, he is continuing the research and says the results still hold. 20 seconds are needed. The jury is still out whether three sprints may be slightly better but probably two sprints are enough. Effect of number of sprints in a SIT session on change in VO2max: A meta-analysis - the University of Bath’s research portal

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