Thanks for the summary; found it when I was looking up more info after looking at the other article (https://news.ycombinator.com/item?id=8094119 https://news.y

Thanks for the summary; found it when I was looking up more info after looking at the other article (https://news.ycombinator.com/item?id=8094119 https://news.ycombinator.com/item?id=8094119) Most of the commentary from there probably pertains. One thing I noticed in this study is that (unlike a few other articles where I couldn't find the primary sources), they didn't do a warmup period: "The HIT training protocol was similar to that used previously by Jakeman et al. [20]. 16 sessions of HIT were spread over an eight week period, with one or two days of rest between each sprint. There was no warm-up or cool down in the training sessions. Each training session consisted of 10 repeated 6-s all-out cycling efforts against 7.5% of body weight for males and 6.5% for females (Monark peak bike Model 894E, Monark Exercise AB, Vansbro, Sweden), added to the bike once the participant was cycling at 100 rpm with 1 min of passive recovery between sprints." [emphasis mine]