Now I've been quite inspired of the Primal Blueprint lately and by listening to their podcast I was curious to try really high intensity sprints after my workout. So I did. And then I did it after every upper body workout session this week. And I must say that wow, sir Gym - why didn't you show me this side of yourself earlier??? So what I've been doing is just 15 min sessions of 45 sec - 1 min of running at the top speed of what I have previously been capable of, followed by 1 min walking.
Why I love it you ask? Because it is over quickly so it is easier for me to push myself into both starting and continuing for the remaining time; because it releases all the happy hormones that I love from cardio exercise without being as torturous; because it is not as tough as aerobic exercise so I can do it after my strength programs which I have never managed before (I suppose - not really surprisingly - that anaerobic exercise is my thing), because I notice results after only one week of doing this!
Mark Sisson wrote an excellent post about this a while back, describing the benefits you get from sprinting. I am really looking forward to keep up these intervals and see how it will affect me in the longer run. What I can notice after only a week is: more energy and feeling a lot better mentally, starting to actually recognize my hunger signals which I haven't felt for a long time, increased speed (I suppose it is the same as when you start lifting - rapid progress in the beginning) and better focus. I mostly feel more stable mentally. I don't know if I can put all credit for that into the sprints of course, since my food intake has been really good the past week as well, I have managed to stick to my exercise routine and I have had a humane amount of things to do at uni (meaning: no stress). Although I definitely believe that the new addition of short HIIT sessions have strongly contributed to my new well being that has been absent for quite some time.
|A pretty exhausted Sofia just off the treadmill. Sweaty and very satisfied with herself! And the eyes were a lot more energetic after some recovery ;)|