I recently discovered a phenomenon that is sweeping the nation, and I think it really works for me! It’s called High Intensity Interval Training (HIIT) and I’ve added it into my rotation of cardio workouts this week.
The idea of it is that three times a week or so, I do workouts that push my capacity with short repeating circuits of intense cardio work followed by a period of recovery time.
The way I executed this on Monday was I jogged for 5 minutes at a light pace, to get warmed up. Then I ran as hard and fast as I physically could, until I was on the verge of asthma attack and/or no longer maintaining that level of exertion, but only for about 30 seconds. Then I jogged an extremely light recovery for 90 seconds (in reality, the recovery started with walking, because that was all I could muster for a few seconds after all-out exertion.)
Rinse, repeat. I managed 4 reps total before I had to take it down to a light jog and then cool down. I got a total of 20 minute workout, which my heart rate monitor reported to me thusly:
Max HR: 181 (95% of “max heart rate”)
Avg. HR: 141
Calories burned: 178
That’s not as many calories as I’d have burned if I’d been jogging the whole time. However, according to HIIT science, the short bursts of crazy intense activity throw my body into a tizzy burning fat in an attempt to recover, and the elevated metabolism last as long as 24 hours. (My resting heart rate did not return to 58 as it usually does in the hour after a workout; this time it got back down to about 62 or 63, and I retained the hot feeling long after I’d showered and gone to bed.
I’m no scientist, and I realize I’m not writing especially empirically on this matter. So if you want more clinical or experienced information about this, google “high intensity interval training,” or look at the following links:
www.hiitsource.com - a pleasant read about HIIT
http://musclemedia.com/training/hiit.asp - a little body-building centric, but this site offers a plan that starts with a 4-min a day workout. Awesome!
http://www.exrx.net/FatLoss/HIITvsET.html - if you like science and clinical studies, this is the page for you.
So here’s my current fitness “plan” such as it were:
Monday: high intensity intervals run, possibly followed by a pilates or yoga session or a low intensity workout (I just enjoy the feeling of an extended workout!)
Tuesday: extended endurance run
Wednesday: other HIIT activity (tonight I’m going to try jumping rope.) followed by a strength training session
Thursday: whatever I feel like, or day off
Friday: HIIT of some sort.
Saturday and Sundays I like to do extended runs on these days just because time is so much more plentiful. I always always squeeze in a second fitness activity on each day of the weekend, sometimes even a third.
I’ve already noticed a difference in the way my arms look - less fatty. I imagine after a few weeks of this, I may just look awesome (trying to keep my expectations reasonable, k?)
A few notes to self (and readers!) here: I think the time of gauging fitness level by the numbers on the scale is coming to an end. As I burn fat, I am also building muscle, and these are likely to be at odds with, if not negate altogether, each other. I’m writing this because putting it out there in the world and in my own public thoughts means that I must acknowledge that this has crossed my mind.
Second, I must resist the urge to think “Suckahzzzzz” every time I see people busting out two hours of cardio drudgery in the name of weight loss***. I feel like I have been let in on a huge, fortunate secret, even if it’s one that many people have known for a very long time, according to the internets. Nothing I’ve ever done had burned fat off my body in two days the way HIIT has already done. Plus, it’s improving my base speed and endurance. I did a standard endurance run yesterday and it was much, much easier than before I’d done the high intensity workout. I don’t know if it’s that my body responds to training exceptionally quickly or if it’s just that my expectations have shifted. I just thought that an hour long run would have been much harder than it wound up to be. I found it easy to run through my fatigue because it just wasn’t as hard work as the high intensity intervals had been.
I’m so excited that my coworker Jeremy mentioned this to me; I’d been complaining that my running improved too quickly and I wasn’t getting the same challenging workout on similar routes as I had been a week or two ago. He mentioned this as a way to change up my routine and shake off the plateau. I will certainly report back with more info as I have it (possibly even some pictures!)
***I know that time spent exercising is better than not doing it at all, and I can hardly knock anyone for putting in the effort. But why waste one’s time when such a short workout even only once a week can make such a huge difference?