26 Life Is An Interval Training Workout

Our guest here in Episode 26 is Dr. Martin Gibala, the author of the book, The One-Minute Workout, Science Shows a Way to Get Fit, Smarter, Faster, Shorter. Martin Gibala, Ph.D., is also a professor and chair of the kinesiology department at McMaster University in Hamilton, Ontario. His research on the physiological and health benefits of high-intensity interval training has attracted immense scientific attention and worldwide media coverage.  Dr. Gibala and Adam Zickerman compare and contrast the high-intensity interval training as Dr. Giballa explains in his book with high-intensity strength training performed at all 7 InForm Fitness locations across the US.For The One-Minute Workout audio book in Audible click here:  http://bit.ly/OneMinuteWorkoutTo purchase The One-Minute Workout in Amazon click here: http://bit.ly/IFF_TheOneMinuteWorkoutDon’t forget Adam's Zickerman’s book, Power of 10: The Once-a-Week Slow Motion Fitness Revolution.  You can buy it from Amazon by clicking here: http://bit.ly/ThePowerofTenTo find an Inform Fitness location nearest you to give this workout a try, please visit www.InformFitness.com.  At the time of this recording, we have locations in Manhattan, Port Washington, Denville, Burbank, Boulder, Leesburg and RestenIf you'd like to ask Adam, Mike or Sheila a question or have a comment regarding the Power of 10. Send us an email or record a voice memo on your phone and send it to [email protected]. Join Inform Nation and call the show with a comment or question.  The number is 888-983-5020, Ext. 3. The transcription for the entire episode is below:26 Life is an Interval Training WorkoutInForm Fitness - The One Minute WorkoutAdam: Dr. Gibala, you have this book with an eye-raising title called the One Minute Workout, and the argument, if I may,  is this. That what you’re saying is the benefits we gain from traditional two and a half hours of recommended a week exercise with moderately intense exercise, also known as steady state exercise, can also be obtained with just one minute of extremely intense exercise. Now for many this sounds too good to be true, and I’ll allow you to explain how these exercise benefits can be obtained in just one minute. Now before you do that, maybe we should start with what are the benefits of exercise that we’re looking for?Dr. Gibala: We’re mainly interested in three primary outcomes, one being cardiorespiratory fitness so, of course, that’s the cardio health that everybody normally thinks about. The ability of the heart, lungs,  blood vessels to deliver oxygen to muscle. We know that’s a really important measure for athletes, but it’s equally important for health. We also look at skeletal muscle health, so we’ll take biopsies and look at the capacities of muscles to use the oxygen to produce energy, so we like to think of that as a measure of muscle health, and we’ll also measure health-related parameters like insulin sensitivity, as well as things like blood pressure. So we’re looking at a range of physiological markers that translate into improved health outcomes, and we know that any type of exercise is beneficial for all of those parameters. We’re of course interested in time efficient versions to produce those benefits.Adam: Exactly. So speaking of those time efficient ways, you have termed it high-intensity interval training and would you agree with that? That’s the official term for the protocol?Dr. Gibala: Absolutely. Why I just raised my eyebrows a little bit, it’s been around of course since the turn of the century so high-intensity interval training is rediscovered every decade or so and that was my only reason for doing that.Adam: Got you, you’re right. So how can these benefits be obtained in one minute, using the sensory old protocol?Dr. Gibala: So where the title of the book comes from is work in our lab where we’ve had people do as little as three twenty second hard bursts of exercise, so that’s the quote unquote, one-minute workout. Now typically that’s set within a timeframe of about ten minutes, so you have a little bit of warmups, cool downs, and recovery in between, but as you alluded to in your intro, we’ve shown that that type of training program so one minute of workout done three times a week can confer at least over several months, many of the benefits that we associate with the more traditional approach to fitness. So in our recent study where we directly compared that type of protocol to the hundred and fifty minutes a week of moderate-intensity training, the improvement in cardiorespiratory fitness was the same over three months of training. The improvement in markers of muscle health was the same, and the improvement of insulin sensitivity was the same as well. So in our lab when we made these head to head comparisons, we have some pretty compelling evidence I think at last over a couple of months, you can reap the benefits that we associate with a more traditional approach with these short, intense workouts.Adam: Let’s talk a little bit more about these intense workouts. I’d like you if you will to take us back to turn of the century, 2004, when you were brainstorming with your grad students. Can you please tell us about that first experiment, and what did those muscle biopsies show? Since your first study, as a follow-up, have the results been repeated in similar studies and with other independent labs as well?Dr. Gibala: Yeah, so I guess our work at the turn of this century was influenced by work from a hundred years prior and part of my interest in this topic was I teach a course in the integrated physiology of human performance, and my students are always interested in the training regimes of elite athletes. They would wonder why do these elite endurance athletes, world champions, Olympic distance medal winners, train using these short, hard sprints. So in short, how can short, hard sprints confer endurance capacity. So that really influenced our thinking, and we wanted to ask the question well how quickly can you get these benefits, and how low can you go? We’ve subsequently gone lower, but at the time, there was a very common test and physiology known as the Wingate test, I’m sure you’re familiar with it. It’s a test that involves thirty seconds of all-out exercise on a cycle odometer, and we knew that Wingate training was effective from some other studies, but we said okay, let’s have people do just six training sessions over a period of two weeks. So we argued back and forth about the number of Wingates, and how long we would have the training program last, but we settled on this very simple design; a two-week study with six sessions of interval training over the two weeks, and our primary outcomes were endurance capacity, so basically how long subjects could ride a bike until they fatigued, and muscle biopsies to look at those measures of muscle health. Lo and behold after just two weeks of training, we found a doubling of endurance capacity in the recreationally trained students, and so it was a very dramatic illustration of the potency of these short, hard workouts, to confer endurances like benefits. Since then, we’ve continued to push the envelope I guess in terms of how low can you go, and our work has extended out to less healthy individuals, so we’ve done work on people with type two diabetes, and of...