Take a seat and brace yourself for radical results. The transformative results that go hand-in-hand with high-intensity interval training don’t come from sitting on your ass. Or do they?
When it comes to getting the remarkable fitness fueling benefits of high-intensity interval training, a combo of intensive burpees, lunges, squats and the like is no longer the only way to go.
New research by Professor Jinger Gottschall at Penn State University has proved that high-intensity interval cycling can significantly improve cardiovascular, metabolic and musculoskeletal fitness – making it an effective, low-impact alternative to traditional high-intensity interval training1.
In a six-week long study 36 physically fit adults ticked off at least three 60-minute sessions of cardiovascular exercise a week. Half replaced a single 60-minute cardiovascular training session with two 30-minute high-intensity LES MILLS SPRINT™ indoor cycling sessions on non-consecutive days.
Researchers measured blood pressure, peak oxygen consumption, fasting blood profile, body composition and leg strength at the start of the study and again at six weeks. According to Bryce Hastings, Les Mills Head of Research, the improvements were striking.
Both groups enjoyed better physical fitness across nearly all variables, but the group that did LES MILLS SPRINT really took the results up a notch. “We saw reduced body fat mass, blood pressure, total cholesterol and triglyceride concentration,” says Bryce. “There was also enhanced cardiovascular fitness, lean body mass, glucose tolerance and strength.”
Bryce explains that the effectiveness of LES MILLS SPRINT is born from the high-intensity interval training (HIIT) structure, where periods of exertion over 85 per cent maximum heart rate are followed by periods of recovery or rest – a scientifically-proven HIIT formula that allows you to keep reaching your maximum training zone again and again. Thanks to the HIIT effect you can get up to nine times the fat loss of regular cardio training2 and can burn calories for hours after your workout3.
“We’ve long known that high-intensity exercise can make a significant difference in overall health and fitness in a relatively short amount of time, however because this type of exercise often involves weight-bearing impact, it has not been a viable option for those who suffer foot, knee, and lower back pain,” says Jinger Gottschall, Associate Professor and lead researcher of the study.
These new findings suggest that low-impact interval cycling can achieve similar results to weight-bearing HIIT. “There is less impact with LES MILLS SPRINT than weight-bearing HIIT programs so it may suit those with orthopaedic restrictions,” says Jinger.
High-intensity interval cycling is also ideal if you’re looking to introduce high-intensity to your training. The 30-minute cycling workout allows anyone to push their physical and mental limits in a safe environment. It features bursts of intensity to work you as hard as possible, followed by periods of rest, allowing you to prepare for the next effort.
“There is no complex technique to master and you manage your own resistance,” says Bryce. “It allows you to safely push your body through high-intensity intervals and swiftly amplify your fitness level.”
But that doesn’t mean it’s easy.
“I found it incredibly gruelling,” said study participant, Ann Marie Oldani, “It was harder than any other workout I’ve done. Far more intense than I ever thought it would be,”
“I was thinking I could cheat a little, but the Instructors are right there to push you,” said Nelitza Sarriera. “I just love it!”
Are you up for the challenge? Become a SPRINT Instructor!
1. Petersen, Bailey A., Bryce Hastings, and Jinger S. Gottschall. "High Intensity Interval Cycling Improves Physical Fitness in Trained Adults."Journal of Fitness Research (2016).
2. HIIT is 9 times more effective for fat loss than steady state training. Tremblay A, Simoneau JA, Bouchard C. Impact of exercise intensity on body fatness and skeletal muscle metabolism. Metabolism-Clinical and Experimental. 1994;43(7):814-818.
3. 20 minutes of HIIT leaves you burning fat for 9 hours after the workout. Laforgia J, Withers RT, Gore CJ. Effects of exercise intensity and duration on the excess post-exercise oxygen consumption. Journal of Sports Sciences. 2006;24(12):1247-1264.