Get fit with LES MILLS GRIT study
In the U.S. alone, 93% of adults do not meet current exercise guidelines, 60% are not regularly active, and 25% are not active at all.
Introduction
The American College of Sports Medicine (ACSM) recommends:
• Moderate intensity exercise for 30 - 60 minutes five days per week
• Vigorous intensity for 20 - 60 minutes at least three days per week, or a combination of both
Unfortunately, the guidelines are not clear and there is an obvious gap in the current literature with respect to how time spent in high-intensity training may reduce disease.
The Question
Can the high-intensity interval training of LES MILLS GRIT™ cause a change in fit adults?
Method
Group FIT: continued with five hours of exercise including:
• 3 x 60-minute cardio workouts
• 2 x 60-minute BODYPUMP™ classes
Group HIIT: continued with five hours of exercise substituting one hour of cardio with two HIIT sessions (LES MILLS GRIT). Their program included:
• 2 x 30-minute LES MILLS GRIT workouts
• 2 x 60-minute cardio workouts
• 2 x 60-minute BODYPUMP classes
Results
The group that performed the two HIIT classes had significantly better results than the FIT group in many of the variables that were tested:
• Triglycerides decreased by 14.5%
• VO2 increased by 6.4%
• Body fat decreased by 2.1%
• Leg strength increased by 15.7%
Conclusion
As the results indicate above, adding two LES MILLS GRIT classes significantly helps boost a person’s fitness and reduces cardiovascular risk.
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