Exercise Intensity Vs. Duration

Exercise Intensity Vs. Duration You've probably heard that High Intensity Interval Training (HIIT) can produce results similar to a much longer period of steady state moderate intensity effort. A study published in the Journal of Undergraduate Kinesiology Research compared a half hour of moderate intensity exercise to a pair of 15 minute moderate intensity sessions separated by three and a half hours.

Eight young healthy adults ran on a treadmill at 70% of their maximum capacity for 30-minutes continuously or for two 15 minute sessions separated by 3Ĺ hours of rest. Researchers calculated that the steady state session burned about 12.1 calories per minute while the split session only burned 11.3 calories per minute. That's a difference of 20.6 calories over the cumulative half hour of exercise.

True Strength Moment: This study suggests that elevating your effort with an HIIT style of training that alternates between 30 seconds of all out effort and a minute of low intensity jogging for a total of 15 minutes might be a better alternative for those days when you're pressed for time. If time isn't a factor, stick around and finish the entire workout before calling it a day. Here's a tip for burning more fat: Lift weights before performing cardio.
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