Get Fit to Your Own Beat, with BeatFit for Apple Watch!

Heart Rate Training
Exercise that results in cyclic bursts of elevated heart rate, followed by recovery, improve cardiopulmonary fitness more that sustained cardio.
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BeatFit contains two workouts that provide for this form of training:
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-Sawtooth, which cycles between Peak and Base heart rate
-Plateau, which allows for setting Peak heart rate for a defined time
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For optimum results, the peak heart rate should be set between 80-95% of maximum with 7 or more repetitions. Time at Peak rate (Plateau workout) should be capped at or below 4 minutes.
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The transition from controlled breathing to panting correlates well with the rise in heart rate to the 80-95% zone of effectiveness.
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The time to recover between cycles will shorten as cardiopulmonary fitness is improved.
Resources
Aerobic high-intensity intervals improve VO2max more than moderate training
https://www.ncbi.nlm.nih.gov/pubmed/17414804/
The Type of Exercise That Helps You Live Longer
http://time.com/4750262/high-intensity-interval-training-longevity/
HIIT vs Continuous Endurance Training: Battle of the Aerobic Titans
https://www.unm.edu/~lkravitz/Article%20folder/HIITvsCardio.html
Exercise Intensity and Energy Expenditure of a Tabata Workout
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3772611/
How exercise, interval training in particular, helps your mitochondria stave off old age
https://www.sciencedaily.com/releases/2017/03/170307155214.htm
American College of Sports Medicine Information on HIIT
https://www.acsm.org/docs/brochures/high-intensity-interval-training.pdf
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Aerobic Fitness Test: The Step Method
https://www.health.harvard.edu/staying-healthy/aerobic-fitness-test-the-step-method
