Interval Training

Interval training is a type of discontinuous physical training that involves a series of low- to high-intensity Exercise workouts interspersed with rest or relief periods.[1] The High Intensity (HIIT) periods are typically at or close to Anaerobic Exercise, while the recovery periods involve activity of lower intensity... Interval training can refer to the organization of any Cardiovascular workout (e.g., cycling, running, rowing). It is prominent in training routines for many sports, but is particularly employed by runners. aka WindSprints, WalkBackSprinting

Here's the NerdFitness version - 5min Warm Up, then stretch, then 6 cycles of 30sec high-pace, 2min low-pace, then cool-down.

Apr'2021: Mark Joyner notes "Tabata", named after "Japanese researcher Izumi Tabata, PhD" - 20sec highest-intensity, 10sec rest. Repeat for 4min? MarkJ says 12min. How about 7-Minute Workout?

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