Fat Burning and Muscle Building Circuit Training
Jason Yun performs a Hurry-Up circuit. Set up your gymboss timer for 3:00 and rest time at either :60, :90 or 2:00 depending on your conditioning level. Pick exercises that are difficult and perform enough reps to finish within 2:30-3:00. Repeat for up to 5 rounds.
Click the banner above to get you Gymboss timer.
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