boxing timer 12 rounds - cardio workout for fitness and weight loss

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30 second interval timer with 3 minute rounds. Use it either with a punchbag or for shadow boxing. Start with regular speed jabs and punches followed by jogging on the spot while throwing light punches (ride the bike) then finish with heavy hits/hooks/uppercuts etc. Repeat all 3 again, then rest. Build up your rounds weekly or as soon as your body allows. Lose weight fast and build stamina, while getting fit
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