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Punishing rounds of kettlebell swings start and end this circuit.
Can you beat our expert's time of 11 minutes?
Carve 30 minutes out of your day to blast your biceps, legs, and abs.
Put your fitness to the test with a category 1, 2, 3, 4, or 5.
There's burning fat, and then there's conditioning.
This routine starts out hard—and ends even harder.
Combine high-intensity cardio with intervals of pushups.
Burn fat off your entire core with 13-move abs circuit.