Primal Shred Muscle Russian Twist: Lie for your again on a declined bench. Position your body so that your torso and thighs are perpendicular to each different. Then circulate in a semi-circular movement from left to right. This is one of the maximum difficult physical games in the great ab workout for guys, as there may be no 'relaxation role'. Do this motion for 60 seconds. So, those were some hardcore ab workouts for men....
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