If you want to gain muscle mass and increase your strength, grab a weight and do 2 or 3 sets of 8 to 12 repetitions on each side. If you want to lose weight and improve your stamina, keep the movement fast and weight-free and do 30-second to 1-minute sets .
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Place your right forearm or hand on the floor in front of you and lift your hips off the ground. Keep your hips lifted to form a straight line from the feet to the head. Hold this position for up to 1 minute . Do each side 2 to 3 times.
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