The Russian Twist exercise works your shoulders, abs and obliques with a resistance band.
-Fast Belly Blaster: Russian Twist. Make sure there's plenty of resistance in the band as you lean your torso back 45 degrees. Then rotate from side to side to equal one repetition. Make sure that you turn your entire upper body and not just move your arms. You'll do 12 to 15 repetitions just like this.
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