'Get ready for some cardio and core work. In this Body Shock workout each circuit has 3 exercises. Do 20 seconds of each exercise followed by a 20 second rest. Do 4 rounds and then move on to the next circuit.   Coach Keith explains the workout.  Circuits: 6 Rounds: 4 Time: 20/20/20/rest  Like, comment, share.  Subscribe for more workouts.   Follow us IG @obstacourse_fitness Facebook ObstaCourse Fitness Twitter obstacourse_RWC Snapchat obstacourse_fit  www.obstacourse.com' 

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