'http://mafitness.net  Music by:  Rage Against the Machine Know Your Enemy  Here\'s a few variations of the \"scrunchie\" exercise we saw Ronda Rousey do on TUF.  This is a great exercise to mix things up and have some fun with.   For training in Marlton, NJ check out: http://mafitness.net  Check us out on Facebook:  https://www.facebook.com/mafitness.marlton  http://mafitness.net' 

Tags: fitness , abs , core strength , exercise , Health , crunches , MMA , bjj , Mixed Martial Arts (Martial Art) , Brazilian Jiu-jitsu (Martial Art) , Ronda Rousey (Martial Artist) , Stroopsmma

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