Exercise Lab Course Content BillyStix Lunge BillyStix Hamstring Stretch Ready BillyStix Forward Lunge billystix birddog billystix birddog ready Balance Side Leg Raise Balance Side Kick Balance Combo Kick Bill Shuttic2023-01-20T12:45:07+00:00 Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInPinterest