Video Thumbnail: BEST PLANK WORKOUT FOR SMALLER WAIST, FLAT ABS & FULL BODY FAT BURN! 10 Variations Video Thumbnail: BEST PLANK WORKOUT FOR SMALLER WAIST, FLAT ABS & FULL BODY FAT BURN! 10 Variations Related Posts:Video Thumbnail: RKC Plank | Plank ExerciseVideo Thumbnail: Plank with Glute Squeeze Total Body Isometric WorkoutVideo Thumbnail: How to Do a Mountain Climber Plank | Abs WorkoutVideo Thumbnail: Hardstyle Plank
