According to the manufacturer, the BOSU® Ballast® Ball is constructed of burst-resistance material with a six-sided design for proper alignment and positioning. It is filled with 2.5 lbs of MDL (Multi-Dimensional Load) material which is intended to add resistance and keep the ball from wandering during a workout. Available in translucent light blue and includes a foot pump and workout DVD.
Materials: Burst-resistant, six-sided outer; White MDL material fill inner; 55cm – 65cm Circumference (inflated); Weight: 5.5 lbs
ACE Expert Review
The BOSU Ballast Ball is a modified stability ball made of high-quality, burst-resistant material that includes an internal substance that adds load and movement within the ball. The 2 ½ lb of material inside the ball, called multi-dimensional load, or MDL, adds audible feedback for lifting and shifting exercises and provides stability to the ball when it settles at the bottom. An instructional DVD detailing proper usage and various exercises and an owner’s manual are provided with the purchase of the BOSU Ballast Ball.
What we liked:
- The BOSU Ballast Ball is more versatile than a traditional stability ball because the exerciser can perform a larger variety of exercises due to the added load and the stability of the ball as it rests on the floor.
- The weighted material inside the ball adds a multidimensional load that can be moved slowly for muscular conditioning or quickly for core muscle activation.
- The BOSU Ballast Ball stays in place once it is set on the floor. This is an advantage when an exercise movement calls for leaving the ball and then returning to it, such as when a person stands up from sitting on the ball and then returns to sitting on the ball (squats).
- The owner’s manual and instructional DVD that accompany the BOSU Ballast Ball is produced well, offers a variety of exercise options, and is easy to follow.
What we didn't like:
- The BOSU Ballast Ball is a bit pricey compared to a traditional stability ball.
- The stability provided by the BOSU Ballast Ball requires less core muscle activation compared to that required when using a traditional stability ball for simple exercises like sitting or lying on the ball. Thus, those who are used to using a traditional stability ball should continue to use the traditional ball for certain exercises. The BOSU Ballast Ball is a good supplement to an existing core-training program, but should not be the sole piece of core-training equipment.
- The BOSU Ballast Ball is offered in only one size, which could be problematic for exercisers who are taller than 6 feet.
October 9, 2009
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