The increased stability created from the Multi-Dimensional Load is called the stabilizing
factor. One of the major advantages of MDL is the nature of the stability it provides.
The stabilizing factor is at its lowest during the initial movements of the ball, when the
MDL material is essentially laying flat. This provides you with a relatively high degree of
challenge that promotes balance, core stability, and coordination. The stabilizing factor
continually increases to its maximum value as the ball rolls out of center and the MDL
begins to tilt & shift inside the ball. From a training standpoint, this is an ideal situation.
You have the benefits of training in an unstable environment with the increased
convenience and utility of stabilizing factor created from the MDL inside the ball.
SERIOUS BODILY INJURY MAY RESULT IF INFLATION AND DEFLATION INSTRUCTIONS ARE NOT
FOLLOWED. EXERCISE BALL MAY BURST, WHICH COULD CAUSE SERIOUS INJURY FROM A FALL.
Inflating Your Pre-Filled Ballast
1. Remove the BOSU
box, separate the ball from all packaging
material and lay the ball out in a flat
position for 2 to 3 hours prior to inflation.
2. Remove the pump from its wrapping.
3. Attach the end of the hose without the tip
onto the black nozzle on the pump. Fig. A.
4. Remove the plug from the Ballast
BE CAREFUL not to let any of the MDL
material escape from the ball. If any material
does accidentally escape, insert it back in the
ball through the valve before inflating.
5. Insert the tip into the ball and inflate your
Ballast
Ball to about 80% of it's fully inflated
®
size. At 80% inflation, the ball should be quite
soft. Allow it to sit overnight or for several hours
at this inflation level before fully inflating it. This
will insure maximum burst resistance qualities
of the Ballast
Ball. Fig. B.
®
6. Be careful not to over-inflate your Ballast
top of the fully inflated 65cm ball should be no higher
than 65 centimeters (about 25 inches) from the floor.
The top of the 45cm ball should be no higher than 45
centimeters (about 18 inches) from the floor.
STABILIZING FACTOR & THE
UNIQUE ADVANTAGES OF MDL
WARNING
GETTING STARTED
Ballast
Ball from the
®
®
Ball.
®
Hose
Fig. A
Ball. The
®
Fig. B
• 9 •
Ball
®
Pump
Tip
Blue
Nozzle
Red
Nozzle