Hi!
Just wanted to give you a few more options for the ball, if you get one...
I finally broke down (after 5 months at my gym!) to ask a trainer there what I could do to try to work on my buddah-baby belly.
He has me doing the following so far (all including the stability ball--which he says truly helps to strengthen your core by balancing. I have to say---it is definately more challenging than using a regular bench or floor!)
#1: While holding 10lbs
weight in each hand , do lunges going upstairs (there are 14 steps on my gym staircase, so I take seven steps to the top)
Repeat 3 times.
#2: Placing ball behind your midback against the wall, hold same weights and roll down to a squat position.
Do 10-12 reps.
Do three-four sets of the above combination.
---------------------------------------------
NEXT!
#3: Place ball on floor. Sit on ball with weights in hands. Scoot down until your upper back is on ball and your body is paralell to the floor. Do butterflys 10-12 reps.
#4: In same position, do chest presses. 10-12 reps.
#5: Roll up to sitting position. Do bicep curls. 10-12 reps.
Do three sets of the above.
--------------------------------------------
The ****, as I lovingly call my trainer
, also has me do 10 minutes of HITT training. That is, on the stationary bike, set at a mid level (like 4), do 15 seconds, then increase level to 7 and pedal as hard as you can for 30 seconds. Alternate, 15 secs easy, 30 secs hard, for 10 minutes. Drink water during your 15 sec breaks.
--------------------------------------------
I sweat like a pig through this entire workout!!!! Just wanted to let you know that the ball does help, and to give you some ideas other than sitting on it at your desk. Which by the way is pretty clever I think. You might end up with a sore back though, depending on how long you sit there!!
Good luck! Hope this was helpful!