Athlekinetix uses the BOSU for cardio, strength and balance for an outrageously wonderful fitness experience! If you have never tried a cardio class using the BOSU Ball you are missing out on a seriously challenging and fun experience for you heart and body. You can use the BOSU either dome or flat side up for all body positions from standing to sitting, planks to V sits, prone to supine.By taking a cardio class using the BOSU ball you will burn fat and strengthen the stabilizers of the body.