Swiss ball training is excellent for abdominal training and to build the much-hyped core muscles. What most of the swiss-ball 'expert' fanatics forget, though, is that simply making the core strong does not lead to improved performance in sport or real life. The core is just another part of the kinematic chain, and needs to be trained equal to any other muscle in the body.
Let us take a case of a ball-thowing action in cricket or baseball. Having a strong core is beneficial to improved transfer of force from the legs to the upper torso. But if the person doesnt have a strong shoulder-joint complex(deltiods, SITS group) or strong isometric and eccentric ability in his biceps musce, the powerful force transferred through the core will either be lost in the unconditioned shoulder-joint complex and biceps or might also possibly lead to injury to the unconditioned muscles. The point I'm making is that every muscle in the body needs to be trained for optimum performance. A chain is only as strong as its weakest link.
Going bonkers over swiss-ball training makes it a case of 'too much of a good thing is bad for you'
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