Core Stability in Athletes: A Critical Analysis of Current Guidelines
* There is no evidence that classical strength-training exercises, for example, squat, deadlift, snatch, and clean and jerk, affect ‘global’ muscles only or lead to imbalances between the muscles of the trunk.
*The spine is secured by a direction-specific and synergistic interaction of ‘global’ and ‘local’ muscles
* A low activation level in some tasks does not mean this particular muscle plays a minor role; it shows only that, in the specific situation in which these measurements have been collected, fewer motor units were activated.
* Only in a combined axial compression, torsion, and ventral flexion, only half of the mechanical stability of intervertebral segments is available.
* No study has shown a superiority of exercising on unstable surfaces compared with stable surfaces.