FEATURE ARTICLE
increases, nor does it indicate cause and effect with increasing the effectiveness of training transference to sport. These devices likely serve an effective purpose for the untrained population and in particular for those rehabilitating from an injury (4). However, with elite athletes, these devices may not be of major utility to develop athletic performance as previous research has documented that training using unstable surfaces can reduce the ability to produce force and power output (1,3,6). Most core exercises are synonymous with movements at the torso. However, considering that in athletic settings the torso is often in a stabilizing role (i.e., preventing motion), and that athletes often have minor but regular bouts of non-specific low back discomfort, there exists the need to have exercises that spare the spine. In this context, exercises that spare the spine do not involve repeated flexion, extension, lateral flexion, or rotation, but are still present, difficult, and useful challenges for stabilization of the torso around the limbs. For instance, “stir the pot,” lying resistance band pullovers, variations of upper limb movement such as the Pallof press, or asymmetrical carry challenges, involve stabilization of the torso to a large degree, without any means of flexion, extension, or rotation movement. Therefore, at times, exercise programs may need to aim to minimize spinal shear and compression load and realize that athletes can potentially benef ?????????????????????????????????????????????????????????????????????????????????????????Q?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????%????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????!????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????%?????????????????????????????????????????????????????????????????????????????????????????????????????????????5?????????????????????????????????????????????????????????????????????????????????X??????????????????????????????????????????????I???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????Q?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????()1=\?
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