The feet-elevated side plank on ball is a more advanced version of a traditional bodyweight side plank. The feet are balanced on an exercise ball, providing a balance challenge but also increasing the load placed upon the obliques and shoulder muscles. It is usually performed for timed holds, either one side at a time or alternating sides. If a ball is unavailable, some of the benefits of the movement can be obtained by performing side planks with the feet elevated on a couch, chair, bench, or other stable object.
