Passthepotatoes,
I second the information on the Omega 3 vs. 3-6-9, and the comments about appropriate patterned movements.
Swimming, dance, horseback riding, and martial arts have all been a huge part of my son's formal "in office" (for definitions of "office which include pools and pastures occupied by physical therapists) and home-based OT and PT - his physical therapist primarily used pool and riding-related activities with him. My son used to joke that PT stood for "Pool Therapy" in the summer and "Pasture Therapy" in the winter. My comments about gymnastics and wrestling were more based on the nature of those two particular sports than on any sense that integrating sport or leisure activities that build strength and balance into a rehabilitation program is impossible or undesirable. I think it is probably an essential part of maintaining the gains made in formal therapy and continuing to build on them.