Hi Erik,
I'm also doing my case study focusing on children, however, I'm looking at children with recurrent abdominal pain. There's usually not an organic etiology for the pain, and they have found that there is a large psychological component. While yoga has not been shown to be effective for these children, they did find that meditation, hypnotherapy and biofeedback show promising results to reduce frequency and severity of the abdominal pain. I personally feel like these interventions that a child does to help them focus on their personal health and wellness will have benefit whether it's 'proven' or not, including meditation and yoga. With all of these interventions, there is little to no risk for the patient, so if they were interested, I would recommend it.
Thanks for your thoughts,
Patti