The researchers in the review of Yoga studies point out that due to pain, many arthritis patients reduce their activity levels. They state that this can lead to muscle or tendon shortening, and other effects which makes arthritis worse. As with any exercise, it was recommended that you discuss Yoga or other practices with your doctor, and investigate many styles, or consider Tai Chi. Dosage (frequency and duration of practice) were also noted as in need of further study. The authors stated that better clarification is needed related to style and methods of practice, since Yoga can describe a wide range of practices. The authors did note that most studies described a comprehensive practice (poses, breathing, relaxation and/or meditation), although the styles, doses and format differed. Some concern was expressed in that the style of Yoga used needs to be age appropriate (particularly for older adults. This is one benefit of Tai Chi, in that it has been identified as a uniformly beneficial exercises for older adults, unless focusing on the martial aspects).
One final note, which is particularly relevant to Metarobic theory and research, is that the researchers stated there is a significant need to study the mechanisms by which Yoga benefits arthritis (which is also a shortcoming in Qigong and Tai Chi research). Metarobic theory does this, related to measureable and testable effects on enhanced blood oxygen saturation, diffusion, and oxygen based metabolism. The Metarobic effect optimizes the body’s ability to deal with a wide range of chronic conditions, particularly those in which hypoxia (oxygen deficiency reaching the tissues) plays a role. As noted in the research presented in my last two posts, as with other chronic conditions, hypoxia has been identified as a major factor in arthritis. The Metarobic effect may also enhance lymphatic and autonomic nervous system functions, which may play a role as well.
References
Gryffin, PA. Tai Chi Therapy: The Science of Metarobics. Createspace, 2015.
Haaz S, Bartlett SJ. Yoga for Arthritis: A Scoping Review. Rheum Dis Clin North Am. 2011 February ; 37(1): 33–46. doi:10.1016/j.rdc.2010.11.001