I have lived this lifestyle, my way (and I believe we all have to find our way), for over 3 years. I also am limited by the fact that I have cerebral palsy.. Because of the dismissive tone that can be prevalent here I offer my neurological/MRI findings:
MRI--" Moderately severe central volume lose of the right hemisphere mid posteriorly,predominately parietal lobe as described. These findings are compatible with chronic, most likely congenital volume loss."
Motor exam/ findings by neurologist--" The patient has noticeable disproportionate size of her left arm compared to her right in that it is smaller looking as if it belongs on a teenager or prepubescent person. There are obvious contractures at the wrist and it is held in a flexed spastic paretic position while walking. The left side shows especially distal upper extremity weakness and in the lower extremity shows mild weakness especially with a foot drop on the left feet. Gait shows a moderately spastic hemiparectic left gait with foot foot drop. Tandem walk could not be done.."
What this says in my real terms is this-- my strength/ ability on my left side, especially in areas farther away from by brain, is severely compromised. I can not, bilaterally, lift ever increasing heavy things. And I will not lift heavier on my good/right side because it would lead to an obvious difference between my left and right sides.
So, my point is this, you can find success by adopting a primal lifestyle that works for you. I am healthier, in the aftermath of applying the primal principals to my best abilities, than I was before I embarked on my journey.
Finally, for all the able-bodied, self-righteous, lifting heavy is the only way, perspectives that seem to permeate this forum I offer the following: You never know the specific circumstances of the people trying to find their way in this lifestyle and on this forum. It would be helpful if your approach was more coached in global possibilities, rather than myopic viewpoints.
We could all benefit from asking for specifics before a global response, that may not be appropriate, is given. I know I would like to learn about possible ways that could improve my abilities.