It is my belief that most ADRs are stronger than the natural anatomy. The real risk is natural anatomy and misplaced ADRs. As for durability, these things seem rugged. As for jujitsu, I know a couple fellow M6ers who roll on mats, both cervical and lumbar. They go hard too.
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Weightlifter since 12 years old, now mid-40's and figuring out this wasn't such a good idea.
Chronic back pain started in 2010 while shrugging weights that a 40 yr. old shouldn't even try.
MRI in 2012 showing L4/L5, L5/S1 herniations and L2/L3 bulge.
L5/S1 taking on new shape, chronic sciatica, etc.
DEXA bone scan performed 5/7/14 showing mild osteopenia.
Surgery performed July 9th, 2014, Dr Clavel, hybrid three level lumbar.
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