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Osteocytes are like Psychiatrists
Form as well as Content
Articular Cartilage
• Forms from within
• No nourishing perichondrium at interface
• Undergoes considerable stress
Moving Picture
Proteoglycan
Protein
Glycosaminoglycans
H2O
H2O
H2O
H2O H2O H2O
Both Ends against the Middle
• Argument for Impact:
Impact Mechanoreceptor DNA RNA Protein Matrix
• Argument against Impact: • Trauma Chemokines PGE2 Joint Destruction
Masuko-Hongo K, Sato T, Nishioka K. “Chemokines differentially induce matrix metalloproteinase-3 and prostaglandin E2 in human articular chondrocytes.”Clin Exp Rheumatol. 2005 Jan-Feb;23(1):57-62.
Both Ends Against the Middle
• Yoga leverages stress on long bones
• Chondral surfaces are smoothly indented
Consider Parsvakonasana
Stretches Stretches anterior hip anterior hip capsulecapsule
Lateral stress Lateral stress on distal and on distal and proximal femurproximal femur
Yoga bends bones, doesn’t dent cartilage
• Lateral stress will strengthen against exactly the weakness causing fracture
• Cartilage will be irrigated, not irritated.
Twisted Triangle
Twisting Twisting pressure on pressure on lumbar spinelumbar spine
Stretches Stretches posterior hip posterior hip capsulecapsule
The Right Yoga
• Mechanostimulation- Bone
• Range of motion - Joint
• Metabolism– Bone:
Canalicular flow
– Cartilage:Nutrition
Detritus
Matsyendrasana
ROM at posterior hip joint capsule
Lateral force on femur and knee joint
Fair and Balanced View
• No Impact
• Plenty of deformation
• Just where the bone is most at risk
• Definite improvement of ROM
• Better synovial circulation
• Possible remolding of B and J architecture
Ancient Saying
• Meds: at first like heavenAfter a while like poison
• Yoga: at first like poisonAfter a while like heaven.
Study
Yoga for Osteoporosis and Osteoarthritis
– Annual dexa scan– We teach the yoga - subjects do it at home– Meds no problem
www.sciatica.orgwww.sciatica.org
Interested?
Home study:– Annual dexa scan.– We teach yoga - subjects do it at home.– Meds no problem.
www.sciatica.orgwww.sciatica.org
Home Alone
Home Alone
Curb your Enthusiasm
“There is nothing that dooms a good idea to lack of acceptance faster than overambitious claims by its
protagonists.”
L.E. Lanyon, 1989L.E. Lanyon, 1989