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