The stable spine – get the curve right
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The document discusses ideal spinal alignment and common spinal deviations. The ideal spine has straight alignment from the side and front views, with natural curves in the cervical, thoracic, and lumbar regions. Common deviations include flat backs with an extended lumbar spine and sway backs with a flattened lumbar spine and tilted pelvis. Hunchbacks have an extended lumbar spine and flexed thoracic spine, while soldiers have an extended lumbar spine and backwards leaning thoracic spine. Maintaining proper spinal alignment requires balanced muscle strength and flexibility throughout the back and hips.
The stable spine – get the curve right
- 1. RESEARCH Mark McKean PhD THE STABLE SPINE GET THE CURVE RIGHT RESEARCH
- 2. WHAT YOU WILL LEARN The Ideal Spine (Perfection) Flat backs and Sway backs Hunchbacks and Soldiers Double chins and turtle necks
- 4. SIDEWAYS Curve to front Curve to back Curve to front Tilted forward
- 5. FRONT ON – REAR VIEW All bones lined up top to bottom No side curves or leans
- 6. LUMBAR Big heavy bones to support weight Larger transverse processes for muscle attachment to give supportattachment to give support Most strain Links top to bottom
- 7. THORACIC Support ribs Curve backwards for lung expansion Deeper spinous processes for erector spinae attachements
- 8. CERVICAL Broader body Smaller processes More rotation required Supports head on top
- 9. FLAT BACKS AND SWAY BACKSFLAT BACKS AND SWAY BACKS
- 10. FLAT BACKS Head forward Neck extended Thoracic spineThoracic spine flexed forward Lumbar spine straighter Pelvis tilted back Hip joints extended
- 13. SWAY BACK Lumbar spine flatter Pelvis tilted backPelvis tilted back Hip joint extended Pelvis forward of central line Knee joints extended No bottom
- 14. WEAKNESS Neck flexors Upper back extensors External oblique 1 joint hip flexors
- 16. HUNCH BACKS & SOLDIERSHUNCH BACKS & SOLDIERS
- 17. HUNCH BACKS Head forward Neck extended Thoracic spineThoracic spine flexed Lumbar spine extended Pelvis tilted forward Hip joints flexed
- 18. WEAKNESS Neck flexors Upper back extensors External obliques Hamstrings
- 19. TIGHTNESS Neck extensors Low back * Hip flexors
- 20. SOLDIERS Thoracic spine leans backwards Lumbar spineLumbar spine extended Pelvic titled forwards
- 22. TIGHTNESS Low back muscles Hip flexors
- 23. DOUBLE CHINS AND TURTLE NECKS (CERVICAL CURVE)(CERVICAL CURVE)
- 24. DOUBLE CHINS
- 25. TURTLE NECKS
- 26. MARK MCKEAN PHDMARK MCKEAN PHD Post Doctoral Research Fellow Australian Institute of Fitness Research University of Sunshine Coast mmckean@usc.edu.au