There is much discussion in the literature regarding the difference between induced vs. structural leg length difference (LLD). Many mechanisms for induced LLD are offered, including ilium up-or down-slip, or movements of the ilia in the anterior--posterior direction (rotation of an ilium in either direction in the sagittal plane).
All are possible—but the possibility of an actual LLD (that is, where there is a cumulative difference in the leg bones' lengths, or when one ankle is pronated and the other is not, or small hemi-pelvis) often gets lost in the specifics of the discussion.
The radiological research from 11 sources (adduced in the book Overcome neck & back pain) tells us that skeletal LLD of 5mm or more (about 1/4") is found in about 50% of the general population, and this fraction is probably higher in the back and neck pain suffering population.
Why not try a "quick and dirty" 'provocation test'? This video shows you how. Do not be concerned about the absolute measure of the difference—just establish whether there is one first. More to come.
All are possible—but the possibility of an actual LLD (that is, where there is a cumulative difference in the leg bones' lengths, or when one ankle is pronated and the other is not, or small hemi-pelvis) often gets lost in the specifics of the discussion.
The radiological research from 11 sources (adduced in the book Overcome neck & back pain) tells us that skeletal LLD of 5mm or more (about 1/4") is found in about 50% of the general population, and this fraction is probably higher in the back and neck pain suffering population.
Why not try a "quick and dirty" 'provocation test'? This video shows you how. Do not be concerned about the absolute measure of the difference—just establish whether there is one first. More to come.
Assessing structural leg length difference gym direct | |
Likes | Dislikes |
21,731 views views | 28.5K followers |
How-to & Style Creative Commons Attribution licence (reuse allowed) View attributions | Upload TimePublished on 24 Nov 2011 |
Không có nhận xét nào:
Đăng nhận xét