J-Shaped Spine Upper Back Curvature - How Many Degrees? 

Charles431
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J-Shaped Spine Upper Back Curvature - How Many Degrees? 

In the West today doctors define a "normal" posture as having a kyphotic upper back curve of 30 - 35 degrees (below 15 degrees is considered flat-back, and above 50 is considered kyphosis).  As Esther Gokhale has reported, people who live in nature and squat have a straighter posture, with a more J-shaped spine overall.  Does anyone know what those people's normal kyphotic upper back curve is (ideally the mean and range)?  

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Charles431

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It will be a good day when we have that granular an understanding of our brethren in less industrialized parts of the world. It means not destroying their habitat, visiting them in challenging terrain, winning their trust, bringing along equipment to take responsible measurements, and having research grade analysis of what is gathered. Each step is hard. We are trying, but we are challenged by being a small organization with limited resources. We are, however, very determined and will keep you posted when we succeed. 

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