The article has it completely wrong. My orthopedic surgeon told me that the straight up feet on the floor, as recommended in the article, is all wrong. My doctor, James Welch was one of the inventor's of the artificial knee. He knows a lot about the human muscular/skeletal systems. The proper way to sit is slouched, with the hips forward of the shoulders, feet elevated 3 or 4 inches, and the knees above the hip girdle.
The straight up posture causes the hip girdle to rotate forward (clockwise), pinching the sciatic nerve. Permanent relief is obtained rotating the hip girdle backwards into the proper position. The lower back muscles must be strengthened to keep the spine in proper alignment. My back was so bad there times that I couldn't stand up with out help.
Dr. Welch had me change my sitting to the aforesaid position. He had the phys. therapist work with me on a half dozen different exercises. He also had me use a heat lamp once a day.
That was in 1972. I have not had any problems since.
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I find that sitting with the keyboard on my lap prevents wrist problems as well.
The article has it completely wrong. My orthopedic surgeon told me that the straight up feet on the floor, as recommended in the article, is all wrong. My doctor, James Welch was one of the inventor's of the artificial knee. He knows a lot about the human muscular/skeletal systems. The proper way to sit is slouched, with the hips forward of the shoulders, feet elevated 3 or 4 inches, and the knees above the hip girdle. The straight up posture causes the hip girdle to rotate forward (clockwise), pinching the sciatic nerve. Permanent relief is obtained rotating the hip girdle backwards into the proper position. The lower back muscles must be strengthened to keep the spine in proper alignment. My back was so bad there times that I couldn't stand up with out help. Dr. Welch had me change my sitting to the aforesaid position. He had the phys. therapist work with me on a half dozen different exercises. He also had me use a heat lamp once a day. That was in 1972. I have not had any problems since.