In this study, a motion analysis system was used to measure the amount and velocity of lumbar spine and hip motion during forward bending.
The authors begin by citing the following previous findings:
Epidemic of Low Back Pain
“Disorders of the low back have reached epidemic proportions, (DeRosa, C.P., 1992).”
Lost Work Time | Workers’ Compensation Claims from Low Back Pain
“Epidemiologic studies show that billions of dollars are spent annually on the problem of low back pain, which is one of the most commonly-cited problems for lost work time in industry and Workers’ Compensation claims, (Chase, J.A., 1992; Frymoyer, J.W., 1988; and Pope, M.H., et al., 1991).”
Frequent Forward Bending Causes Low Back Pain
“Researchers have shown an association between frequent forward bending and low back pain, (Berquist-Ullman, M., et al., 1977; Magora, A., 1973; Mellin, G., 1986; Punnett, L, et al., 1991; Svensson H.O., et al., 1989; Videman T., et al., 1989).”
Slouching while Seated | Bending at the Waist While Standing Causes Low Back Pain
“Prolonged sitting with the lumbar spine in a flexed position (slouching) and flexed standing postures (bending at the waist) are also associated with an increased risk of low back pain, (Anderson, G.B.J., 1991; Berquist-Ullman, M., et al., 1977; Magora, A., 1972; Punnett, L., et al., 1991; Riihimaki, H., et al., 1989).”
Occupations Involving Repetitive Forward Bending Can Cause Low Back Pain
“Saunders reports that people with herniated inter-vertebral discs often have a history of an activity or occupation involving repetitive forward bending.”
“Nachemson (1981) has shown that inter-vertebral disc pressure increases 20 percent over that measured in standing when forward bending 20 degrees, and increases 100 percent when bending up to 40 degrees.”
Inadequate Hip Flexibility | Excessive Lumbar Motion Can Cause Low Back Pain
“It has been suggested that inadequate hip flexibility coupled with excessive lumbar motion during forward bending results in low back pain, (Biering-Sorenson, F., 1984; Sahramann, S.A., 1993). . .Sahramann (1993) suggests that excessive lumbar mobility leads to tissue overloading, micro-trauma, and ultimately the development of degenerative joint and disc disease. A person may experience low back pain at any stage of this sequence of events.
Forward Bending is a Risk Factor for Low Back Pain
“Forward bending has been clearly recognized as a risk factor for low back pain. Altered movement patterns of the lumbar spine and hips during forward bending may help explain why forward bending is a risk factor for the development of low back pain.”
Hamstring Stretching Helpful
In the conclusions, the authors state: “The results provide quantitative data to guide clinical assessment of forward bending motion.
Results also suggest that although people with a history of low back pain have amounts of lumbar spine and hip motion during forward bending similar to those of healthy subjects, the pattern of motion is different. It may be desirable to teach patients with a history of low back pain to use more hip motion during early forward bending, and hamstring stretching may be helpful for encouraging earlier hip motion.”
Patented Ergonomic Seating Cushion | The Buttpillow (TM) Helpful
The Patented Ergonomic Seating Cushion has a wedge shape which can minimize forward bending while seated, reducing your risk factors of developing low back pain.
- Spine, Volume 21, Number 1, pp. 71-78, 1996, “Analysis of Lumbar Spine and Hip Motion During Forward Bending in Subjects With and Without a History of Low Back Pain,” written by Marcia A. Esola, M.S., P.T.; Philip W. McClure, M.S., P.T.; G. Kelley Fitzgerald, M.S., P.T.; and Sorin Siegler, Ph.D., U.S.A.; and
Previous Findings Cited:
- DeRosa, C.P., 1992
- Chase, J.A., 1992; Frymoyer, J.W., 1988; and Pope, M.H., et al., 1991
- Berquist-Ullman, M., et al., 1977; Magora, A., 1973; Mellin, G., 1986; Punnett, L, et al., 1991; Svensson H.O., et al., 1989; Videman T., et al., 1989
- Biering-Sorenson, F., 1984; Sahramann, S.A., 1993