Analysis of lumbar spine and hip motion during forward bending in subjects with and without a history of low back pain.

摘要: STUDY DESIGN This study analyzed two groups of subjects during forward bending. Group 1 (n = 20) contained with a history low back pain and 2 21) included without pain. OBJECTIVE The purposes this were to establish the amount pattern lumbar spine hip motion bending, determine differences in SUMMARY OF BACKGROUND DATA Reported values for bending vary from 23.9 degrees 60 ranges 26 66 degrees. There has been no direct both total amounts or METHODS A three-dimensional optoelectric analysis system was used measure velocity Each subject performed three trials that averaged statistical analysis. Hamstring flexibility also assessed by clinical tests, passive straight leg raising active knee extension tests. RESULTS Mean all 111 degrees: 41.6 69.4 hips. group described calculating lumbar-to-hip flexion ratios early (0-30 degrees), middle (30-60 late (60-90 degrees) For subjects, mean early, middle, 1.9, 0.9, 0.4, respectively. Therefore, had greater contribution hips contributed almost equally t test revealed difference between motion. tended move more at their significantly lower ratio (P < 0.01). strongly correlated pain, but not healthy subjects. CONCLUSIONS results provide quantitative data guide assessment Results suggest although people have similar those is different. It may be desirable teach patients use hamstring stretching helpful encouraging earlier