Objective: In order to discuss the application value of intensity/time(L/T) curves on the rehabilitation assess ment of prolapsed lumbar intervertebral disc. Method: 244 I/T curves of 111 cases including musculus tibialis anterior、 musculus fibularis longus、musculus extensor hallucis longus were measured. 56 cases were operated. Result: In the 11- 1cases, 24cases were normal, 83 cases were partial degeneration, 4 cases were complete degeneration, the positive ratio was 78.38％. The I/T curves in 56 operated cases, 4 cases were complete degeneration, 45 cases were partial degeneration, 7 cases were normal. In 87.50% cases the I/T curve accorded with operation. In 244 I/T curves, 115 curves were normal, 125 curves were partial degeneration, 4 curves were complete degeneration. The positive ratio were 52.05％.Conclusion: The application value of L/T curves was significant on the rehabilitation assessment of prolapsed lumbar intervertebral disc.

Objective: To study the effects of mm. abdominis exercise on lumbar spinal stenosis. Methods: 9 patients with lumbar spinal stenosis were treated with mm. abdominis exercises. The static and dynamic strength indexes, the sagittal diameter of canales spinalis tested by ultrasonography were observed and compared before and after treatment. Results: The effect of 3 patients was excellent, 5 good and 1 bad, and the strengths of mm. abdominis increased after treatment. The sagittal diameter of canales spinalis were 8.72±0.44mm and 10.78±0.44mm respectively before and after treatment. The difference was significant (P<0.001). Conclusion: It is suggested that mm. abdominis exercise is an effective technique in management of lumgar spinal stenosis.