DIFFERENCE BETWEEN UPPER AND LOWER LUMBAR SPINE LORDOSIS ON THE BASIS OF THE HIP EXTENSION RANGE
- VernacularTitle:股関節伸展可動域の大きさによる上位および下位腰椎の前彎増強の違い
- Author:
TAKUYA IBARA
;
TSUYOSHI AKIMOTO
;
HIROMUNE OBAYASHI
;
YUKI YAMANAKA
;
YUKIO URABE
- Publication Type:Journal Article
- Keywords:
Low back pain;
Lumbar spine;
Hip extension range of motion
- From:Japanese Journal of Physical Fitness and Sports Medicine
2010;59(4):357-362
- CountryJapan
- Language:Japanese
-
Abstract:
Decrease in the hip extension range of motion (HE-ROM) can cause lumbar hyperlordosis. Hyperlordosis is one of the mechanisms underlying low back pain. A diagnosis of low back pain from hyperlordosis can be used to detect the area in which hyperlordosis occurs more easily—the upper or lower lumbar spine. Twenty-one men were recruited for this study. HE-ROM was measured manually. Lumbar alignment was measured on a bed in a prone position. We extended the subject's hip by bending the bed at 4 angles (0°, 10°, 15°, 30°) and measured the spinal alignment by using a SpinalMouse. The results showed that lumbar lordosis increased at the bed angles of 15°and 30°. Only when the bed angle was changed from 0° to 30°, the increased angle of the lumbar spine was negatively correlated to the HE-ROM (r=-0.46, p<0.05), particularly that of the lower lumbar spine (r=-0.47, p<0.05). These findings suggested that lower lumbar lordosis tends to increase in individuals with poor HE-ROM. Additionally, increase in lower lumbar lordosis is attributed to the tendency to have low back pain in the lower lumbar spine.
