Lang-Tapia Morin, España-Romero Vanesa, Anelo Juan, Castillo Manuel J
Department of Physiology, University of Granada, Granada, Spain.
J Appl Biomech. 2011 May;27(2):143-50. doi: 10.1123/jab.27.2.143.
This aim was to examine differences on lumbar lordosis and thoracic kyphosis in standing position by gender, age and weight status in healthy subjects using a noninvasive method. A total of 297 women (36.6 ± 7.3 years) and 362 men (39.8 ± 7.5 years) participated in this study. Participants were categorized according to the international BMI (kg/m2) cut-off points. Age was stratified by ten years increments starting from 20 y. Men showed smaller lumbar lordosis (17.3 ± 9.3) and larger thoracic kyphosis (42.8 ± 8.8°) than women (29.6 ± 11.3 and 40.4 ± 9.5° respectively; both p < .001). Older groups presented smaller lumbar lordosis and larger thoracic kyphosis values compared with the 20-29 y group (20.9 ± 10.4, 20.8 ± 11.2 and 23.6 ± 12.6° for ≥ 50, 40-49 and 30-39 y, respectively vs. 26.7 ± 12.2° for 20-29 y in lumbar lordosis and 42.6 ± 9.8, 42.61 ± 8.7 and 41.8 ± 8.9° for ≥ 50, 40-49 and 30-39 y, respectively vs. 37.5 ± 10.9° for 20-29 y in thoracic kyphosis; both p < .05). Finally, overweight and obese groups showed smaller lumbar lordosis (19.4 ± 11.1 and 20.9 ± 11.8° respectively) and larger thoracic kyphosis values (42.7 ± 8.9 and 42.8 ± 9.4° respectively) compared with nonoverweight participants (25.1 ± 12.4 and 40.6 ± 9.2° for lumbar lordosis and thoracic kyphosis respectively; all p < .05). However, when gender, age and weight status were take into account all together only gender seems to influence the lumbar lordosis curvature. The results of this study suggest that gender could be the only determinant factor of lumbar lordosis in healthy people.
本研究旨在采用无创方法，研究健康受试者在站立位时，腰椎前凸和胸椎后凸在性别、年龄和体重状况方面的差异。共有297名女性（36.6±7.3岁）和362名男性（39.8±7.5岁）参与了本研究。参与者根据国际BMI（kg/m²）切点进行分类。年龄以10年为增量进行分层，从20岁开始。男性的腰椎前凸较小（17.3±9.3），胸椎后凸较大（42.8±8.8°），而女性分别为（29.6±11.3和40.4±9.5°；两者p＜0.001）。与20-29岁组相比，年龄较大的组腰椎前凸较小，胸椎后凸值较大（≥50岁、40-49岁和30-39岁组的腰椎前凸分别为20.9±10.4、20.8±11.2和23.6±12.6°，而20-29岁组为26.7±12.2°；≥50岁、40-49岁和30-39岁组的胸椎后凸分别为42.6±9.8、42.61±8.7和41.8±8.9°，而20-29岁组为37.5±10.9°；两者p＜0.05）。最后，与非超重参与者相比，超重和肥胖组的腰椎前凸较小（分别为19.4±11.1和20.9±11.8°），胸椎后凸值较大（分别为42.7±8.9和42.8±9.4°）（腰椎前凸和胸椎后凸分别为25.1±12.4和40.6±9.2°；所有p＜0.05）。然而，当综合考虑性别、年龄和体重状况时，似乎只有性别会影响腰椎前凸的曲度。本研究结果表明，性别可能是健康人群中腰椎前凸的唯一决定因素。
