青少年特发性脊柱侧凸的体成分。
Body composition in adolescent idiopathic scoliosis.
机构信息
Servei de COT, Unidad de Raquis Hospital del Mar-IMIM, Universitat Autónoma de Barcelona, Paseo Marítimo 25-29, 08003 Barcelona, Spain.
出版信息
Eur Spine J. 2013 Feb;22(2):324-9. doi: 10.1007/s00586-012-2465-y. Epub 2012 Aug 12.
STUDY DESIGN
A controlled prospective cross-sectional case study.
OBJECTIVE
To investigate body mass index (BMI) and corporal composition in girls with adolescent idiopathic scoliosis (AIS) and compare them with a normal population matched by sex and age. There is controversy as to whether there are real anthropometric alterations in patients with AIS. Relative to the weight or the BMI, some studies find differences and other studies do not detect them. AIS and anorexia nervosa (AN) make their debut during adolescence and both may be associated with an alteration of their subjective physical perception. Some authors propose a link between AIS and AN supported both by an alteration of physical perception and lower BMI. No studies on body composition in AIS have been published.
METHODS
Adolescent idiopathic scoliosis patient surgery candidates during 2008 were studied. Body composition was evaluated using the bioelectrical impedance analysis (Bodystat, Isle of Man, UK). A study population of more than 5,000 patients that was published by Kyle et al. (Nutrition 17:534-541, 2001) was chosen as a control (group 1). Another control group (group 2) of healthy volunteers matched by sex and age was selected among a school age and university population in Barcelona, Spain. A variance analysis was used to analyze differences between the mean values of the control group 1, the European control group, and the AIS patient surgery candidates (Epiinfo 6.2001). Comparisons between the AIS patients and control group 2 were performed with the T Student test of unpaired samples using the SPSS 15.0 (Statistical Package Social Science) software.
RESULTS
Twenty-seven women with a mean age of 17.4 years. BMI was 18.9 kg/m(2) (SD 1.7; 95 % CI 18.31-19.73). In the variance analysis, a significant difference between AIS and group 1 in BMI was observed (21.0 vs. 18.9, p = 0.000004); fat-free mass (FFM = 42.6 vs. 38.9, p = 0.0000009) and fat mass (FM = 15.6 vs. 13.7, p = 0.03). Significant differences in BMI (22.13 vs. 18.9, p = 0.001; 95 % CI difference 1.85-4.60), fat mass index (FMi = 7.17 vs. 4.97, p = 0.000; 95 % CI difference 1.36-3.05) and fat-free mass index (FFMi = 14.95 vs. 13.09, p = 0.001; 95 % CI difference 0.26-1.86) between AIS and group 2 were also seen.
CONCLUSION
The conclusion is that there is a real alteration of body composition in AIS. The BMI, FFMi and FMi are lower than in the general population in the series under study.
研究设计
一项对照前瞻性病例对照研究。
目的
调查青少年特发性脊柱侧凸（AIS）患者的体重指数（BMI）和身体成分，并与性别和年龄匹配的正常人群进行比较。关于 AIS 患者是否存在真实的人体测量学改变存在争议。与体重或 BMI 相比，一些研究发现存在差异，而另一些研究则未发现差异。AIS 和神经性厌食症（AN）都在青春期发病，两者都可能与主观身体感知的改变有关。一些作者提出 AIS 和 AN 之间存在联系，这一观点得到了身体感知改变和较低 BMI 的支持。目前尚无关于 AIS 患者身体成分的研究。
方法
对 2008 年接受 AIS 手术的患者进行了研究。使用生物电阻抗分析（Bodystat，马恩岛，英国）评估身体成分。选择 Kyle 等人发表的超过 5000 名患者的研究人群（Nutrition 17：534-541，2001）作为对照组 1。在西班牙巴塞罗那的一个学龄和大学人群中选择了另一个由性别和年龄匹配的健康志愿者对照组 2。使用 Epiinfo 6.2001 软件对对照组 1、欧洲对照组和 AIS 患者手术候选者的平均值进行方差分析。使用 SPSS 15.0（社会科学统计软件包）软件的未配对样本 T 学生检验对 AIS 患者与对照组 2 进行比较。
结果
27 名平均年龄为 17.4 岁的女性。BMI 为 18.9kg/m²（SD 1.7；95%CI 18.31-19.73）。在方差分析中，AIS 与对照组 1 的 BMI 差异具有统计学意义（21.0 与 18.9，p=0.000004）；无脂肪质量（FFM=42.6 与 38.9，p=0.0000009）和脂肪质量（FM=15.6 与 13.7，p=0.03）。BMI（22.13 与 18.9，p=0.001；95%CI 差值 1.85-4.60）、脂肪质量指数（FMi=7.17 与 4.97，p=0.000；95%CI 差值 1.36-3.05）和无脂肪质量指数（FFMi=14.95 与 13.09，p=0.001；95%CI 差值 0.26-1.86）也存在差异。
结论
结论是 AIS 患者的身体成分确实发生了改变。在本研究中，BMI、FFMi 和 FMi 均低于一般人群。
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