Body mass as a factor in stature change
Body mass as a factor in stature change
复制标题
DOI：
10.1016/j.clinbiomech.2005.04.005
复制
发表时间：
2005-10-01
影响因子：
1.8
通讯作者：
Henrique, DV
中科院分区：
文献类型：
--
作者：
Felix, RAL;Edward, FN;Henrique, DV
背景背痛是一种常见的疾病，被描述为严重的公共卫生问题。脊柱收缩已被用作一系列任务中脊柱负荷的指标。流行病学证据表明，体重指数（BMI：30 kg/m2）与腰痛的发生有关，但没有研究描述肥胖个体的身高变化模式。本研究旨在比较肥胖和非肥胖个体在运动任务后身高的变化。20名志愿者被分为两组;肥胖：BMI > 30 kg/m2，非肥胖：BMI < 25 kg/m2。在30分钟步行任务和30分钟站立恢复期期间，每隔3分钟测量一次身高。测试进行了两次，一次是参与者在行走任务期间加载（10%体重），一次是卸载。通过双因素方差分析比较肥胖和负荷条件对身高变化幅度和速度的影响。在两组中，负荷条件下的身高损失大于非负荷条件下的身高损失（平均值（SD））（非肥胖组为6.52（1.45）min和3.55（0.93）min;肥胖组为8.49（1.75）min和7.02（1.32）min：P = 0.016）。肥胖者在两种任务条件下的身高都有较大的降低。肥胖组在恢复期无论何种任务条件下都无法恢复身高（负荷：0.06（0.3）min;非负荷：0.32（0.6）min; P = 0.013）。得出的结论是，急性反应的脊柱负荷可能是一个危险因素，下背痛的肥胖，除了慢性适应先前报道。对于肥胖的个体来说，恢复椎间盘高度可能需要更长的时间。这些发现可能有助于解释肥胖者背部疾病的高发病率。(c)2005爱思唯尔有限公司保留所有权利。
Background. Back pain is a common condition which has been described as a serious public health problem. Spinal shrinkage has been used as an index of spinal loading in a range of tasks. Epidemiological evidence shows that body mass index (BMI: 30 kg/m(2)) is related to the development of low back pain however, no studies have described the stature change patterns of obese individuals. This study aimed to compare changes in stature after an exercise task in obese and non-obese individuals.Methods. Twenty volunteers were divided into two equal groups; obese: BMI > 30 kg/m(2), non-obese: BMI < 25 kg/m(2). Stature was measured at 3 min intervals during a 30 min walking task and a 30 min standing recovery period. Tests were performed on two occasions, once with participants loaded during the walking task (10% body mass) and once unloaded. The influence of obesity and load condition on the magnitude and rate of stature change were compared by a two-way ANOVA.Findings. In both groups the stature loss was greater in the loaded than unloaded condition (mean (SD)) (6.52 (1.45) min and 3.55 (0.93) min non-obese; 8.49 (1.75) min and 7.02 (1.32) min obese: P = 0.016). The obese presented a greater reduction in stature in both task conditions. The obese group were unable to recover stature regardless of the task condition during the recovery period (loaded: 0.06 (0.3) min; unloaded: 0.32 (0.6) min; P = 0.013).Interpretation. It was concluded that the acute response of the spine to loading may represent a risk factor for low back pain in the obese, in addition to the chronic adaptations previously reported. A greater period of recovery may be necessary for obese individuals to re-establish intervertebral disc height. These findings may help to explain the high incidence of back disorders in obese individuals. (c) 2005 Elsevier Ltd. All rights reserved.