Three-dimensional gait analysis of obese adults
Three-dimensional gait analysis of obese adults
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DOI：
10.1016/j.clinbiomech.2008.02.004
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发表时间：
2008-01-01
影响因子：
1.8
通讯作者：
Zhang, M.
中科院分区：
文献类型：
--
作者：
Lai, Peggy P. K.;Leung, Aaron K. L.;Zhang, M.
背景。肥胖在临床上与肌肉骨骼疾病有关。然而，这些发现主要集中在矢状面分析上。本研究的目的是研究中国肥胖成人的三维步态特征，并与正常受试者进行比较。本研究共纳入14例肥胖受试者，平均年龄35.4（8.8）岁，女性8人，男性6人，体重指数33.06 (4.2)kg/m2(2)； 14例非肥胖受试者，平均年龄27.6（8.6）岁，女性8人，男性6人，体重指数21.33 (1.5)kg/m2。所有受试者目前或过去均无神经系统或心血管疾病、骨科异常或可能影响步态的疼痛。用三维运动分析系统记录所有受试者在自行选择步行速度时的运动学和动力学数据。肥胖组走路速度较慢，步幅较短。他们也花了更多的时间在站立阶段和双支撑行走。肥胖组在站立末期和摇摆前髋关节内收更大。肥胖组站姿和摆姿的最大膝关节内收角度均显著增高。肥胖组踝关节外翻角度从中位到摆前明显增高。踝关节峰值跖屈力矩减小，踝关节内翻力矩增大。在时间和空间上存在显著差异。肥胖和非肥胖参与者之间的关节运动和关节力矩数据。肥胖个体可能会根据自己的体重调整步态特征，以减少膝盖周围的力矩和单位时间的能量消耗。(C) 2008 Elsevier Ltd版权所有。
Background. Obesity has been clinically associated with musculoskeletal disorders. However, the findings were mainly focused oil the analysis in the sagittal plane. The objectives of this study were to investigate the three-dimensional gait characteristics of Chinese obese adults and to compare the results with normal subjects.Methods. Fourteen obese subjects, mean age 35.4 (8.8) years, eight females and six males, with body mass index 33.06 (4.2) kg/m(2) and 14 non-obese subjects, mean age 27.6 (8.6) years, eight females and six males, with body mass index 21.33 (1.5) kg/m2 participated in this study. All subjects did not have current or past neurological or cardiovascular illness, orthopaedic abnormality, or pain which might affect gait. The kinematics and kinetics data of all subjects were recorded during their self-selected walking speed with a three-dimensional motion analysis system.Findings. The obese group walked slower and had a shorter stride length. They also spent more time oil stance phase and double support in walking. Greater hip adduction was shown in the obese group during terminal stance and pre-swing. The maximum knee adduction angles of the obese group in both stance and swing phases were significantly higher. The ankle eversion angle of the obese group was significantly higher from mid stance to pre-swing. There were reduction of peak ankle plantar flexor moment, and increase of ankle inversion moment.Interpretation. There were some significant differences in temporal-spatial. joint motion and joint moment data between the obese and the non-obese participants. The obese individuals might adjust their gait characteristics in response to their heavy bodies to reduce the moment about the knee and the energy expenditure per unit time. (C) 2008 Elsevier Ltd. All rights reserved.