Characteristic gait patterns in older adults with obesity--results from the Baltimore Longitudinal Study of Aging.
Characteristic gait patterns in older adults with obesity--results from the Baltimore Longitudinal Study of Aging.
复制标题
DOI：
10.1016/j.jbiomech.2009.12.004
复制
发表时间：
2010-04-19
影响因子：
2.4
通讯作者：
Ferrucci, Luigi
中科院分区：
文献类型：
--
作者：
Ko, Seung-uk;Stenholm, Sari;Ferrucci, Luigi
老年人肥胖是一个日益严重的公共卫生问题。体重过重会给下肢关节带来生物力学负担，并导致关节病理。本研究的目的是确定与体重指数 (BMI) 相关的步态的具体特征。对来自巴尔的摩纵向衰老研究 (BLSA) 的 164 名（50-84 岁）能够独立行走的参与者进行了偏好和最大速度行走以及相关步态特征的检查。参与者根据体重指数分为三组：正常体重（19 ≤ BMI < 25 kg/m2）、超重（25 ≤ BMI < 30 kg/m2）和肥胖（BMI 30 ≤ BMI < 40 kg/m2）。对于首选步行 (p = 0.026) 和最大速度步行 (p < 0.001)，随着 BMI 的增加，前后 (AP) 平面的踝关节总生成机械功消耗 (MWE) 逐渐显着降低。在内侧-外侧 (ML) 平面中，与正常体重参与者相比，肥胖参与者在首选速度任务中的全膝生成性 MWE 较高 (p = 0.002)，而肥胖参与者在首选速度 (p < 0.001) 和最大速度 (p = 0.002) 步行任务中的总髋部吸收性 MWE 较高。肥胖的老年人表现出时空步态模式，这可能有助于减少接触影响。此外，肥胖者的机械能使用量在 AP 平面中往往较低，在 ML 平面中较高。由于向前行进的力主要与正常行走有关，因此在肥胖参与者中发现的这种模式表明能量效率较低。
Obesity in older adults is a growing public health problem. Excess weight causes biomechanical burden to lower extremity joints and contribute to joint pathology. The aim of this study was to identify specific characteristics of gait associated with body mass index (BMI). Preferred and maximum speed walking and related gait characteristics were examined in 164 (50–84 years) participants from Baltimore Longitudinal Study of Aging (BLSA) able to walk unassisted. Participants were divided into three groups based on their BMI: normal weight (19 ≤ BMI < 25 kg/m2), overweight (25 ≤ BMI < 30 kg/m2) and obese (BMI 30 ≤ BMI < 40 kg/m2). Total ankle generative mechanical work expenditure (MWE) in the anterior-posterior (AP) plane was progressively and significantly lower with increasing BMI for both preferred (p = 0.026) and maximum speed walking (p < 0.001). In the medial-lateral (ML) plane, total knee generative MWE was higher in obese participants in the preferred speed task (p = 0.002), and total hip absorptive MWE was higher in obese in both preferred speed (p < 0.001) and maximum speed (p = 0.002) walking task compared to the normal weight participants. Older adults with obesity show spatiotemporal gait patterns which may help to reduce contact impacts. In addition, in obese persons mechanical energy usages tend to be lower in the AP plane and higher in the ML plane. Since forward progression forces are mainly implicated in normal walking, this pattern found in obese participants is suggestive of lower energetic efficiency.
登录
查看更多内容
影响因子：
5
作者：
Houston, Denise K.;Ding, Jingzhong;Kritchevsky, Stephen B.
通讯作者：
Kritchevsky, Stephen B.
影响因子：
2.4
作者：
Lewis, Cara L.;Ferris, Daniel P.
通讯作者：
Ferris, Daniel P.
影响因子：
4.3
作者：
McGraw, B;McClenaghan, BA;Ward, DS
通讯作者：
Ward, DS
影响因子：
2.4
作者：
Ko, Seung Uk;Ling, Shari M.;Ferrucci, Luigi
通讯作者：
Ferrucci, Luigi
影响因子：
1.8
作者：
Lai, Peggy P. K.;Leung, Aaron K. L.;Zhang, M.
通讯作者：
Zhang, M.