躯干肌肉属性与老年人的平衡和移动能力有关：一项初步研究。
Trunk muscle attributes are associated with balance and mobility in older adults: a pilot study.
机构信息
Department of PM&R, Harvard Medical School, Boston, MA, USA.
出版信息
PM R. 2009 Oct;1(10):916-24. doi: 10.1016/j.pmrj.2009.09.009.
OBJECTIVE
To determine whether trunk muscle attributes are associated with balance and mobility performance among mobility-limited older adults.
DESIGN
Cross-sectional analysis of data from a randomized clinical trial.
SETTING
Outpatient rehabilitation research center.
PARTICIPANTS
Community-dwelling older adults (N = 70; mean age 75.9 years) with mobility limitations as defined by the Short Physical Performance Battery (SPPB).
METHODS
Independent variables included physiologic measures of trunk extension strength, trunk flexion strength, trunk extension endurance, trunk extension endurance, and leg press strength. All measures were well tolerated by the study subjects without the occurrence of any associated injuries or adverse events. The association of each physiologic measure with each outcome was examined by the use of separate multivariate models to calculate the partial variance (R(2)) of each trunk and extremity measure.
MAIN OUTCOME MEASUREMENTS
Balance measured by the Berg Balance Scale and Unipedal Stance Test and mobility performance as measured by the SPPB.
RESULTS
Trunk extension endurance (partial R(2) = .14, P = .02), and leg press strength (partial R(2) = .14, P = .003) accounted for the greatest amount of the variance in SPPB performance. Trunk extension endurance (partial R(2) = .17, P = .007), accounted for the greatest amount of the variance in BBS performance. Trunk extension strength (R(2) = .09, P = .03), accounted for the greatest amount of the variance in UST performance. The variance explained by trunk extension endurance equaled or exceeded the variance explained by limb strength across all three performance outcomes.
CONCLUSIONS
Trunk endurance and strength can be safely measured in mobility-limited older adults and are associated with both balance and mobility performance. Trunk endurance and trunk strength are physiologic attributes worthy of targeting in the rehabilitative care of mobility-limited older adults.
目的
确定躯干肌肉属性是否与活动能力受限的老年人体位平衡和移动能力表现相关。
设计
随机临床试验数据的横断面分析。
地点
门诊康复研究中心。
参与者
70 名居住在社区的老年人（平均年龄 75.9 岁），其移动能力受限，定义为短体机能测试（SPPB）。
方法
独立变量包括躯干伸展力量、躯干弯曲力量、躯干伸展耐力、躯干伸展耐力和腿部按压力量的生理测量。所有措施均被研究对象很好地耐受，没有发生任何相关损伤或不良事件。使用单独的多元模型检查每个生理测量与每个结果的关联，以计算每个躯干和四肢测量的部分方差（R(2)）。
主要测量结果
平衡通过伯格平衡量表和单足站立测试测量，移动能力通过 SPPB 测量。
结果
躯干伸展耐力（部分 R(2) =.14，P =.02）和腿部按压力量（部分 R(2) =.14，P =.003）占 SPPB 表现变化的最大比例。躯干伸展耐力（部分 R(2) =.17，P =.007）占 BBS 表现变化的最大比例。躯干伸展力量（R(2) =.09，P =.03）占 UST 表现变化的最大比例。躯干伸展耐力解释的方差等于或超过了所有三个表现结果中肢体力量解释的方差。
结论
在活动能力受限的老年人中，可以安全地测量躯干耐力和力量，并且与平衡和移动能力表现相关。躯干耐力和躯干力量是活动能力受限的老年康复护理中值得关注的生理属性。
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