Iverson B D, Gossman M R, Shaddeau S A, Turner M E
Knapp Rehabilitation Center, Metropolitan Mount Sinai Hospital, Minneapolis, MN 55404.
Phys Ther. 1990 Jun;70(6):348-55. doi: 10.1093/ptj/70.6.348.
The purpose of this study was to collect and analyze balance and muscle performance data obtained from 54 men aged 60 to 90 years. Balance was tested using the sharpened Romberg test (SR) and the one-legged stance test (OLST) on each foot with eyes open and eyes closed. A strain-gauge-based quantitative muscle tester (QMT) was used to measure force production. All torque values were normalized as a percentage of body weight. A self-report of activity level also was recorded. The results indicated that OLST scores and normalized torques of the hip flexors, extensors, and abductors had a positive correlation and that SR scores and normalized torques of the hip extensors and right hip abductors had a positive correlation. Subjects who considered themselves to be very active had a significantly higher SR eyes-closed balance time as compared with those who rated themselves as less active. Subjects who considered themselves to be very active also had significantly higher normalized torque values for most muscle groups tested. Negative relationships were shown between age and balance time and between age and force production.
本研究的目的是收集并分析从54名年龄在60至90岁之间的男性身上获取的平衡和肌肉性能数据。采用改良罗姆伯格试验（SR）和单腿站立试验（OLST），分别在每只脚睁眼和闭眼的情况下测试平衡能力。使用基于应变片的定量肌肉测试仪（QMT）来测量力量产生情况。所有扭矩值均按体重百分比进行标准化。还记录了活动水平的自我报告。结果表明，OLST得分与髋部屈肌、伸肌和外展肌的标准化扭矩呈正相关，SR得分与髋部伸肌和右髋外展肌的标准化扭矩呈正相关。自认为非常活跃的受试者与自认为活动较少的受试者相比，其闭眼时的SR平衡时间显著更长。自认为非常活跃的受试者在大多数测试肌肉群中的标准化扭矩值也显著更高。年龄与平衡时间以及年龄与力量产生之间呈现负相关关系。
