Horvat M, Pitetti K H, Croce R
School of Health and Human Performance, University of Georgia, Athens 30602-3651, USA.
J Orthop Sports Phys Ther. 1997 Jun;25(6):395-9. doi: 10.2519/jospt.1997.25.6.395.
For successful placement of individuals with mental retardation into community environments, a minimal amount of functional strength is required to promote self-independence. Since muscular strength and power are commonly deficient in these groups, the purpose of this study was to compare isokinetic elbow flexion and extension peak torque (Nm), average power (W), and corresponding flexion/extension ratios of adults males with Down syndrome, with mental retardation without Down syndrome, and sedentary adult males without mental retardation. Subjects with Down syndrome (N = 9), mental retardation without Down syndrome (N = 13), and without mental retardation (N = 13) were tested for elbow flexion and extension peak torque and average power at 60 and 90 degrees/sec on a Cybex 340 isokinetic dynamometer. Results indicated: 1) subjects without mental retardation displayed significantly greater ( p < 0.01) peak torque and average power elbow flexion and extension than subjects with Down syndrome and subjects with mental retardation without Down syndrome at speeds of 60 and 90 degrees/sec, and 2) there were no significant differences between groups in peak torque and average power elbow flexion/extension ratios at both angular velocities. The results of the data analysis support the premise that adults with mental retardation are in need of exercise programs to improve muscular strength.
为了成功地将智障人士安置到社区环境中，需要一定程度的功能力量来促进自我独立。由于这些群体普遍缺乏肌肉力量和功率，本研究的目的是比较唐氏综合征成年男性、非唐氏综合征智障成年男性和无智障久坐成年男性的等速肘关节屈伸峰值扭矩（Nm）、平均功率（W）以及相应的屈伸比率。对唐氏综合征患者（N = 9）、非唐氏综合征智障患者（N = 13）和无智障患者（N = 13）在Cybex 340等速测力计上进行了60度/秒和90度/秒时肘关节屈伸峰值扭矩和平均功率的测试。结果表明：1）在60度/秒和90度/秒的速度下，无智障受试者的肘关节屈伸峰值扭矩和平均功率显著高于唐氏综合征患者和非唐氏综合征智障患者（p < 0.01）；2）在两个角速度下，各组肘关节屈伸峰值扭矩和平均功率比率之间无显著差异。数据分析结果支持这样一个前提，即智障成年人需要运动计划来提高肌肉力量。
