What change in isokinetic knee muscle strength can be detected in men and women with hemiparesis after stroke?

被引:70
作者
Flansbjer, UB
Holmbäck, AM
Downham, D
Lexell, J
机构
[1] Lund Univ, Dept Hlth Sci, Malmo, Sweden
[2] Univ Lund Hosp, Dept Phys Therapy, S-22185 Lund, Sweden
[3] Univ Liverpool, Dept Math Sci, Liverpool L69 3BX, Merseyside, England
[4] Dept Hlth Sci, Lulea, Sweden
[5] Univ Technol, Boden, Sweden
关键词
D O I
10.1191/0269215505cr854oa
中图分类号
R49 [康复医学];
学科分类号
100215 ;
摘要
Objective: To assess the intra-rater (between occasions) test-retest reliability of isokinetic knee muscle strength measurements in subjects with chronic poststroke hemiparesis and to define limits for the smallest change that indicates real (clinical) improvements for stroke patients. Subjects: Fifty men and women (mean age 58+/-6.4 years) 6-46 months post stroke, able to walk at least 300 m with or without a unilateral assistive device. Methods: Maximal concentric knee extension and flexion contractions at 60 degrees/s and 120 degrees/s, and maximal eccentric knee extension contractions at 60 degrees/s, with the paretic and nonparetic limbs, were performed seven days apart using a Biodex dynamometer. Measures: Reliability of the maximum peak torque measurements was evaluated with the intraclass correlation coefficient (ICC2,1), the Bland and Altman analyses, the standard error of measurement (SEM and SEM%) and the smallest real difference (SRD and SRD%). Results: Test-retest agreements were high (ICC2,1 0.89-0.96) with no discernible systematic differences between limbs, angular velocities and modes. The SEM%, representing the smallest change that indicates a real (clinical) improvement for a group of subjects, was relatively small (8-20%). The SRD%, representing the smallest change that indicates a real improvement for a single subject ranged from 26% to 33% for concentric knee extension, from 39% to 55% for concentric knee flexion, and from 22% to 25% for eccentric knee extension. Conclusion: Isokinetic knee muscle strength can be reliably measured and used to detect real improvements following an intervention for single subjects as well as for groups of subjects with chronic mild to moderate hemiparesis after stroke.
引用
收藏
页码:514 / 522
页数:9
相关论文
共 25 条
[21]  
Rothstein JM, 1985, MEASUREMENT PHYSICAL, P1
[22]   INTRACLASS CORRELATIONS - USES IN ASSESSING RATER RELIABILITY [J].
SHROUT, PE ;
FLEISS, JL .
PSYCHOLOGICAL BULLETIN, 1979, 86 (02) :420-428
[23]  
*STAT U NY BUFF, 1996, GUID UN DAT SET MED
[24]   RELIABILITY OF ECCENTRIC ISOKINETIC KNEE FLEXION AND EXTENSION MEASUREMENTS [J].
STEINER, LA ;
HARRIS, BA ;
KREBS, DE .
ARCHIVES OF PHYSICAL MEDICINE AND REHABILITATION, 1993, 74 (12) :1327-1335
[25]   TEST-RETEST RELIABILITY OF ISOKINETIC KNEE EXTENSION AND FLEXION TORQUE MEASUREMENTS IN PERSONS WITH SPASTIC HEMIPARESIS [J].
TRIPP, EJ ;
HARRIS, SR .
PHYSICAL THERAPY, 1991, 71 (05) :390-396