Construct validity of myotonometric measurements of muscle compliance as a measure of strength

被引:29
作者
Gubler-Hanna, Coral
Laskin, James
Marx, Benjamin J.
Leonard, Charles T. [1 ]
机构
[1] Univ Montana, Coll Hlth & Biomed Sci, Motor Control Res Lab, Sch Phys Therapy & Rehabil Sci, Missoula, MT 59812 USA
[2] Neuron Technol Inc, Missoula, MT 59812 USA
关键词
muscle compliance; myotonometer; electromyography; isometric; strength testing;
D O I
10.1088/0967-3334/28/8/013
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
Myotonometric measurement of muscle compliance represents new technology that quantifies muscle tone. Compliance change during muscle contraction might provide an indirect measure of strength. The purpose of this study was to determine relationships among myotonometric measurements of muscle compliance, surface electromyographic ( sEMG) measurements of muscle activation and joint force production during voluntary isometric knee extensions. The level of relationship will contribute to the construct validity of use of muscle compliance as an indirect strength measurement. Thirteen male subjects, mean age 25 +/- 1.5 years, participated. Simultaneous recordings of myotonometric, sEMG of the rectus femoris and isometric knee extension force measurements were taken at rest, during maximal voluntary contraction ( MVC), and during 33% and 66% MVC contractions. Relationships among the three measurement procedures were calculated using correlation and regression analyses. Myotonometric measures of muscle compliance, sEMG and force measurements were highly correlated. Myotonometric measurements were best represented by a curvilinear ( quadratic) relationship to sEMG ( r = 0.82, p < 0.001) and joint force ( r = 0.83, p < 0.001). The present experiments establish the construct validity of myotonometric measurements of muscle compliance as an indirect means of quantifying muscle strength and activation levels. This method, therefore, offers a possible alternative for cases in which direct measurement of joint force or sEMG is difficult or inappropriate.
引用
收藏
页码:913 / 924
页数:12
相关论文
共 25 条
[11]   Can mechanical myotonometry or electromyography be used for the prediction of intramuscular pressure? [J].
Korhonen, RK ;
Vain, A ;
Vanninen, E ;
Viir, R ;
Jurvelin, JS .
PHYSIOLOGICAL MEASUREMENT, 2005, 26 (06) :951-963
[12]   OPTIMAL-CONTROL OF ANTAGONISTIC MUSCLE-STIFFNESS DURING VOLUNTARY MOVEMENTS [J].
LAN, N ;
CRAGO, PE .
BIOLOGICAL CYBERNETICS, 1994, 71 (02) :123-135
[13]   Correlation between impairment and motor performance during reaching tasks in subjects with spastic hemiparesis [J].
Leonard, Charles T. ;
Gardipee, Kelsey A. ;
Koontz, Jennifer R. ;
Anderson, John-Henry ;
Wilkins, Scott A. .
JOURNAL OF REHABILITATION MEDICINE, 2006, 38 (04) :243-249
[14]   Comparison of surface electromyography and myotonometric measurements during voluntary isometric contractions [J].
Leonard, CT ;
Brown, JS ;
Price, TR ;
Queen, SA ;
Mikhailenok, EL .
JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY, 2004, 14 (06) :709-714
[15]   Assessing the spastic condition of individuals with upper motoneuron involvement: Validity of the myotonometer [J].
Leonard, CT ;
Stephens, JU ;
Stroppel, SL .
ARCHIVES OF PHYSICAL MEDICINE AND REHABILITATION, 2001, 82 (10) :1416-1420
[16]  
LEONARD CT, 2000, Patent No. 6063044
[17]   ELECTROMYOGRAPHIC RESPONSES OF THE HUMAN TRICEPS SURAE AND FORCE TREMOR DURING SUSTAINED SUBMAXIMAL ISOMETRIC PLANTAR FLEXION [J].
LOSCHER, WN ;
CRESSWELL, AG ;
THORSTENSSON, A .
ACTA PHYSIOLOGICA SCANDINAVICA, 1994, 152 (01) :73-82
[18]   1998 ISEK Congress Keynote Lecture - The use of electromyography in applied physiology [J].
Moritani, T ;
Yoshitake, Y .
JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY, 1998, 8 (06) :363-381
[19]   Changes in hardness of the human elbow flexor muscles after eccentric exercise [J].
Murayama, M ;
Nosaka, K ;
Yoneda, T ;
Minamitani, K .
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY, 2000, 82 (5-6) :361-367
[20]   Comparison of three methods to assess muscular strength in individuals with spinal cord injury [J].
Noreau, L ;
Vachon, J .
SPINAL CORD, 1998, 36 (10) :716-723