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2013 | 36 | 1 | 69-76
Tytuł artykułu

A Reliability of Electromyographic Normalization Methods for the Infraspinatus Muscle in Healthy Subjects

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The purpose of this study was to examine the test-retest reliability of normalization methods for the infraspinatus muscle in a group of healthy subjects. Twelve healthy subjects (male=8, female=4) performed the maximal voluntary isometric contraction (MVIC) with examiner`s resistance, MVIC with a digital tension-meter (MVIC-DT), and sub-MVIC methods. Surface electromyography (EMG) signals were recorded from the infraspinatus muscles according to normalization methods. Reliability was analyzed using the intra-class coefficient (ICC), standard error of measurement (SEM), and minimal detectable difference (MDD). The results of the present study demonstrated that the sub-MVIC method has excellent test-retest reliability (ICC=0.92) with a relatively small SEM (5.9 mV) and MDD95 (16.4 mV), compared to MVIC-DT (ICC=0.73; SEM=11.2 mV; MDD95: 31 mV) and MVIC-E (ICC=0.5; SEM=15.7 mV; MDD95: 43.6 mV). These findings provide evidence that sub-MVIC is more appropriate for comparing the EMG activity for the infraspinatus muscle as a normalization method. If MVIC for normalization is needed, MVIC-DT is more appropriate than MVIC-E.
Wydawca

Rocznik
Tom
36
Numer
1
Strony
69-76
Opis fizyczny
Daty
wydano
2013-03-01
online
2013-04-13
Twórcy
autor
  • Department of Physical Therapy, Division of Health Science, Baekseok University, Cheon-an, Republic of Korea
  • Applied Kinesiology and Ergonomic Technology Laboratory, Department of Physical Therapy, College of Health Science, Yonsei University, Won-ju, Republic of Korea
autor
  • Laboratory of Kinetic Ergocise Based on Movement Analysis, Department of Physical Therapy, College of Health Science, Yonsei University, Won-ju, Republic of Korea
  • Laboratory of Kinetic Ergocise Based on Movement Analysis, Department of Physical Therapy, College of Health Science, Yonsei University, Won-ju, Republic of Korea
  • Department of Physical Therapy, Division of Health Science, Baekseok University, Cheon-an, Republic of Korea
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_hukin-2013-0007
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