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Tsuboi, H., Nishimura, Y., Sakata, T., Ohko, H., Tanina, H., Kouda, K., Nakamura, T., Umezu, Y. and Tajima, F. (2013) Age-Related Sex Differences in Erector Spinae Muscle Endurance Using Surface Electromyographic Power Spectral Analysis in Healthy Humans. The Spine Journal, 13, 1928-1933.
http://www.sciencedirect.com/science/article/pii/S1529943013007468
https://doi.org/10.1016/j.spinee.2013.06.060

has been cited by the following article:

• TITLE: Reliability of Power Spectral Analysis of Surface Electromyogram Recorded during Sustained Vastus Medialis Isometric Contraction in Assessment of Muscle Fatigability

  AUTHORS: Yuta Minoshima, Yukihide Nishimura, Hiroyuki Tsuboi, Hideyuki Satou, Yoshi-ichiro Kamijo, Hideki Arakawa, Yuichi Umezu, Fumihiro Tajima

  KEYWORDS: Vastus Medialis Oblique, Vastus Medialis Long, Muscle Fatigue, Electromyography, Isometric Contraction

  JOURNAL NAME: Open Journal of Therapy and Rehabilitation, Vol.5 No.2, May 10, 2017

  ABSTRACT: The aim of this study was to determine the within-day and between-days reliability of surface electromyographic (EMG) power spectral analysis in assessing fatigability of the vastus medialis (VM) muscle during knee and hip flexion under constant load application. The subjects were 13 healthy adult men free of knee abnormalities. Surface EMG was recorded from vastus medialis obliquus (VMO) and vastus medialis longus (VML) during sustained isometric contractions at 60% of maximal voluntary contraction until exhaustion on the leg press machine (static leg press test). Linear regression analysis was applied to median frequency (MF) time series to calculate initial MF and MF slope. For VMO and VML, the initial MF showed moderate to high reliability, while the MF slope showed high reliability (Intraclass correlation coefficient (ICC) = initial MF: 0.63 - 0.92, MF slope: 0.70 - 0.86). The results demonstrated that spectral analysis of surface EMG recording during isometric VM muscle contraction has high within-day and between-days reliability in the assessment of fatigability of the VMO and VML.