REPEATABILITY OF MECHANICAL MUSCLE ACTIVITY MEASUREMENTS USING A MUSCLE CONTRACTION (MC) SENSOR: TIME-SERIES AND DISCRETE VARIABLE ANALYSIS OF THE VASTUS MEDIALIS

  • Aljaž Merčun Department of Orthopedic Surgery, University Medical Centre Ljubljana, Slovenia
  • Matej Drobnič Department of Orthopedic Surgery, University Medical Centre Ljubljana, Slovenia
  • Elijan Mastnak TMG-BMC, Ljubljana, Slovenia
  • Jan Žumer TMG-BMC, Ljubljana, Slovenia
  • Srđan Đorđević TMG-BMC, Ljubljana, Slovenia
Keywords: MC sensor, muscle activity, repeatability, intraclass correlation, cross-correlation

Abstract

The primary objective of this study was to provide empirical evidence of the repeatability of the muscle contraction (MC) sensor signal and the associated measurement methodology based on a discrete covariate analysis. Despite the growing interest in this technology, the repeatability of MC sensor measurements across different environments and applications has not yet been systematically investigated, which is essential for establishing the reliability and practical applicability of these sensors. Therefore, this study presents a comprehensive repeatability analysis of MC sensor measurements obtained from the vastus medialis muscle of the thigh. This study provides strong evidence for the repeatability of muscle contraction (MC) sensor signals and the associated thigh muscle measurement methodology. Furthermore, the results highlight the potential of MC sensor technology for real-time investigation of mechanical muscle activity, offering a promising alternative to existing measurement techniques.

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Published
2026-04-09
How to Cite
1.
Merčun A, Drobnič M, Mastnak E, Žumer J, Đorđević S. REPEATABILITY OF MECHANICAL MUSCLE ACTIVITY MEASUREMENTS USING A MUSCLE CONTRACTION (MC) SENSOR: TIME-SERIES AND DISCRETE VARIABLE ANALYSIS OF THE VASTUS MEDIALIS. MatTech [Internet]. 2026Apr.9 [cited 2026Jul.16];60(2):229–233. Available from: https://mater-tehnol.si/index.php/MatTech/article/view/1592