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Reliability and Measurement Error of Tensiomyography to Assess Mechanical Muscle Function

A Systematic Review

Martín-Rodríguez, Saúl1; Loturco, Irineu2; Hunter, Angus M.3; Rodríguez-Ruiz, David4; Munguia-Izquierdo, Diego5

The Journal of Strength & Conditioning Research: December 2017 - Volume 31 - Issue 12 - p 3524–3536
doi: 10.1519/JSC.0000000000002250
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Martín-Rodríguez, S, Loturco, I, Hunter, AM, Rodríguez-Ruiz, D, and Munguia-Izquierdo, D. Reliability and measurement error of tensiomyography to assess mechanical muscle function: A systematic review. J Strength Cond Res 31(12): 3524–3536, 2017—Interest in studying mechanical skeletal muscle function through tensiomyography (TMG) has increased in recent years. This systematic review aimed to (a) report the reliability and measurement error of all TMG parameters (i.e., maximum radial displacement of the muscle belly [Dm], contraction time [Tc], delay time [Td], half-relaxation time [½ Tr], and sustained contraction time [Ts]) and (b) to provide critical reflection on how to perform accurate and appropriate measurements for informing clinicians, exercise professionals, and researchers. A comprehensive literature search was performed of the Pubmed, Scopus, Science Direct, and Cochrane databases up to July 2017. Eight studies were included in this systematic review. Meta-analysis could not be performed because of the low quality of the evidence of some studies evaluated. Overall, the review of the 9 studies involving 158 participants revealed high relative reliability (intraclass correlation coefficient [ICC]) for Dm (0.91–0.99); moderate-to-high ICC for Ts (0.80–0.96), Tc (0.70–0.98), and ½ Tr (0.77–0.93); and low-to-high ICC for Td (0.60–0.98), independently of the evaluated muscles. In addition, absolute reliability (coefficient of variation [CV]) was low for all TMG parameters except for ½ Tr (CV = >20%), whereas measurement error indexes were high for this parameter. In conclusion, this study indicates that 3 of the TMG parameters (Dm, Td, and Tc) are highly reliable, whereas ½ Tr demonstrate insufficient reliability, and thus should not be used in future studies.

1Official College of Graduates in Physical Education of the Canary Islands (COLEF), Las Palmas de Gran Canaria, Gran Canaria, Spain;

2NAR—Nucleus of High Performance in Sport, São Paulo, Brazil;

3Health and Exercise Sciences Research Group, University of Stirling, Stirling, United Kingdom;

4Department of Physical Education, University of Las Palmas de Gran Canaria, Gran Canaria, Spain; and

5Department of Sports and Computer Science, Section of Physical Education and Sports, Universidad Pablo de Olavide, Seville, Spain

Address correspondence to Saúl Martín-Rodríguez, saulmrguez@gmail.com.

Copyright © 2017 by the National Strength & Conditioning Association.