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Muscle‐related differences in mechanomyography–force relationships are model‐dependent
Author(s) -
Cooper Michael A.,
Herda Trent J.
Publication year - 2014
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.23896
Subject(s) - isometric exercise , polynomial regression , mathematics , polynomial , regression analysis , regression , dorsum , medicine , anatomy , statistics , mathematical analysis
: In this study we examined the mechanomyographic amplitude (MMG RMS )–force relationships with log‐transform and polynomial regression models for the vastus lateralis (VL), rectus femoris (RF), and first dorsal interosseous (FDI) muscles. Methods : Twelve healthy (age 23 ± 3 years) men performed isometric ramp contractions of the leg extensors and index finger from 10% to 80% of their maximal voluntary contraction (MVC) with MMG sensors positioned on the VL, RF, and FDI. Log‐transform and polynomial regression models were fitted to the relationships. Results : There were differences for the a terms (intercepts) and b terms (slopes) from the log‐transform model between the FDI, VL, and RF; however, there were no consistent differences identified with the polynomial regression models. Conclusions : The log‐transform model quantified differences in the patterns of responses between the FDI and the leg extensors, but polynomial regression could not distinguish such differences. Muscle Nerve 49 : 202–208, 2014