Article

Exercise induced muscle damage (EIMD) impairs maximal torque production which can
cause a decline in athletic performance and/or mobility. EIMD is commonly
assessed by using maximal voluntary contraction (MVC), creatine kinase (CK) and
muscle soreness. We propose as an additional technique, tensiomyography (TMG),
recently introduced to measure mechanical and muscle contractile characteristics.
The purpose of this study was to determine the validity of TMG in detecting
changes in maximal torque following EIMD. Nineteen participants performed
eccentric elbow flexions to achieve EIMD on the non- dominant arm and used the
dominant elbow flexor as a control. TMG parameters, MVC and rate of torque
development (RTD) were measured prior to EIMD and repeated for another six
consecutive days. Creatine kinase, muscle soreness and limb girth were also
measured during this period. Twenty four hours after inducing EIMD, MVC torque,
RTD and TMG maximal displacement had significantly (p<0.01) declined by 37%, 44%
and 31%, respectively. By day 6 MVC, RTD and TMG recovered to 12%, 24% and 17% of
respective pre-EIMD values. In conclusion, as hypothesised TMG maximal
displacement significantly followed other standard EIMD responses. This could
therefore be useful in detecting muscle damage from impaired muscle function and
its recovery following EIMD.
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Langue : ANGLAIS