Tensiomyography
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Tensiomyography ([1], TMG) stands for biomechanical method for skeletal muscles' contractile parameter detection. TMG was introduced in 1990s as a method for measuring muscle tone by profesor Vojko Valenčič at Faculty of electrical engineering, University of Ljubljana, Slovenia. The method bears a resemblance to mechanomyographical (MMG) and also to intramuscular pressure detecting methods. TMG method rely on detecting muscle belly thickening, muscle fibre recruitment and pressure bulk wave as a result of changes in muscle fibre geometry and in intramuscular pressure. Single electrical simulus provokes mechanical twitch response of skeletal muscle being highly repeatable, selective and of high signal to noise ratio.
 Figure: Principle of the TMG method |
From TMG response five contractile parameters are calculated i.e. Delay time (Td), Contraction time (Tc), Sustain time (Ts), Half relaxation time (Tr) and Maximal displacement (Dm). Each of the describing different skeletal muscle characteristics from nervous to tendon and contractile subsystems.
