Martín-Rodríguez from College of Graduates in Physical Education of the Canary Islands and his colegues published “Reliability and Measurement Error of Tensiomyography to Assess Mechanical Muscle Function: A Systematic Review” in Journal of Strength and Conditioning Research.

The conclusion tells it all:

“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”

Full article: https://www.ncbi.nlm.nih.gov/pubmed/28930871