Reliability of isometric and isokinetic trunk flexor strength using a functional electromechanical dynamometer - Rodriguez-Perea, A.; Chirosa Rios, L. J.; Martinez-Garcia, D.; Ulloa-Diaz, D.; Guede Rojas, F.; Jerez-Mayorga, D.; Chirosa Rios, I. J. (PeerJ, 2019)