HABENICHT, R. - ZEMKOVÁ, Erika - HIRJAKOVÁ, Zuzana. Towards developing biomarkers that early detect the risk of sacopenia: age-specific differences of the surface electromyographic representations during a submaximal cyclic back extension exercise. In Slovak journal of health sciences. ISSN 1338-161X. Trnava. Piešťany : Univerzita sv. Cyrila a Metoda v Trnave : Inštitút fyzioterapie, balneológie a liečebnej rehabilitácie UCM, 2017, 2017, roč. 8, č. 2, s. 104-105.