Text and Data Mining valid from 2019-11-01
Received: 2 June 2019
Revised: 24 June 2019
Accepted: 29 June 2019
First Online: 13 January 2020
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interests</i>. The authors declare the absence of obvious and potential conflicts of interests associated with the publication of this article.
: <i>Statement of compliance with standards of research involving humans as subjects</i>. All studies have been conducted in line with the principles of biomedical ethics formulated under the Helsinki Declaration 1964 and its subsequent amendments and approved by the local bioethical committee at the Center of Advanced Sports Technologies and National Teams (Moskomsport ) (Moscow). All participants in the study gave their voluntary informed written consent signed after informing them about potential risks an advantages, as well as about the nature of the planned study.