Archives of Budo is an international peer reviewed journal publishing articles on various aspects of the sports sciences covering education and research in martial arts and combat sports, and related areas like biomechanics, kinesiology, medicine, psychology, sociology, technologies of sports equipment, research in training, selection, performance, survival, and other interdisciplinary perspectives.Archives of Budo editors endorse the principles embodied in the Helsinki Declaration and expect that all research involving humans has been performed in accordance with these principles. All human studies must have been approved by the investigator's Institutional Review Board. A copy of the relevant documentation should be included with the manuscript. Furthermore Archives of Budo follows the ICMJE's Recommendations for the Conduct, Reporting, Editing and Publication of Scholarly Work in Medical Journals.Archives of Budo provides free, immediate and permanent online access to the full text of all articles distributed under the terms of the Creative Commons Attribution Non-commercial License http://creativecommons.org/licenses/by-nc/4.0), which permits use, distribution, and reproduction in any medium, provided the original work is properly cited, the use is non-commercial and is otherwise in compliance with the license.