Original paper
Biomechanical analysis of acute subdural hematoma resulting from judo, Biomedical Research (Tokyo), 35(5), 339-344, Aug. 2014
Rotational Acceleration During Head Impact Resulting from Different Judo Throwing Techniques., Neurologia medico-chirurgica (Tokyo), 54(5), 374-378, May 2014
Simple Strategy to Prevent Severe Head Trauma in Judo - Biomechanical Analysis -, Neurologia medico-chirurgica, 53(9), 580-584, Sep. 2013
Biomechanical Analysis of the Head Movements of a Person Thrown by the Judo Technique 'Seoi-nage'., Murayama Haruo;Hitosugi Masahito;Motozawa Yasuki;Ogino Masahiro;Koyama Katsuhiro, Neurologia medico-chirurgica, 60(2), 101-106, 15 Feb. 2020
Ukemi Technique Prevents the Elevation of Head Acceleration of a Person Thrown by the Judo Technique 'Osoto-gari'., Murayama Haruo;Hitosugi Masahito;Motozawa Yasuki;Ogino Masahiro;Koyama Katsuhiro, Neurologia medico-chirurgica, 60(6), 307-312, 15 Jun. 2020
Biomechanical Analysis of Serious Neck Injuries Resulting from Judo., Nakanishi Tomoyuki;Hitosugi Masahito;Murayama Haruo;Takeda Arisa;Motozawa Yasuki;Ogino Masahiro;Koyama Katsuhiro, Healthcare (Basel, Switzerland), 9(2), 16 Feb. 2021
Mastering Ukemi is Essential in Preventing Severe Head Trauma, Haruo Murayama, Masahito Hitosugi, Yasuki Motozawa, Masahiro Ogino, Katsuhiro Koyama, The Arts and Sciences of Judo, 1(2), 15-17, 01 Dec. 2021
Skilled ukemi reduces the risk of head trauma for a person thrown with a seoi-nage technique, The Arts and Sciences of Judo, 30 Jun. 2025
Murayama H, Hitosugi M, Motozawa Y, Ogino M, Koyama K, American College of Sports Medicine 67nd Annual Meeting, 27 May 2020, Poster presentation, American College of Sports Medicine 67nd Annual Meeting, San Francisco, California USA (On line), True
Preventive effect of mouthguards on head injuries in Judo, 24 Sep. 2024
Haruo Murayama, Masahito Hitosugi, Yasuki Motozawa, Masahiro Ogino, Katsuhiro Koyama, American College of Sports Medicine 72nd Annual Meeting, 27 May 2025, 27 May 2025, 30 May 2025