Ryul Kim¹, Seohee Choi², Nyeonju Kang³, Kiwon Park⁴, Heehyun Shin³, Hanall Lee³, Hyungwoo Lee³, Jin-Sun Jun⁵, Beomseok Jeon⁶, Kyeongho Byun³

¹Department of Neurology, Seoul National University-Seoul Metropolitan Government Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea (the Republic of)

²Department of Neurology, Inha University Hospital, Incheon, Korea (the Republic of)

³Division of Sport Science, Incheon National University, Incheon, Korea (the Republic of)

⁴Department of Biomedical and Robotics Engineering, Incheon National University, Incheon, Korea (the Republic of)

⁵Department of Neurology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea (the Republic of)

⁶Department of Neurology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea (the Republic of)

Correspondence to Dr Ryul Kim, Professor Kyeongho Byun