by Ko, Sung-Sik, Chung, Jae-Soon, So, Wi-Young
Published in Journal of Physical Therapy Science (2015)

by Sang-Won Seo, Sung-Sik Ko, Keun-Ok An
Published in Exercise science (Seoul, Korea) (01.02.2021)

by Kim, Hye-Yeong, An, Keun-Ok, Ko, Sung-Sik
Published in The Asian journal of kinesiology (31.01.2022)

by 고성식, 변재문
Published in The Asian journal of kinesiology (30.01.2014)

by Lee, Hae sung, Ko, Sung-Sik, An, Keun-Ok
Published in The Asian journal of kinesiology (31.07.2019)

by 유건성, 고성식
Published in The Asian journal of kinesiology (30.10.2012)

by Ko, Sung-Sik, An, Keun-Ok, Lee, Sang-Hyoun
Published in The Asian journal of kinesiology (31.07.2018)

by 이상호, 고성식, 김기홍
Published in The Asian journal of kinesiology (30.07.2013)

by Kim, Ki-Hong, Kim, Byung-Kwan, Ko, Sung-Sik, Yang, Chun-Ho
Published in Research journal of pharmacy and technology (01.07.2017)

by Kim, Minji, An, Keun-Ok, Ko, Sung-Sik
Published in The Asian journal of kinesiology (31.10.2024)

by Seo, Sang-Won, Ko, Sung-Sik, An, Keun-Ok
Published in Exercise science (Seoul, Korea) (01.02.2021)

by LEE KYU-HA,JUNG SUNG-HUN,HONG DAE-SIK,KO EUN-SEOK,CHO JAE-HEE
Year of Publication 02.08.2006

by KO SUNG SIK, KIM BONG KEUN, KANG BYUNG WOOK, HWANG SUNG LOK, LEE KYUNG HAENG
Year of Publication 09.06.2021

by LEE, KYUNG HAENG, KANG, BYUNG WOOK, KO, SUNG SIK, HWANG, SEONG LOK
Year of Publication 08.10.2010

by KO SUNG-SIK, KO YONG-SIK
Year of Publication 18.11.1989