-Bungee Physio. CEO

-Physiotherapist. South Korea

-PNF therapist. IPNFA

-Barefoot training specialist.EBFA. USA

-Vice president. Jeonbuk    PNFA

-Cheif of rehabilitation center. CHA    hospital.  Gunsan

-Course for FO 1 (functional orthopedic 1). 

  Berkly uiv. CA. USA(2008)

-Graduated PNF school. kaiser permanent     hospital.vallejo. CA. USA(2007~8)

-Graduated post graduate uni.  for rehabilitation science. Jeonju(2016)