male martial artist neck stretch upwards, full body

active artist arts asian athlete back background body combat defense doing dojo exercise face fight fighter fitness flexibility full gym head healthy instruction isolated jitsu jiu judo karate kimono kung kwon length lifestyle looking male man martial master move muscle neck people person physical portrait power practice push robe see self shot sky sport standing stiffness stretch stretching student studio tae taekwondo training turning uniform upward upwards warm white workout young