배근력 5분 정복 (소방체력 / 체대입시)

Those preparing for the firefighter physical fitness test are asking a lot about back strength (of course, it's also a subject for physical education college entrance exams). After a two-person firefighter physical fitness lesson, I filmed a short video about back strength. Back strength is often a problem where people don't use their strength effectively. Please practice properly and become an amazing firefighter. Please watch over me. Hehe. *Reference: Back Strength One-Point Side Posture:    • Video   ▶ Collaboration Inquiries: [email protected] ▶ KungTube Channel: @koong88 ▶ Instagram - koong0208