General

1. 기구없이 등운동 끝내기(no equipment) - YouTube

   https://www.youtube.com/watch?v=xQVQn6l6Iu4&t=817s

2. 복근만들기 30일 챌린지 2탄 (abs workout challenge 30days) - YouTube

   https://www.youtube.com/watch?v=oqjC15Ew20A&t=294s