큰 도움 됐슴돠!!!

엉덩이를 뒤로 뺀다고 생각하고 한번 진행해봐요..!!

Think of using only your abdominal muscles while completely relaxing your legs and hanging.

If your back hurts, don't do decline. Start with regular crunches first. Your back will hurt.

Press it tightly against the floor and make sure it doesn't lift or bend, Ha Se-young.