Hacker News new | past | comments | ask | show | jobs | submit login

The real danger with your spine is rotation under load. So, picking up something heavy, then rotating your torso instead of turning your entire body.

TBH, you probably won't hurt your spine by curling your back. Mostly it's just a poor way to transmit force between the floor and whatever load you're carrying. You could hurt the muscles involved in making your back erect, though.

Guidelines | FAQ | Support | API | Security | Lists | Bookmarklet | Legal | Apply to YC | Contact