Why is lifting items “with your back” dangerous? Why can’t back muscles be strengthened?
In: 17
It’s not a matter of strength, but leverage.
The muscles in your back attach to the spine basically running parallel to the spine, and onto those little wings in the vertebrae.
Lifting a 50lb box out at arms length and lifting wth your back puts nearly 800lbs of force on your spine due to the ‘leverage’.
Stronger muscles don’t really fix this. The bones and joints (disks etc) that make up the spine can only take so much.
To fix the issue you need even stronger materials for the spine and joints, and changing the actual geometry of the muscle attachments.
Latest Answers