Originally Posted by
kmac27
I don't believe those exercises will work. I am a weight lifter and i'm 20 and still had back problems when carrying a backpack!! In all honesty if you really want to save your back then use panniers. You will feel so much better if you get them. Backpacks are just too hard on the back.
Exercises are still good, core-strength is good. But don't tax it w/ a backpack or shoulderbag, do the exercises *and* get a rack and panniers or milkcrate.