After a long walk with a back pack , and then after leaning over something for a while, my back just collapses folds over, is that normal?

[Ripped_Wanna_Be]

It never used to happen to me

My lower back is obviously used to support the back pack along with my abs (not that heavy pack)

Then if I also lean over something for a while its again my back supporting me

I presume its nothing other than ordinary muscular failure? Like holding weight out with your arm for time like a paint can?

Its just odd that it never happened younger or about 3 years ago

I havnt been able to get to a gym to use real weights but ive strengthened it with boxes etc

 

[RockyBuilder]

Yeah that can happen. Sounds like your lower back muscles just getting fatigued. Walking with a backpack and then leaning forward keeps the same muscles working the whole time, so they kinda give out after a while.

Prob just lower back/core endurance not being as strong as before. Some planks or back extensions could help. If there’s pain or numbness tho, better get it checked.