Used to be blue worker but now temporary assigned white collar job already for two weeks. From clock in seat till clock out except lunch time but then lunch also seat also. Now i know how white collar feel seating whole day. Not as relax as it look.

Any solutions. Didn't know seat only also can back. I go gym also pain is muscle sore pain but this doesn't feel like muscle pain. Chair is just normal mesh office chair. Cannot change since its common office