Proper form when spraying low to reduce back pain ?
I do comercial spray gun work at a shop and its my first time doing this kind of work. I do a lot of 5ft by 7ft acrylic sheets and it requires a lot of bending or crouching down to hit the bottoms while still moving side to side. The last 3 months, I have had no issues with it, but today I'm getting some sharper pains in my lower back by my hips and I'm wondering how I should be moving so I dont continue to hurt myself ?