He is an on-site engineer for waste management facilities, but he said he does more work outdoors at home(not as much now due to it being winter). He does alot of lifting stone ,twisting,bending, digging etc...his posture we are working on although I have seen worse. He has lumbar issues as far as a herniated L3-L4 and the surrounding muscles are all tight. Hip ROM is less than average as far as extension (maybe 20 degrees). I work extra on the the erectors and QL's,glutes,psoas (although I am not real good at this I feel),glutes, piriformis and all thigh muscles. I have only worked on him a few times but would like to try to do more for him. He always feels better afterwards but this problem returns.