Hey guys my dad has been complaining lately that in his line of work (air compressor mechanic) that lifting things and stepping up high things have begun to really make his muscles sore. He says they've never been this sore since he was in the army haha. So I suggested he starts coming to the gym with me and he can do his own thing. Is there any types of routines that you guys suggest? I don't really know if there would be much of a difference for a young guy or an older guy in the world of lifting. Just maybe less weight but what about the types of exercises or how his routine should go about. He's 49 if that serves any purpose.