I work out 2-3 times per week, usually intensive weight lifting, bench, pecks, shoulders, curls, etc... My question is this: When doing lat pulldowns, my chest shudders after I pass my nose. It doesn't seem to matter how much weight is on, (anywhere from 75lbs on up). When I pull down to the back of my neck, it's smooth. Is there any explanation for this. It doesn't happen on any other workouts...
