Leg Extensions are a very popular isolation exercise for your legs. Done right, this machine can be absolute torture! Be sure to adjust the machine properly, have your back flat against the pad and you knees even with the edge of the seat and the pivot point of the machine. Position the pads on the lower part of your shins, closer to your shoes. Push up hard - squeeze your quads as hard as possible, then lower the weight slowly, resisting with your quads - then feel the burn!
RailPictures.Net Photo: NS 6322 Norfolk Southern EMD SD40E at Cassandra, Pennsylvania by Jason Boring. With a ton of coal passing over, another heavy crude oil train follows up the hill behind them as helpers push the train up the grade.