1.Look up when on the treadmill. Avoid looking down while running on a treadmill. You may end up tripping or straining your neck. Focus your eyes on something at eye level like the display monitor.

2. Avoid leaning on the handlebars of the stair climber or elliptical machine. Stand with your chest high and your head and spine aligned. If you are on a machine with handles, hold them so your hands are below shoulder level. 

3. Use foot straps when cycling. This will help you push and pull the pedals properly. Your lower body really can benefit from the pulling up on the pedals motion. When you are pushing with your left foot, your right should be pulling up.