Second, once you've switched legs and brought your other leg forward, you will be starting from the bottom, which gives you absolutely zero elastic tension in the muscles. (ironmanmagazine.com)
From here, you're starting the exercise from a TOTAL dead stop with ZERO elastic tension in the muscles to help. (thebestexercises.com)
PostureNOW (Patent Pending) is two comfortable neoprene armbands, connected by a flexible elastic tension band. (posturenow.com)