Dr. Randy Kertz talks about the ergonomic benefits of Gruv Gear's DuoStrap (Part 1)
Renowned author and practitioner Dr. Randall Kertz shares his thoughts on the DuoStrap ergonomic double strap by Gruv Gear, and how this latest innovation may reduce injuries bassists and guitarists sustain.
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Check out Dr. Kertz's book "The Bassists Guide to Injury Management, Prevention and Better Health" at: http://www.drkertz.com/bassistguide.html
Learn more about the DuoStrap at: http://www.duostrap.com
Read the official press release: http://www.prweb.com/releases/gruvgea...