Bewertung: 4 von 5 Sternen
4/5
Wird geladen
JG![]()
author
Jon Giswold
Jon Giswold is a certified group exercise instructor and personal trainer who teaches in New York's most prominent fitness centers, including the Reebok Sports Club/NY. He has been...mehr sehenJon Giswold is a certified group exercise instructor and personal trainer who teaches in New York's most prominent fitness centers, including the Reebok Sports Club/NY. He has been featured in several fitness videotapes and in many national and international and magazines. He is the author of Basic Training: A Fundamental Guide to Fitness for Men.weniger sehen