NAUMANN · tapa dura · ISBN 4050847007843
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«Espalda Sana» is Robert Polster’s training method to practice at home, published by Naumann in hardcover and in Spanish.
The work presents a training method focused on the back, with exercises to strengthen and care for it from home. It includes a DVD with exercises that complements the text and allows the program to be practiced by following the video images.
Intended for people who want to take care of their back and stay active with an exercise routine practiced at home.
