NAUMANN · tapa dura · ISBN 4050847007843
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«Espalda Sana» is Robert Polster’s training method to practise at home, published by Naumann in hardback 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 programme to be practised by following the video images.
Intended for people who want to take care of their back and stay active with an exercise routine practised at home.
