Original Article
Nordic Walking May Safely Increase the Intensity of Exercise Training in Healthy Subjects and in Patients with Chronic Heart Failure
Andrzej Lejczak, Krystian Josiak, Kinga Węgrzynowska-Teodorczyk, Eliza Rudzińska, Ewa A. Jankowska, Waldemar Banasiak, Massimo F. Piepoli, Marek Woźniewski, Piotr Ponikowski
145-149