1. Department of Internal Medicine, Poznan University of Medical Sciences, 60-786 Poznan, Poland
2. University Centre for Sports and Medical Studies, Poznan University of Medical Sciences, 60-802 Poznan, Poland
3. Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 60-355 Poznan, Poland
4. Department of Cardiology—Intensive Therapy, Poznan University of Medical Sciences, 60-355 Poznan, Poland
5. Institute of Pedagogy, University of Zielona Gora, 65-417 Zielona Gora, Poland