The winter swimmers self-portrait. Ice water immersion as a form of self care

von Kauppinen, Kyllikki (Autor), ... Urponen, Helka (Autor)
Erschienen in Arctic medical research, 47 (1988), 1, S. 4-12, Lit.

Epidemiology of exercise effects on sleep

von Vuori, Ilkka (Autor), ... Urponen, Helka (Autor), Hasan, Joel (Autor), Partinen, Markku (Autor)
Erschienen in Acta physiologica Scandinavica, 133 (1988), Suppl. 574, S. 3-7

Exercise habits and sleep in a middle-aged Finnish population

von Hasan, Joel (Autor), ... Urponen, Helka (Autor), Vuori, Ilkka (Autor), Partinen, Markku (Autor)
Erschienen in Acta physiologica Scandinavica, 133 (1988), Suppl. 574, S. 33-35