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Physiologische Anpassungen des Herz-Kreislauf-Systems an körperliche Belastung

Chapter

Auszug

Körperliche Belastung erfordert eine Zunahme der Durchblutung, insbesondere der arbeitenden Muskulatur, da der Sauerstoffbedarf ansteigt. In Ruhe verbraucht der menschliche Organismus ca. 3,5 ml/min · kg Sauerstoff entsprechend 1 MET (metabolisches Äquivalent). Unter Belastung steigt die Sauerstoffaufnahme linear zur Intensität an. Im Bereich der maximalen Intensität flacht die Kurve der Sauerstoffaufnahme ab [33]. Dieses Phänomen des „levelling off“ gilt auch als Ausbelastungskriterium für die Ergometrie.

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Copyright information

© Steinkopff Verlag Darmstadt 2007

Authors and Affiliations

  1. 1.Institut für Sport- und PräventivmedizinUniversität des SaarlandesSaarbrücken

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