About the Authors

Erik Madssen

Affiliations K.G. Jebsen Center of Exercise in Medicine, Department of Circulation and Medical Imaging, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway, Department of Pulmonary Medicine, St. Olavs Hospital, Trondheim, Norway

Ingerid Arbo

Affiliation K.G. Jebsen Center of Exercise in Medicine, Department of Circulation and Medical Imaging, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway

Ingrid Granøien

Affiliation Ålesund Hospital, Ålesund, Norway

Liv Walderhaug

Affiliation Ålesund Hospital, Ålesund, Norway

Trine Moholdt

trine.moholdt@ntnu.no

Affiliations K.G. Jebsen Center of Exercise in Medicine, Department of Circulation and Medical Imaging, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway, Women's Clinic, St. Olavs Hospital, Trondheim, Norway

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TM EM IA. Performed the experiments: TM EM IA LW IG. Analyzed the data: TM EM. Contributed reagents/materials/analysis tools: IG LW IA TM EM. Wrote the paper: EM TM. Collected all data at Åelsund Hospital: IG LW.