About the Authors

Espen Tønnessen

espen.tonnessen@olympiatoppen.no

Affiliation Norwegian Olympic Federation, Oslo, Norway

Ida Siobhan Svendsen

Affiliation School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom

Inge Christoffer Olsen

Affiliation Diakonhjemmet, Oslo, Norway

Atle Guttormsen

Affiliation University of Life Sciences, Ås, Norway

Thomas Haugen

Affiliation Norwegian Olympic Federation, Oslo, Norway

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ET TH AG. Performed the experiments: ET TH ISS. Analyzed the data: TH ISS ICO. Contributed reagents/materials/analysis tools: ICO ISS. Wrote the paper: ET TH ISS AG ICO.