About the Authors

Dominique D. Gagnon

dominique.gagnon@oulu.fi

Affiliations Institute of Biomedicine, Department of Physiology and Biocenter of Oulu, University of Oulu, Oulu, Finland, Department of Biology of Physical Activity, University of Jyväskylä, Jyväskylä, Finland

Sheila S. Gagnon

Affiliation Department of Health and Rehabilitation Sciences, University of Western Ontario, London, Canada

Hannu Rintamäki

Affiliations Institute of Biomedicine, Department of Physiology and Biocenter of Oulu, University of Oulu, Oulu, Finland, Finnish Institute of Occupational Health, Oulu, Finland

Timo Törmäkangas

Affiliation Department of Health Sciences, University of Jyväskylä, Jyväskylä, Finland

Katri Puukka

Affiliation NordLab Oulu, Oulu University Hospital and Department of Clinical Chemistry, University of Oulu, Oulu, Finland

Karl-Heinz Herzig

Affiliations Institute of Biomedicine, Department of Physiology and Biocenter of Oulu, University of Oulu, Oulu, Finland, Medical Research Center Oulu and Oulu University Hospital, Oulu, Finland

Heikki Kyröläinen

Affiliation Department of Biology of Physical Activity, University of Jyväskylä, Jyväskylä, Finland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DDG HR TT KHH HK. Performed the experiments: DDG SSG KP KHH. Analyzed the data: DDG SSG TT. Contributed reagents/materials/analysis tools: DDG KP KHH. Wrote the paper: DDG SSG HR TT KP KHH HK.