About the Authors

Aldair J. Oliveira


Affiliation Laboratory of Social Dimensions Applied to Physical Activity and Sport (LABSAFE), Department of Physical Education and Sports, Rural Federal University of Rio de Janeiro, Seropédica, Brazil

Mikael Rostila

Affiliation Centre for Health Equity Studies (CHESS), Stockholm University/Karolinska Institutet, Stockholm, Sweden

Jan Saarela

Affiliation University of Helsinki, Helsinki, Finland and Åbo Akademi University, Vasa, Finland

Claudia S. Lopes

Affiliation Department of Epidemiology, Institute of Social Medicine, Rio de Janeiro State University, Rio de Janeiro, Brazil

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AJO MR. Performed the experiments: AJO MR JS CSL. Analyzed the data: AJO MR JS CSL. Contributed reagents/materials/analysis tools: AJO MR JS CSL. Wrote the paper: AJO MR JS CSL.