The influence of COVID-19 on the practice of physical activity in the European Union countries Diego Álvarez-Lourido; José Luis Paniza-Prados; Antonio Álvarez-Sousa;

Photovoice versus focus groups: a comparative study of qualitative health research techniques Paloma Conde; Jesús Rivera-Navarro; Marta Gutiérrez-Sastre; Ignacio González-Salgado; Manuel Franco; María Sandín Vázquez;

Versión reducida del Minnesota Leisure Time Physical Activity Questionnaire para población general: MLTPAQ 9+2 Jessica Rial-Vázquez; Mónica Pérez-Ríos; María Isolina Santiago-Pérez; Alberto Ruano-Ravina;