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Although clinical gait speed may indicate health and well-being in older adults, there is a lack of studies comparing clinical tests with ambulatory gait speed with regard to several health outcomes.

•Time spent by parents watching television was positively associated with screen-based sedentary behavior in boys and girls.•Coparticipation with parents and siblings in physical activity was negatively related with screen-based sedentary behavior in boys and girls, respectively.•Coparticipation with friends in playing videogames (in boys) and in surfing the Internet (in girls) was positively associated with screen-based sedentary behavior and negatively related with educational-based sedentary behavior.•Coparticipation with friends in physical activity was negatively related with accelerometer-based sedentary behavior and screen-based sedentary behavior both in both boys and girls.

La actividad física y los comportamientos inactivos poseen un efecto incuestionable sobre el estado de salud. En la población mayor, su estudio es de especial interés dada la relevancia que poseen sobre la morbimortalidad.