Background Interventions to promote physical activity (PA) among older adults can positively impact PA behaviour and other health outcomes. Measurement of PA must be valid and reliable; however, the ...

The holidays are over. The cookies and treats are all eaten. The relatives have left, and the decorations are put away. The only thing not gone is the extra pounds I gained. So I exercise, sweat and ...

The purpose of this study was to review various physical activity measures, both subjective and objective. The activity measures were then evaluated for their ability to aid in research and practice.

Despite extensive use over 40 years, physical activity questionnaires still show limited reliability and validity. Measurements have value in indicating conditions where an increase in physical ...

Physical activity is important for maintaining health in virtually all therapeutic areas and is often recognised as a sixth functional vital sign. With more than one in five US adults already using ...

Aalto University researchers are designing a brain-imaging device that uses a new type of sensor placed on the surface of a person's head. The new sensors employ quantum optics, allowing them to ...

Lupus disease complexity and variability makes accurate measurement of disease activity very challenging. Measurement of disease activity in lupus is central to clinical research and clinical trials ...