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.

The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

Note: Articles may be assigned to more than one subject area, as a result the sum of the subject research outputs may not equal the overall research outputs. Identify research insights to guide ...

THIS book is intended by the authors for students who have already completed an elementary course of practical physics. It is not, however, a treatise on methods of physical measurement, but the ...

This panel will review the National Institute of Standards and Technology (NIST) Physical Measurement Laboratory (PML). The Panel will produce a report that addresses the study's statement of task.