1. Calibration of Self-Report Measures of Physical Activity and Sedentary Behavior. Issue 7 (July 2017) Authors: WELK, GREGORY J.; BEYLER, NICHOLAS K.; KIM, YOUNGWON; MATTHEWS, CHARLES E. Journal: Medicine and science in sports and exercise Issue: Volume 49:Issue 7(2017) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗