This protocol describes a randomized controlled trial as a method to test the effect of a video demonstration on the intra-individual difference between self-reported and accelerometer-based moderate-to-vigorous physical activity.
Voigt, L., Ullrich, A., Siewert-Markus, U., Dörr, M., John, U., Ulbricht, S. Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity. J. Vis. Exp. (145), e58997, doi:10.3791/58997 (2019).