1. Validity and reliability of tools to measure muscle mass, strength, and physical performance in community-dwelling older people: a systematic review Bookmark Author: Mijnarends, D. M., Meijers, J. M., Halfens, R. J., ter Borg, S., Luiking, Y. C., Verlaan, S., Schoberer, D., Cruz Jentoft, A. J., van Loon, L. J., and Schols, J. M. Publication year: 2013 DOI: 10.1016/j.jamda.2012.10.009