Copyright © 2014 by the American College of Sports Medicine. Unauthorized reproduction of this article is prohibited. . . . Published ahead of Print Muscle Inactivity and Activity Patterns after Sedentary-Time Targeted RCT Arto J. Pesola 1 , Arto Laukkanen 1,3 , Piia Haakana 1 , Marko Havu 1 , Arja Sääkslahti 3 , Sarianna Sipilä 2 , and Taija Finni 1 1 Neuromuscular Research Center, Department of Biology of Physical Activity; 2 Gerontology Research Center, Department of Health Sciences; 3 Department of Sport Sciences, University of Jyväskylä, Finland Accepted for Publication: 5 March 2014 Medicine & Science in Sports & Exercise® Published ahead of Print contains articles in unedited manuscript form that have been peer reviewed and accepted for publication. This manuscript will undergo copyediting, page composition, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered that could affect the content. Copyright © 2014 American College of Sports Medicine ACCEPTED