Donnelly JE, Blair SN, Jakicic JM, Manore MM, Rankin JW, Smith BK; American College of Sports Medicine.
American College of Sports Medicine Position Stand. Appropriate physical activity intervention strategies for weight loss and prevention of weight regain for adults. Med Sci Sports Exerc. 2009 Feb;41(2):459-71.
Kool J, Bachmann S, Oesch P, Knuesel O, Ambergen T, de Bie R, van den Brandt P. Function-centered rehabilitation increases work days in patients with nonacute nonspecific low
back pain: 1-year results from a randomized controlled trial. Archives of Physical Medicine and Rehabilitation 2007; 88 (9): 1089-1094.
Kuiper JI, Burdorf A, Verbeek JH, Frings-Dresen M, van der Beek AJ, Viikari-Juntura ER. Epidemiologic evidence on manual handling as a risk factor for back disorders: a systematic review. Int J Ind Ergon 1999;24:389-404