The following are some academic articles on the effectiveness of integrated health coaching. There are over 70 articles and ongoing research exploring and confirming the benefits of integrated health coaching on lifestyle changes and overall health improvement.
http://journals.lww.com/lww-medicalcare/Abstract/2009/01000/Health_Coaching_via_an_Internet_Portal_for_Primary.6.aspx
http://www.biomedcentral.com/1471-2458/9/456/
http://www.ingentaconnect.com/content/sbp/sbp/2003/00000031/00000003/art00005
http://www.ingentaconnect.com/content/adis/dmho/2007/00000015/00000005/art00004
http://onlinelibrary.wiley.com/doi/10.1046/j.1532-5415.2003.51068.x/abstract;jsessionid=2D05FFD0F027695584CB711308F02F89.d04t04?deniedAccessCustomisedMessage=&userIsAuthenticated=false
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2753.2009.01300.x/abstract?deniedAccessCustomisedMessage=&userIsAuthenticated=false
http://www.ajhpcontents.org/doi/abs/10.4278/ajhp.090313-LIT-101
http://www.biomedcentral.com/1471-2407/9/319/
http://jah.sagepub.com/content/17/6/697.short
http://tde.sagepub.com/content/36/4/629.short
http://www.webmd.com/balance/features/wellness-coaching-the-latest-trend-in-fitness
http://www.biomedcentral.com/1471-2458/9/456/
http://www.ingentaconnect.com/content/sbp/sbp/2003/00000031/00000003/art00005
http://www.ingentaconnect.com/content/adis/dmho/2007/00000015/00000005/art00004
http://onlinelibrary.wiley.com/doi/10.1046/j.1532-5415.2003.51068.x/abstract;jsessionid=2D05FFD0F027695584CB711308F02F89.d04t04?deniedAccessCustomisedMessage=&userIsAuthenticated=false
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2753.2009.01300.x/abstract?deniedAccessCustomisedMessage=&userIsAuthenticated=false
http://www.ajhpcontents.org/doi/abs/10.4278/ajhp.090313-LIT-101
http://www.biomedcentral.com/1471-2407/9/319/
http://jah.sagepub.com/content/17/6/697.short
http://tde.sagepub.com/content/36/4/629.short
http://www.webmd.com/balance/features/wellness-coaching-the-latest-trend-in-fitness