David Yamane, Keith A. Roberts (2012). Religion in Sociological Perspective. Pine Forge Press. Consultado el 1 de agosto de 2011. «Muscular Christianity's main focus was to address the concerns of boys directly, not abstractly, so that they could apply religion to their lives. The idea did not catch on quickly in the United States, but over time it has become one of the most notable tools employed in Evangelical Protestant outreach ministries.»
Alister E. McGrath (2008). Christianity's Dangerous Idea. HarperOne. Consultado el 1 de agosto de 2011. «Nor is sport a purely Protestant concern: Catholicism can equally well be said to promote muscular Christianity, at least to some extent, through the athletic programs of such leading schools as the University of Notre Dame in Indiana.»
Michael S. Kimmel; Amy Aronson (2004). Men and Masculinities: a Social, Cultural, and Historical Encyclopædia, Volume 1. ABC-CLIO. Consultado el 1 de agosto de 2011. «As neo-orthodoxy arose in the mainline Protestant churches, Muscular Christianity declined there. It did not, however, disappear from American landscape, because it found some new sponsors. In the early 2000s these include the Catholic Church and various rightward-leaning Protestant groups. The Catholic Church promotes Muscular Christianity in the athletic programs of schools such as Notre Dame, as do evangelical Protestant groups such as Promise Keepers, Athletes in Action, and the Fellowship of Christian Athletes.»
«News of the Week». The Spectator34 (1702): 124. 9 de febrero de 1861. Consultado el 30 de enero de 2012.
«Argumentum Baculinum». The Saturday Review of Politics, Literature, Science and Art11 (276): 141-142. 9 de febrero de 1861. Consultado el 30 de enero de 2012.
Christine Thomasos (2012). «Tim Tebow Brings In a New Wave of Christian Athleticism». The Christian Post. «Tebow inspired a new term by ESPN, known as “muscular Christianity.” The QB showcases his faith by wearing bible verses on his face, tweeting scriptures and publicly admitting his love for Jesus Christ, while drawing fans’ attention on the football field.»
Mary Jane Dunlap (13 de marzo de 2012). «KU professor researching Naismith, religion and basketball». Kansas University. Archivado desde el original el 29 de octubre de 2012. Consultado el 11 de octubre de 2019. «“Less well-known is that his game also was meant to help build Christian character and to inculcate certain values of the muscular Christian movement.” Although times have changed, Zogry sees analogies between the beliefs and activities of 19th-century sports figures such as James Naismith and Amos Alonzo Stagg, a Yale divinity student who pioneered football coaching, and those of 21st-century athletes such as Tim Tebow and Jeremy Lin.»
Mary Jane Dunlap (13 de marzo de 2012). «KU professor researching Naismith, religion and basketball». Kansas University. Archivado desde el original el 29 de octubre de 2012. Consultado el 11 de octubre de 2019. «“Less well-known is that his game also was meant to help build Christian character and to inculcate certain values of the muscular Christian movement.” Although times have changed, Zogry sees analogies between the beliefs and activities of 19th-century sports figures such as James Naismith and Amos Alonzo Stagg, a Yale divinity student who pioneered football coaching, and those of 21st-century athletes such as Tim Tebow and Jeremy Lin.»
