Multiple rugby players have moved to the NFL over the years, but few have been a huge success. This is likely due to the very specific requirements for different positions. In rugby, players need to be versatile, but in American football, players will train their specific roles from a young...
The IRB regulation prohibits rugby cleats with studs longer than 21 mm. In addition, cleats must have no sharp edges. The National Collegiate Athletic Association (NCAA), which governs college football, prohibits cleats greater than 1/2-inch in length. Cleat lengths in the National Football Leagu...
Mann JB, Ivey PJ, Bird S, Stoner JD, Brechue WF, Mayhew JL. Reliability and smallest worthwhile difference of the NFL-225 test in NCAA Division I football players. J Strength Cond Res 28:1427-1432, 2014.Mann, JB, Ivey, PJ, Bird, S, Stoner, JD, Brechue, WF, and Mayhew, JL. ...