Publications by authors named "Mark A Jeffreys"
Article Synopsis
- The study examines how relative age effects (RAEs), which favor older players in youth basketball, affect selection into various British basketball teams and their transition to senior teams.
- It involved 450 male and 314 female participants, analyzing three groups: Regional Talent Hubs, England National Youth Teams, and England National Senior Teams, focusing on birth quarter distribution.
- Results showed significant RAEs for males in both the Regional Talent Hubs and National Youth Teams, while females only showed significant effects in the Hubs, highlighting a need for fairer structures in the talent pathway.
The relative age effect (RAE) is almost pervasive throughout youth sports, whereby relatively older athletes are consistently overrepresented compared to their relatively younger peers. Although researchers regularly cite the need for sports programs to incorporate strategies to moderate the RAE, organizational structures often continue to adopt a one-dimensional (bi)annual-age group approach. In an effort to combat this issue, England Squash implemented a "birthday-banding" strategy in its talent pathway, whereby young athletes move up to their next age group on their birthday, with the aim to remove particular selection time points and fixed chronological bandings.
View Article and Find Full Text PDFJeffreys, MA, De Ste Croix, MBA, Lloyd, RS, Oliver, JL, and Hughes, JD. The effect of varying plyometric volume on stretch-shortening cycle capability in collegiate male rugby players. J Strength Cond Res 33(1): 139-145, 2019-The purpose of this study was to identify the effectiveness of low and high volume plyometric loads on developing stretch-shortening cycle capability in collegiate rugby players.
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