Three-compartment body composition changes in elite rugby league players during a super league season, measured by dual-energy X-ray absorptiometry

Journal of Strength and Conditioning Research
Jamie A HarleyJohn O'Hara

Abstract

This study investigated the acute changes in body composition that occur over the course of a competitive season in elite rugby league players. Twenty elite senior players from an English Super League rugby league team underwent a total-body dual-energy X-ray absorptiometry scan at 3 phases of a competitive season: preseason (February), midseason (June), and postseason (September). Body mass (BM), fat mass (FM), lean mass, percentage body fat, and bone mineral content (BMC) were reported at each phase. Between the start and midpoint of the season, BM, lean mass, FM, and body fat percentage showed no significant change (p > 0.05); however, BMC was significantly increased (+0.71%; 30.70 ± 38.00 g; p < 0.05). Between the midseason and postseason phase, BM and BMC showed no significant change (p > 0.05); however, significant changes were observed in lean mass (-1.54%; 1.19 ± 1.43 kg), FM (+4.09%; 0.57 ± 1.10 kg), and body fat percentage (+4.98%; 0.78 ± 1.09%; p < 0.05). The significant changes in body composition seen over the latter stages of the competitive season may have implications for performance capabilities at this important stage of competition. An increase in FM and decrease in lean mass may have a negative effect on the...Continue Reading

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Citations

Apr 4, 2014·Journal of Endocrinological Investigation·B CaroliG Passeri
Apr 22, 2014·Sports Medicine·Rich D JohnstonDavid G Jenkins
Feb 26, 2016·Journal of Strength and Conditioning Research·Neal W ProkopRoss E Andersen
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May 9, 2013·Journal of Clinical Densitometry : the Official Journal of the International Society for Clinical Densitometry·Nisha Nigil Haroon
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Dec 23, 2016·Journal of Sports Sciences·Robert W DaviesPhilip Jakeman
Mar 11, 2017·Journal of Sports Sciences·Ben JonesKaren Hind
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Aug 22, 2021·Physical Therapy in Sport : Official Journal of the Association of Chartered Physiotherapists in Sports Medicine·Callum J McCaskieNicolas H Hart

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