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THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS

Rivista di Medicina, Traumatologia e Psicologia dello Sport


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CASE REPORT  BODY COMPOSITION, NUTRITION


The Journal of Sports Medicine and Physical Fitness 2017 June;57(6):811-5

DOI: 10.23736/S0022-4707.16.06365-9

Copyright © 2016 EDIZIONI MINERVA MEDICA

lingua: Inglese

Body composition changes in an endurance athlete using two different training strategies

Peter FRANCIS 1, William McCORMACK 2, Aaron CASELEY 1, June COPEMAN 1, Gareth JONES 1

1 Musculoskeletal Health Research Group, School of Clinical and Applied Sciences, Leeds Beckett University, Leeds, UK; 2 Department of Physical Education and Sport Sciences, Faculty of Education and Health Sciences, University of Limerick, Limerick, Ireland


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Swimming, running and cycling are among the most popular and fastest growing sports in the world. Inherent in these sports is a desire to favorably alter body composition. Here we report a ~5.4 kg and ~5.3 kg fat tissue mass (FTM) loss in two separate interventions (12-16 weeks), in the same athlete, separated by 5 years. Whole body composition was assessed using dual X-ray absorptiometry (DXA). Dietary analysis for intervention 2 was completed using Mc Cance and Widdowson’s composition of foods. In 2010, the male athlete (23 years, weight 85 kg, height 195 cm, 18.1% body fat) had a reduction of ~5.4 kg of FTM (15.4 vs. 10.0 kg) and an increase of ~5.1 kg of lean tissue mass (LTM) following 16 weeks of moderate intensity running (213±53 min/week) and circuit training (64±46 min/week). In 2015, the same athlete (28 years, 90.6 kg, 195 cm; 18.2%) had a ~5.3 kg loss of FTM and a ~0.8 kg increase in LTM after 12 weeks, predominately (75%) non-weight bearing exercise (49% cycling, 215±88 min/week; 25% running 110±47 min/week; 19% swimming, 83±27 min/week; 7% rowing machine, 29±26 min/week). Weekday and weekend dietary intake during intervention 2 were estimated as 2560 kcal and 3240 kcal per day, respectively. This report provides support for the hypothesis that an extended period of energy deficit is required to reduce body fat levels in amateur athletes independent of the mode of exercise.


KEY WORDS: Body composition - Photon absorptiometry - Exercise - Running - Swimming - Bicycling

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Publication History

Issue published online: May 10, 2017
Article first published online: July 6, 2016
Manuscript accepted: July 4, 2016
Manuscript revised: June 10, 2016
Manuscript received: December 21, 2015

Per citare questo articolo

Francis P, McCormack W, Caseley A, Copeman J, Jones G. Body composition changes in an endurance athlete using two different training strategies. J Sports Med Phys Fitness 2017;57:811-5. DOI: 10.23736/S0022-4707.16.06365-9

Corresponding author e-mail

peter.francis@leedsbeckett.ac.uk