THE SOUTH AFRICAN JOURNAL OF SPORTS MEDICINE The Editor The South African Journal of Sports Medicine PO Box 115, Newlands, 7725 Tel: (021) 650-4558 Fax: (021) 686-7530 E-mail: Mike.Lambert@uct.ac.za Article submissions: www.sajsm.org.za The views expressed in individual articles and advertising material are the personal views of the authors and are not necessarily shared by the editors, the advertisers or the publishers. No articles may be reproduced without the written consent of the publishers. Plagiarism is defined as the use of another’s work, words or ideas without attribution or permission, and representation of them as one’s own original work. Manuscripts containing plagiarism will not be considered for publication in the SAJSM. For more information on our plagiarism policy, please visit http://www.sajsm.org.za/index.php/sajsm/about/ editorialPolicies Editor Prof. Mike Lambert University of Cape Town Editorial board Dr Kerith Aginsky University of the Witwatersrand Dr Theresa Burgess University of Cape Town Dr Richard de Villiers Drs Van Wageningen and Partners, Somerset West Dr Lize Havemann-Nel North West University Dr Christa Janse van Rensburg University of Pretoria Dr Louis Holtzhausen University of the Free State Prof. Frank Marino Charles Sturt University, Australia Dr Babette Pluim Royal Netherlands Lawn Tennis Association, The Netherlands Publisher Health and Medical Publishing Group 28 Main Road, Rondebosch, 7700 Private Bag X1, Pinelands, 7430 Tel: (021) 681-7200 HMPG Editor-in-Chief Janet Seggie Consulting Editor JP de V van Niekerk Deputy Editor Bridget Farham Editorial Systems Manager Melissa Raemaekers Scientific Editor Ingrid Nye Technical Editors Emma Buchanan, Paula van der Bijl Art Director Brent Meder DTP/Layout Anelia du Plessis, Carl Sampson Production assistant Neesha Hassan Head of publishing Robert Arendse Head of Sales and Marketing Diane Smith | Tel: (012) 481-2069 Repro & printing Creda Communications THE SOUTH AFRICAN JOURNAL OF SPORTS MEDICINE CONTENTS EDITORIAL 34 First principles: Reasons to always go back M Lambert ORIGINAL RESEARCH 35 Body composition and habitual and match-day dietary intake of the FNB Maties Varsity Cup rugby players S Potgieter, J Visser, I Croukamp, M Markides, J Nascimento, K Scott 43 Effect of caffeine ingestion on fluid balance during exercise in the heat and during recovery Y Zhang, S J Carter, R E Schumacker, Y H Neggers, M D Curtner-Smith, M T Richardson, J M Green, P A Bishop 48 Associations of objectively and subjectively measured physical activity with trabecular and cortical bone properties in prepubertal children R Meiring, J A McVeigh 55 Obesity in 7 - 10-year-old children in urban primary schools in Port Elizabeth J McKersie, M L Baard REVIEW 59 Dietary supplements containing prohibited substances: A review (Part 1) P van der Bijl CASE REPORT 62 Chronic exertional compartment syndrome in the forearm of a rower P Volcke, J H Kirby, P L Viviers, J T Viljoen 64 CPD QUESTIONNAIRE VOLUME 26 | NUMBER 2 | JUNE 2014 mailto:Mike.Lambert@uct.ac.za http://www.sajsm.org.za http://www.sajsm.org.za/index.php/sajsm/about/