SAJSM CONTENTS.indd 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 Carl Sampson Production assistant Bronlyne Granger Head of publishing Robert Arendse Head of Sales and Marketing Diane Smith | Tel: (012) 481-2069 Repro & printing Creda Communications VOLUME 26 | NUMBER 3 | OCTOBER 2014 THE SOUTH AFRICAN JOURNAL OF SPORTS MEDICINE CONTENTS EDITORIAL 67 Healthy Active Kids South Africa: How do we score? M Lambert ORIGINAL RESEARCH 69 Radiological changes among artistic gymnasts in Gauteng Province A Geldenhuys-Koolen, D Constantinou, Y Coopoo 73 Comparison of the e�ect of semi-rigid ankle bracing on performance among injured v. non-injured adolescent female hockey players T J Ellapen, N Acampora, S Dawson, J Arling, C van Niekerk, H J van Heerden 77 Steps that count: Pedometer-measured physical activity, self- reported physical activity and current physical guidelines – how do they relate? J D Pillay, T L Kolbe-Alexander, K I Proper, S A Tomaz, W van Mechelen, E V Lambert 81 Doping in sport: Attitudes, beliefs and knowledge of competitive high school athletes in Gauteng Province K Nolte, B J M Steyn, P E Krüger, L Fletcher REVIEW 87 Dietary supplements containing prohibited substances: A review (Part 2) P van der Bijl COMMENTARY 91 Abrasion injuries on arti�cial turf: A real risk or not? D M Twomey, L A Petrass, P R Fleming CASE REPORT 93 A case of cyclist’s nodule in a female patient N Z Makhanya, M Velleman, F E Suleman 96 CPD QUESTIONNAIRE