1. True (A) or false (B) – click on the correct answer: Only 20% of the schoolboys in Johannesburg who were surveyed believed that the use of ‘performance-enhanc- ing substances’ was increasing among their peers. 2. True (A) or false (B) – click on the correct answer: According to a survey of schoolboys, most of the in- formation about performance-enhancing substances is obtained from the internet. 3. True (A) or false (B) – click on the correct answer: The South African Institute for Drug-Free Sport (SAIDS) is one of the many signatories that complies with the prohibited list of substances of the World Anti-Doping Agency (WADA). 4. True (A) or false (B) – click on the correct answer: ‘The pressure to perform in sport’ was the reason given by schoolboys when they were asked why they used performance-enhancing substances. 5. True (A) or false (B) – click on the correct answer: The Commonwealth Games will be held in Delhi (India) in 2010. 6. True (A) or false (B) – click on the correct answer: According to a forecasting study, South Africa will get up to 5 gold medals and 62 medals in total at the 2010 Commonwealth Games. 7. True (A) or false (B) – click on the correct answer: Athletics and swimming accounted for 50% of all med- als won by South Africa in the Commonwealth Games in Melbourne 2006. 8. True (A) or false (B) – click on the correct answer: The magnitude of confidence intervals around calcu- lated injury rates will be artificially narrow if recurrent injuries are not considered in the analysis. 9. True (A) or false (B) – click on the correct answer: Genetic factors have been identified as intrinsic risk factors in chronic Achilles tendinopathy. 10. True (A) or false (B) – click on the correct answer: Studies investigating the interaction between genetic variables and injury do not need to consider age in their research design. 11. True (A) or false (B) – click on the correct answer: Sternal stress fractures are common injuries in young gymnasts. 12. True (A) or false (B) – click on the correct answer: Forty-five per cent of all stress fractures in gymnasts involve the pars interarticularis, because of consider- able stress on the lower back as a result of repetitive flexion, hyperextension, rotation and compressive load- ing of the spine on landings. 13. True (A) or false (B) – click on the correct answer: The majority of stress fractures in gymnasts occur dur- ing competition, rather than during practice. 14. True (A) or false (B) – click on the correct answer: In order to incur health benefits, it is more important to be lean rather than be physically fit. 15. True (A) or false (B) – click on the correct answer: Individuals engaging in a standardised, supervised exercise programme have been shown to have very similar adaptive responses. 16. True (A) or false (B) – click on the correct answer: ‘Non-responders’ to a 12-week aerobic training pro- gramme experienced a statistically significant mean reduction in body weight from week 0 to week 12. 17. True (A) or false (B) – click on the correct answer: Exercise-induced improvements in blood pressure have been shown to be least effective in individuals classified as hypertensive at baseline. 18. True (A) or false (B) – click on the correct answer: Some individuals may be resistant to exercise-induced weight loss because of strong physiological compensa- tory processes. 19. True (A) or false (B) – click on the correct answer: Waist circumference has been shown to be a better marker of response to exercise than BMI. 20. True (A) or false (B) – click on the correct answer: The physiological and psychological benefits of exer- cise are dependent on weight loss. Questions July 2010 C P D q u e s t io n n a ir e CPD questionnaires must be completed online via www.cpdjournals.org.za. After submission you can check the answers and print your certificate. Questions may be answered up to 6 months after publication of each issue. InstructIons 1. Read the journal. All the answers will be found there. 2. Go to www.cpdjournals.org.za to answer questions. Accreditation number: MDB001/009/01/2010(Journal) SAJSM