https://commons.ru.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 "Glory is temporary, brain injury may be forever" : a neuropsychological study on the cumulative effects of sports-related concussive brain injury amongst Grade 12 school boy athletes https://commons.ru.ac.za/vital/access/manager/Repository/vital:3104 0.05), with the Contact sport groups having markedly higher incidences of concussion than controls (p < 0.000). Measures included the ImPACT Verbal and Visual Memory, Visuomotor Speed and Reaction Time Composites, Digit Symbol Substitution and Digit Symbol Incidental Recall (immediate and delayed), the ImPACT Symptom Scale and a Post-concussion Symptom (PCS) questionnaire. Independent t-tests on cognitive measures at pre-and post-season revealed a predominant trend of Contact and 2+ Concussion groups performing worse, although only ImPACT Reaction Time at pre-season reached significance (p = 0.014). PCS comparisons revealed an overwhelming tendency of enhanced symptoms for Contact and 2+ Concussion groups with total scores being significantly different in most instances at pre-and post-season. Fatigue and aggression were the symptoms most pervasively high for the Contact and 2+ Concussion groups. Dependent t-test analyses at pre- versus post-season, revealed significant practice effects for the Contact group, not in evidence for controls on ImPACT Visual Motor Speed and Digit Symbol Incidental Recall-Delayed. Overall the results imply the possible presence of lingering neurocognitive and symptomatic concussion sequelae amongst South African final year high school participants of a contact sport. The indications gain potency when understood against the background of (i) Brain Reserve Capacity threshold theory, and (ii) the known risk of Type II error in group MTBI research, that might result in under-emphasis of subtle effects and miscalculation of cost-benefit risks. Clinical implications, and the need for prospective case-based research to ratify the results of this predominantly cross-sectional study, are discussed.]]> Wed 12 May 2021 18:30:18 SAST ]]> Studies related to the process of program development https://commons.ru.ac.za/vital/access/manager/Repository/vital:4680 Wed 12 May 2021 15:54:39 SAST ]]> Physics and applications of scintillation detectors https://commons.ru.ac.za/vital/access/manager/Repository/vital:5482 Thu 13 May 2021 04:31:15 SAST ]]> Innovations in gold extraction https://commons.ru.ac.za/vital/access/manager/Repository/vital:4317 Thu 13 May 2021 03:50:26 SAST ]]> Reactions in the solid state https://commons.ru.ac.za/vital/access/manager/Repository/vital:4529 Thu 13 May 2021 00:53:01 SAST ]]>