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CYCLISTS WANTED FOR UCT RESEARCH DOES SLEEP DEPRIVATION IMPAIR EXERCISE RECOVERY? The aims of this study are (i) to describe the sleep habits of recreational male cyclists and to relate this to an aspect of their genetic makeup associated with preference for mornings or evenings, as well as sleep timing, and (ii) to compare individuals recovering from a single bout of high intensity interval training following either partial sleep deprivation or normal sleep. We are looking for trained recreational cyclists. If you: Are a male between 20 and 50 years of age Train at least three days per week for at least one hour per session Have a current Argus Cycle Tour time of under 03h45min You can volunteer for this study What is involved? Part A: Complete a questionnaire, donate cheek cell sample to determine your genetic variant for a gene linked to sleep behaviour, perform submaximal and maximal (VO2max) cycle tests. Part B: Have your performance, immune, inflammation and muscle damage responses measured in response to a single high intensity interval training session when you are either sleep deprived, or have had a normal night of sleep. What are the benefits? Personal and general feedback at the end of the study describing the sleep habits of recreational cyclists, as well the effect of sleep deprivation on exercise recovery. If you are interested in taking part in the study and would like additional information, please contact: Tayla Chin Kagiso Dikgomo taylachin@gmail.com kagiso.dikgomo@gmail.com 076 043 6795 074 121 0868

Dear fellow HubSA members, The MRC/UCT Research Unit for Exercise Science and Sports Medicine is conducting a study to investigate the psychophysiological determinants of pacing during prolonged endurance. The aim of the study is to determine the physical and mental factors that make up the High Performance Athlete. The study will investigate the differences between 'Elite' and 'Sub-Elite' cyclists as well as the differences between the 'Winners' and 'Losers' of a simulated head-on-head competition on a virtual hilly 70km time trial course. Eligibility criteria are: Male Age 18-45 'Elite' cyclists: Sub-3 hours Cape Argus,>8h per week, and if available a PPO of 5.3 to 5.7 W/kg and a VO2max of >60 ml/min/kg 'Sub-Elite' cyclists: 3:15 to 3:30 Cape Argus, 6-8h per week, and if available a PPO of 4.5 to 4.9 W/kg and a VO2max of >55 ml/min/kg Requirements are: 4 visits to the Sports Science Institute of South Africa, Newlands, Cape Town in the next 6 to 8 weeks Visit 1: 3.5-4h, incl. Anthropometry, VO2max testing and 70km Familiarization Visit 2: 2.5-3h, maximal 70km Baseline Time Trial Visit 3: 3-3.5h, maximal 70km Individual Time Trial, incl. questionnaires and blood sampling Visit 4: 3-3.5h, maximal 70km Competition Time Trial against an equally matched cyclist, incl. questionnaires and blood sampling Benefits are: A full and comprehensive VO2max Report Spin Scan analysis of your two Experimental Time Trials A Psychological Performance Profile For more Information see Research Posters attached and/or contact: Dr. Andreas Venhorst, MD andreas.venhorst@gmail.com We are looking forward to having you as a participant! Kind regards Andreas Research Poster Psychophysiology Elite.pdf Research Poster Psychophysiology Sub-Elite.pdf