Journal Title (Medline/Pubmed accepted abbreviation): J Sports Sci
doi (if applicable):
Hypothesis: The authors did not state a specific hypothesis, but were concerned that jockeys may resort to unhealthy diet and/or exercise practices to make weight. The authors stated that the problem of weight restriction in jockeys is compounded by the fact that, in Ireland, where the study was conducted, the average jockey trainee mass has increased by 37% while the minimum weight allocation for flat track jockey has increased by only 6% over the past 30 years.
Subjects: 27 professional jockeys (17 flat track, 10 National Hunt (obstacles on track)) participated in a survey. Average age was 27.3 years, average height was 1.67 m, average body mass was 58 kg, and average percentage body fat (via dual energy X-ray absorptiometry) was 9.5%. All jockies were male and licensed.
Experimental design: Observational, cross-sectional
Treatments:No treatments assigned
Protocol:Participants completed a 7-day food diary during a “typical racing week”. Resting metabolic rate was estimated via the use of an equation. Participants also completed a modified version of a diet, health, and lifestyle questionnaire. The questionnaire contained 59 open- and closed-ended items and was pilot tested on 100 Australian professional jockeys before the study. The instrument collected general information on general health, smoking, methods and time frames of weight control for racing, perceived negative effects associated with making weight, and self-perception of challenging and positive aspects of the jockey lifestyle.
It appears from this study that jockies in Ireland typically resort to several dietary and lifestyle practices that could be considered unhealthy in their attempts to lose weight. It is not clear if these behaviors can be generalized to other jockies. However, nutritional and lifestyle education is needed in this population.