PDF(Pubmed)
Abstract：
Compromised bone density in jockeys has previously been identified as an important health and safety concern in horseracing. Despite this, no update on the bone density status in Irish jockeys has been provided in the past decade. The study aimed to conduct a comprehensive update of the current bone density status in professional Irish jockeys and identify possible contributory physical and lifestyle factors. Eighty-five professional male jockeys (flat n = 39; national hunt (NH) n = 46) completed a dual-energy X-ray absorptiometry (DXA) scan for the assessment of body composition and bone mineral density (BMD) at the lumbar spine (LS), femoral neck (FN) and hip, 24-hour food recall, bone-specific physical activity questionnaire (BPAQ) and lifestyle questionnaire on weight making practices and injury history. Z-scores were interpreted to assess current bone density status. Correlation analysis was used to identify physical and lifestyle factors associated with bone mineral apparent density (BMAD). Results revealed a high prevalence of low BMD (Z-score < - 1.0) at the LS (44%), FN (15%) and hip (29%) in Irish jockeys. Analysis of jockeys physical characteristics found a positive relationship with the LS but not FN BMAD. Riding experience and timing of weight cut in NH and the practice of cutting weight in flat jockeys negatively influenced BMAD sites, while supplement use in flat jockeys displayed a positive effect on LS BMAD. Findings indicate the need for targeted individualised support strategies. Further investigation is required into jockey-specific intervention strategies that promote the development of optimal bone health in professional jockeys.
摘要：
以前，骑师骨密度受损已被确定为赛马中重要的健康和安全问题。尽管如此,在过去的十年中，没有提供有关爱尔兰骑师骨密度状况的最新信息。该研究旨在对爱尔兰职业骑师的当前骨密度状况进行全面更新，并确定可能的身体和生活方式因素。85名专业男性骑师（扁平n=39；国家狩猎（NH）n=46）完成了双能X射线吸收仪（DXA）扫描，以评估腰椎（LS）的身体成分和骨密度（BMD），股骨颈（FN）和髋部，24小时食品召回,骨特异性体力活动问卷（BPAQ）和生活方式问卷关于体重制定和损伤史。解释Z评分以评估当前的骨密度状态。采用相关性分析确定与骨矿物质表观密度（BMAD）相关的身体和生活方式因素。结果显示，在LS（44%），低骨密度（Z评分<-1.0）的患病率很高，爱尔兰骑师的FN（15％）和臀部（29％）。对骑师身体特征的分析发现与LS呈正相关，而与FNBMAD无关。NH的骑行经验和减重时间以及扁平骑师的减重做法对BMAD站点产生了负面影响，而在平板骑师中补充使用对LSBMAD有积极影响。研究结果表明，需要有针对性的个性化支持策略。需要进一步调查特定于骑师的干预策略，以促进专业骑师的最佳骨骼健康发展。
