Biostatistics Unit, South African Medical Research Council, Cape Town, SOUTH AFRICA.
Sport, Exercise Medicine and Lifestyle Institute (SEMLI) and Section Sports Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, SOUTH AFRICA.
Med Sci Sports Exerc. 2021 Mar 1;53(3):517-523. doi: 10.1249/MSS.0000000000002492.
There are limited data on risk factors associated with illness-related medical encounters (illME) in cycling events. The aim of this study was to determine risk factors associated with illME in mass community-based endurance cycling events.
This is a retrospective cross-sectional study in the Cape Town Cycle Tour (109 km), South Africa, with 102,251 race starters. All medical encounters for 3 yr were recorded by race medical doctors and nurses. illME were grouped into common illnesses by final diagnosis. A Poisson regression model was used to determine whether specific risk factors (age, sex, cycling speed, and average individual cyclist wet-bulb globe temperature [aiWBGT]) are associated with illME, serious and life-threatening or death ME, and specific common illME.
Independent risk factors associated with all illME during an endurance cycling event were slow cycling speed (P = 0.009) and higher aiWBGT (P < 0.001). Risk factors associated with serious and life-threatening or death ME were older age (P = 0.007) and slower cycling speed (P = 0.016). Risk factors associated with specific common illME were fluid and electrolyte disorders (females, older age, and higher aiWBGT) and cardiovascular illness (older age).
Females, older age, slower cycling speed, and higher aiWBGT were associated with illME in endurance cycling. These data could be used to design and implement future prevention programs for illME in mass community-based endurance cycling events.
关于与自行车赛事相关的疾病医疗接触（illME）的风险因素，相关数据有限。本研究旨在确定大规模社区基础耐力自行车赛事中与 illME 相关的风险因素。
这是一项回顾性的横断面研究，研究对象是南非开普敦自行车赛（109 公里）的 102251 名参赛选手。所有医疗接触情况均由赛会医生和护士记录。illME 根据最终诊断分为常见疾病。采用泊松回归模型确定特定风险因素（年龄、性别、骑行速度和个体平均湿球黑球温度[aiWBGT]）是否与 illME、严重和危及生命或死亡 ME 以及特定常见疾病相关。
与耐力自行车赛事中所有 illME 相关的独立风险因素是骑行速度慢（P=0.009）和 aiWBGT 高（P<0.001）。与严重和危及生命或死亡 ME 相关的风险因素是年龄较大（P=0.007）和骑行速度较慢（P=0.016）。与特定常见疾病相关的风险因素是液体和电解质紊乱（女性、年龄较大和 aiWBGT 较高）和心血管疾病（年龄较大）。
女性、年龄较大、骑行速度较慢和 aiWBGT 较高与耐力自行车赛中的 illME 相关。这些数据可用于设计和实施大规模社区基础耐力自行车赛事中 illME 的未来预防计划。
