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Comparison of wet bulb globe temperature measured on-site vs estimated and the impact on activity modification in high school football
International Journal of Biometeorology ( IF 3.2 ) Pub Date : 2019-12-21 , DOI: 10.1007/s00484-019-01847-2 Brady Tripp 1 , Heather K Vincent 2 , Michelle Bruner 3 , Michael Seth Smith 3
International Journal of Biometeorology ( IF 3.2 ) Pub Date : 2019-12-21 , DOI: 10.1007/s00484-019-01847-2 Brady Tripp 1 , Heather K Vincent 2 , Michelle Bruner 3 , Michael Seth Smith 3
Affiliation
Exertional heat stroke is one of the top three causes of death in young athletes, particularly high school football players. Despite evidence that these deaths are completely avoidable with appropriate prevention and treatment, deaths still occur at an alarming rate. Wet bulb globe temperature (WBGT) is the preferred method of both the National Athletic Trainers’ Association and American College of Sports Medicine to measure heat intensity. Based on the WBGT, activity modification guidelines (AMG) dictate work-to-rest ratios, activity levels and duration, protective equipment worn, and length and frequency of hydration breaks. Due to the cost of handheld WBGT monitors, smartphone apps that estimate WBGT have been considered an alternative. However, it is unclear how WBGT values estimated by these smartphone apps compare to those measured on-site using handheld WBGT monitors. We compared WBGT values estimated by a commercial smartphone app to those taken on-site at the same time and place. Thirteen athletic trainers measured WBGT in the field during high school football practices over a three-month season in North Central Florida. A paired sample t-test indicated the smartphone app significantly overestimated WBGT (29.0°C ± 4.1°C) compared to on-site measures (26.4°C ± 3.2°C) ( r =0.580; t(943)=-23.38, p <0.0001). The smartphone app-estimated values were consistently greater than on-site measures, resulting in potentially unnecessary activity modifications and cancellations if the app was used in place of on-site handheld WBGT monitors. Despite being significantly cheaper than handheld WBGT monitors, at this time, smartphone apps are not ready for widespread use to guide activity modification decisions.
中文翻译:
现场测量的湿球球温度与估计值的比较以及对高中橄榄球活动调整的影响
劳力性中暑是年轻运动员,尤其是高中橄榄球运动员的三大死因之一。尽管有证据表明通过适当的预防和治疗可以完全避免这些死亡,但死亡人数仍然以惊人的速度发生。湿球球温度 (WBGT) 是美国国家体育教练协会和美国运动医学学院测量热强度的首选方法。根据 WBGT,活动调整指南 (AMG) 规定了工作与休息的比率、活动水平和持续时间、穿戴的防护设备以及补水休息的时间和频率。由于手持 WBGT 显示器的成本,估计 WBGT 的智能手机应用程序已被视为替代方案。然而,目前尚不清楚这些智能手机应用程序估计的 WBGT 值与使用手持 WBGT 监测器现场测量的值相比如何。我们将商业智能手机应用程序估计的 WBGT 值与在同一时间和地点现场获取的值进行了比较。在佛罗里达州中北部为期三个月的高中橄榄球训练期间,13 名运动教练在现场测量了 WBGT。配对样本 t 检验表明,与现场测量值 (26.4°C ± 3.2°C) 相比,智能手机应用程序显着高估了 WBGT (29.0°C ± 4.1°C)( r =0.580;t(943)=-23.38, p <0.0001)。智能手机应用程序的估计值始终高于现场测量值,如果使用该应用程序代替现场手持 WBGT 监视器,可能会导致潜在的不必要的活动修改和取消。
更新日期:2019-12-21
中文翻译:
现场测量的湿球球温度与估计值的比较以及对高中橄榄球活动调整的影响
劳力性中暑是年轻运动员,尤其是高中橄榄球运动员的三大死因之一。尽管有证据表明通过适当的预防和治疗可以完全避免这些死亡,但死亡人数仍然以惊人的速度发生。湿球球温度 (WBGT) 是美国国家体育教练协会和美国运动医学学院测量热强度的首选方法。根据 WBGT,活动调整指南 (AMG) 规定了工作与休息的比率、活动水平和持续时间、穿戴的防护设备以及补水休息的时间和频率。由于手持 WBGT 显示器的成本,估计 WBGT 的智能手机应用程序已被视为替代方案。然而,目前尚不清楚这些智能手机应用程序估计的 WBGT 值与使用手持 WBGT 监测器现场测量的值相比如何。我们将商业智能手机应用程序估计的 WBGT 值与在同一时间和地点现场获取的值进行了比较。在佛罗里达州中北部为期三个月的高中橄榄球训练期间,13 名运动教练在现场测量了 WBGT。配对样本 t 检验表明,与现场测量值 (26.4°C ± 3.2°C) 相比,智能手机应用程序显着高估了 WBGT (29.0°C ± 4.1°C)( r =0.580;t(943)=-23.38, p <0.0001)。智能手机应用程序的估计值始终高于现场测量值,如果使用该应用程序代替现场手持 WBGT 监视器,可能会导致潜在的不必要的活动修改和取消。