关键词: Firefighter aerobic capacity fitness assessment maximal fitness submaximal fitness

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Abstract:
Tactical populations face increased risk on the job, and it is known that firefighters have high levels of cardiac-related death. Aerobic fitness is a modifiable cardiac risk factor, but many fire stations lack the proper equipment to easily assess aerobic fitness levels of their firefighters. Additionally, many fire stations lack wellness programs to hold firefighters accountable for maintaining their fitness levels.
UNASSIGNED: We assessed the validity of the submaximal 6-minute walk test (6MWT) as a measure of aerobic capacity compared to a maximal treadmill test and the submaximal Gerkin protocol.
UNASSIGNED: Twenty-four firefighters (19 male, 5 female, 34.8 ± 9.7 years; 38.1 ± 3.6 kg·m-2) completed the 6MWT, the submaximal Gerkin protocol, and a maximal treadmill test. Data were analyzed with Bland-Altman plots and correlation analysis.
UNASSIGNED: We found equivalence between the 6MWT and directly measured VO2max and between the 6MWT and Gerkin protocol using Bland-Altman plots. In our cohort, the 6MWT underestimated VO2max (31.57 ml·kg-1·min-1) compared to directly measured VO2max (38.1 ml·kg-1·min-1) by 17% and to the Gerkin (40.48 ml·kg-1·min-1) by 22%.
UNASSIGNED: Considering its equivalence, using the 6MWT could be a more accessible way to quantify aerobic capacity in firefighters. Despite underestimation, having an easy to administer protocol may encourage more fire stations to assess pre- and post- fitness levels regularly.
摘要:
战术人群在工作中面临更大的风险,众所周知,消防员有高水平的心脏相关死亡。有氧健身是一个可改变的心脏危险因素,但是许多消防局缺乏适当的设备来轻松评估消防员的有氧健康水平。此外,许多消防局缺乏健康计划,让消防员负责维持他们的健康水平。
我们评估了与最大跑步机测试和亚最大Gerkin方案相比,亚最大6分钟步行测试(6MWT)作为有氧能力度量的有效性。
24名消防员(19名男性,5女,34.8±9.7年;38.1±3.6kg·m-2)完成6MWT,次最大的Gerkin协议,和最大跑步机测试。数据采用Bland-Altman图和相关分析进行分析。
我们发现了6MWT与直接测量的VO2max之间以及使用Bland-Altman图的6MWT与Gerkin协议之间的等效性。在我们的队列中,与直接测量的VO2max(38.1ml·kg-1·min-1)和Gerkin(40.48ml·kg-1·min-1)相比,6MWT低估了VO2max(31.57ml·kg-1·min-1)为22%。
考虑到它的等价性,使用6MWT可能是一种更容易量化消防员有氧能力的方法。尽管低估了,有一个易于管理的协议可能会鼓励更多的消防局定期评估前和后健身水平。
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