Sports Medicine Unit, Umeå University, Sweden.
PLoS One. 2013 Jul 2;8(7):e68047. doi: 10.1371/journal.pone.0068047. Print 2013.
Working as a firefighter is physically strenuous, and a high level of physical fitness increases a firefighter's ability to cope with the physical stress of their profession. Direct measurements of aerobic capacity, however, are often complicated, time consuming, and expensive. The first aim of the present study was to evaluate the correlations between direct (laboratory) and indirect (field) aerobic capacity tests with common and physically demanding firefighting tasks. The second aim was to give recommendations as to which field tests may be the most useful for evaluating firefighters' aerobic work capacity. A total of 38 subjects (26 men and 12 women) were included. Two aerobic capacity tests, six field tests, and seven firefighting tasks were performed. Lactate threshold and onset of blood lactate accumulation were found to be correlated to the performance of one work task (r(s) = -0.65 and -0.63, p<0.01, respectively). Absolute (mL · min(-1)) and relative (mL · kg(-1) · min(-1)) maximal aerobic capacity was correlated to all but one of the work tasks (r(s) = -0.79 to 0.55 and -0.74 to 0.47, p<0.01, respectively). Aerobic capacity is important for firefighters' work performance, and we have concluded that the time to row 500 m, the time to run 3000 m relative to body weight (s · kg(-1)), and the percent of maximal heart rate achieved during treadmill walking are the most valid field tests for evaluating a firefighter's aerobic work capacity.
作为一名消防员，工作强度大，较高的身体素质可以提高消防员应对职业身体压力的能力。然而，有氧能力的直接（实验室）测量通常很复杂、耗时且昂贵。本研究的首要目的是评估直接（实验室）和间接（现场）有氧能力测试与常见且体力要求高的消防任务之间的相关性。第二个目的是就哪些现场测试最有助于评估消防员的有氧工作能力提出建议。共有 38 名受试者（26 名男性和 12 名女性）参与了研究。进行了两项有氧能力测试、六项现场测试和七项消防任务。乳酸阈和血乳酸积累开始时与一项工作任务的表现相关（r(s)分别为-0.65 和-0.63，p<0.01）。绝对（mL·min(-1))和相对（mL·kg(-1)·min(-1))最大有氧能力与除一项工作任务外的所有任务相关（r(s)分别为-0.79 至 0.55 和-0.74 至 0.47，p<0.01）。有氧能力对消防员的工作表现很重要，我们得出的结论是，划 500 米的时间、相对体重的 3000 米跑步时间（s·kg(-1))和在跑步机上行走时达到的最大心率百分比是评估消防员有氧工作能力最有效的现场测试。
