Nazari Goris, MacDermid Joy C, Sinden Kathryn E, Overend Tom J
a Health & Rehabilitation Science, Physiotherapy , Western University , Canada.
b Roth McFarlane Hand and Upper Limb Centre , St. Joseph's Hospital , Canada.
Int J Occup Saf Ergon. 2019 Mar;25(1):1-7. doi: 10.1080/10803548.2017.1372086. Epub 2017 Oct 10.
Few studies have addressed whether firefighters are fitter than the general population and possess sufficient levels of aerobic capacity and muscle strength to perform on-duty tasks in a safe and efficient manner, considering age and gender. We aimed to evaluate the fitness levels of Hamilton firefighters, and to determine the effects of age and gender.
In total, 89 participants were recruited. The modified Canadian aerobic fitness test was used to determine participants' estimated maximal oxygen consumption (V) levels. For upper and lower body strength levels, a calibrated J-Tech hand-held dynamometer and a National Institute for Occupational Safety and Health (NIOSH) lifting device was used respectively.
Firefighters' mean (SD) V level was 40.30 ± 6.25 ml·kg·min. Age proved to have a statistically significant impact on V (p < 0.001). Gender displayed statistically significant effects on strength levels. Firefighters' age was the only statistically significant independent variable, and accounted for 61.00% of the variance in firefighters' aerobic capacity levels.
Firefighters possessed somewhat similar aerobic capacities but much higher levels of body strength when compared with the general population. With age, firefighters' aerobic capacities decreased; however, their upper and lower body strength levels remained the same.
考虑到年龄和性别因素，很少有研究探讨消防员是否比普通人群更健康，是否具备足够的有氧能力和肌肉力量以安全高效地执行执勤任务。我们旨在评估汉密尔顿消防员的健康水平，并确定年龄和性别的影响。
总共招募了89名参与者。采用改良的加拿大有氧适能测试来确定参与者的估计最大摄氧量（V̇O₂max）水平。对于上肢和下肢力量水平，分别使用校准的J-Tech手持式测力计和美国国家职业安全与健康研究所（NIOSH）的举重设备。
消防员的平均（标准差）V̇O₂max水平为40.30±6.25ml·kg⁻¹·min⁻¹。年龄被证明对V̇O₂max有统计学上的显著影响（p<0.001）。性别对力量水平有统计学上的显著影响。消防员的年龄是唯一具有统计学意义的自变量，占消防员有氧能力水平方差的61.00%。
与普通人群相比，消防员的有氧能力有些相似，但身体力量水平要高得多。随着年龄的增长，消防员的有氧能力下降；然而，他们的上肢和下肢力量水平保持不变。
