PDF(Pubmed)
Abstract：
Firefighters are required to perform physically strenuous tasks such as hose drags, victim rescues, forcible entries and stair climbs to complete their public safety mission. Occupational-specific tasks are often used to evaluate the ability of firefighters to adequately/safely perform their duties. Depending on the regions, occupational-specific tasks include six to eight individual tasks, which emphasize distinct aspects of their physical fitness, while also requiring different levels of cardiovascular (CVH) and musculoskeletal health (MSH). Therefore, the aim of this study was to evaluate the relationship between specific occupational task performance and measures of physical fitness, cardiovascular and musculoskeletal health.
Using a cross-sectional design, 282 full-time male and female firefighters were recruited. A researcher-generated questionnaire and physical measures were used to collect data on sociodemographic characteristics, CVH, MSH and weekly physical activity habits. Physical measures were used to collect data on physical fitness and occupational-specific task performance.
Absolute cardiorespiratory fitness (abV̇O2max), grip strength, leg strength, push-ups, sit-ups and lean body mass (all p < 0.001) had an inverse association with completion times on all occupational-specific tasks. Age was positively related to the performance of all tasks (all p < 0.05). Higher heart rate variability (HRV) was associated with better performance on all tasks (all p < 0.05). Bodyfat percentage (BF%) and diastolic blood pressure were positively associated with the step-up task (p < 0.05). Lower back musculoskeletal injury (LoBMSI), musculoskeletal discomfort (MSD), and lower limb MSD were associated with a decreased odds of passing the step-up. Upper body MSIs (UBMSI), LoBMSIs and Lower back MSD were associated with decreased odds of passing the rescue drag.
Firefighters that were taller, leaner, stronger and fitter with a more favourable CVH profile, higher HRV and less musculoskeletal discomfort performed best on all occupational-specific tasks.
Using a cross-sectional design, 282 full-time male and female firefighters were recruited. A researcher-generated questionnaire and physical measures were used to collect data on sociodemographic characteristics, CVH, MSH and weekly physical activity habits. Physical measures were used to collect data on physical fitness and occupational-specific task performance.
Absolute cardiorespiratory fitness (abV̇O2max), grip strength, leg strength, push-ups, sit-ups and lean body mass (all p < 0.001) had an inverse association with completion times on all occupational-specific tasks. Age was positively related to the performance of all tasks (all p < 0.05). Higher heart rate variability (HRV) was associated with better performance on all tasks (all p < 0.05). Bodyfat percentage (BF%) and diastolic blood pressure were positively associated with the step-up task (p < 0.05). Lower back musculoskeletal injury (LoBMSI), musculoskeletal discomfort (MSD), and lower limb MSD were associated with a decreased odds of passing the step-up. Upper body MSIs (UBMSI), LoBMSIs and Lower back MSD were associated with decreased odds of passing the rescue drag.
Firefighters that were taller, leaner, stronger and fitter with a more favourable CVH profile, higher HRV and less musculoskeletal discomfort performed best on all occupational-specific tasks.
摘要：
背景：消防员需要执行身体上艰苦的任务，例如软管拖拉，获救受害者,强行进入和爬楼梯以完成他们的公共安全任务。职业特定任务通常用于评估消防员充分/安全履行职责的能力。根据地区的不同,特定于职业的任务包括六到八个单独的任务，强调他们身体健康的不同方面，同时还需要不同水平的心血管（CVH）和肌肉骨骼健康（MSH）。因此,这项研究的目的是评估特定职业任务绩效与身体素质指标之间的关系，心血管和肌肉骨骼健康。
方法：使用横截面设计，招募了282名全职男女消防员。研究人员生成的问卷和身体测量被用来收集社会人口统计学特征的数据，CVH,MSH和每周体育锻炼习惯。身体测量用于收集有关身体健康和特定职业任务表现的数据。
结果：绝对心肺健康（abV几百O2max），握力,腿部力量,俯卧撑,仰卧起坐和瘦体重(均p<0.001)与所有特定职业任务的完成时间呈负相关.年纪与一切任务成绩呈正相干(均p<0.05)。较高的心率变异性（HRV）与所有任务的更好表现相关（均p<0.05）。体脂百分比（BF％）和舒张压与步高任务呈正相关（p<0.05）。下背部肌肉骨骼损伤（LoBMSI），肌肉骨骼不适（MSD），和下肢MSD与通过升压的几率降低相关。上身MSI(UBMSI),LoBMSI和下背部MSD与通过救援阻力的几率降低有关。
结论：消防员较高，leaner,更强壮，更适合，更有利的CVH轮廓，在所有特定职业任务中，较高的HRV和较少的肌肉骨骼不适表现最佳。
方法：使用横截面设计，招募了282名全职男女消防员。研究人员生成的问卷和身体测量被用来收集社会人口统计学特征的数据，CVH,MSH和每周体育锻炼习惯。身体测量用于收集有关身体健康和特定职业任务表现的数据。
结果：绝对心肺健康（abV几百O2max），握力,腿部力量,俯卧撑,仰卧起坐和瘦体重(均p<0.001)与所有特定职业任务的完成时间呈负相关.年纪与一切任务成绩呈正相干(均p<0.05)。较高的心率变异性（HRV）与所有任务的更好表现相关（均p<0.05）。体脂百分比（BF％）和舒张压与步高任务呈正相关（p<0.05）。下背部肌肉骨骼损伤（LoBMSI），肌肉骨骼不适（MSD），和下肢MSD与通过升压的几率降低相关。上身MSI(UBMSI),LoBMSI和下背部MSD与通过救援阻力的几率降低有关。
结论：消防员较高，leaner,更强壮，更适合，更有利的CVH轮廓，在所有特定职业任务中，较高的HRV和较少的肌肉骨骼不适表现最佳。
