University at Buffalo, Department of Rehabilitation Sciences, Buffalo, NY, USA.
University at Buffalo, Department of Exercise and Nutrition Sciences, Center for Research and Education in Special Environments, Buffalo, NY, USA.
Appl Ergon. 2019 Oct;80:187-192. doi: 10.1016/j.apergo.2019.05.010. Epub 2019 Jun 18.
There is a high rate of injury associated with firefighting: in 2016, 21% of all fireground injuries were attributed to falls, jumps and slips. Examining factors related to balance, including experience in wearing firefighter gear, may assist in reducing injury related to falls.
To assess the effects of wearing firefighter gear on postural balance in firefighters and non-firefighters in a rested condition.
Each subject attended two sessions. In session 1, informed consent was obtained, a threshold audiogram was collected, and the sensory organization test (SOT) and motor control test (MCT) were administered with the subject dressed in street clothes. The second session was comprised of three different conditions with the order of testing randomized across subjects: street clothing, firefighter protective garments (coat, pants, helmet, hood) with breathing apparatus but no facemask, and firefighter protective garments with breathing apparatus and facemask. Twenty subjects participated: ten firefighters (8 males) and sex and age-matched non-firefighters (8 males) completed the study.
SOT scores were obtained for each sub-condition, including the overall performance score and sensory weightings. For the MCT, latency and amplitude data were obtained for the three forward and three reverse translation conditions. A significant difference was found for large forward surface translations in the MCT in firefighters.
In spite of the altered center of balance created by breathing apparatus and the altered visual cues created by the facemask, wearing firefighter gear did not substantively affect anterior-posterior postural stability or motor response to linear translation in rested, healthy individuals. Firefighters and non-firefighters performed similarly across all except one of the experimental conditions.
消防工作中受伤率很高:2016 年,21%的火场受伤归因于跌倒、跳跃和滑倒。研究与平衡相关的因素,包括穿着消防装备的经验,可能有助于减少与跌倒相关的伤害。
评估在休息状态下,穿着消防装备对消防员和非消防员姿势平衡的影响。
每位受试者参加两次测试。在第 1 次测试中,获得知情同意,收集阈声声图,并进行感觉组织测试(SOT)和运动控制测试(MCT),受试者穿着便服。第 2 次测试由三种不同条件组成,测试顺序在受试者之间随机化:便服、穿着消防防护服(外套、裤子、头盔、头罩)但没有面罩,以及穿着呼吸设备和面罩的消防防护服。共有 20 名受试者参与:10 名消防员(8 名男性)和性别和年龄匹配的非消防员(8 名男性)完成了研究。
得出了每个子条件的 SOT 分数,包括总体表现得分和感觉权重。对于 MCT,获得了三个向前和三个向后翻译条件的潜伏期和振幅数据。在消防员的 MCT 中,大向前表面翻译时,发现了显著差异。
尽管呼吸设备改变了平衡中心,面罩改变了视觉线索,但在休息、健康的个体中,穿着消防装备并没有实质性地影响前后姿势稳定性或对线性翻译的运动反应。消防员和非消防员在除一个实验条件外的所有条件下表现相似。