消防员空气消耗测试中的缓慢和快速表现者的特征
Kealey J Wohlgemuth1, Alex Jesko2, Vanessa Frost3
1Neuromuscular and Occupational Performance Laboratory, Texas Tech University, Lubbock, TX, USA.
Applied ergonomics
|March 2, 2024
概括
消防员在空气消耗测试 (ACT) 的表现与身体脂肪百分比和氧气消耗有显著的相关性. 更快的表现者表现出较低的身体脂肪和更高的氧气吸收,表明关键的生理差异.
科学领域:
- 职业健康 职业健康 职业健康
- 运动生理学 运动生理学
- 消防员科学 消防员科学
背景情况:
- 空气消耗测试 (ACT) 是消防员的关键身体能力评估.
- 了解ACT中的表现的生理决定因素对于消防员的健康和安全至关重要.
- 之前的研究还没有完全阐明ACT高和低表现者之间的生理差异.
研究的目的:
- 在ACT上比较缓慢和快速表现者之间的人口和生理特征.
- 确定在ACT期间区分消防员表现的关键生理因素.
主要方法:
- 160名职业消防员接受了评估,包括空气消耗,总任务时间,体重指数 (BMI),心率峰值 (HRpeak),身体脂肪百分比 (BF%),氧气消耗峰值 (VO2峰值).
- 采用K-means集群,将参与者分为缓慢和快速的绩效组.
- 独立的样本t测试和科恩的d测试被用来分析所识别的群体之间的差异.
主要成果:
- 在缓慢和快速执行ACT的人之间,在年龄,BMI或HR峰值方面没有观察到显著差异.
- 在BF%,VO2峰值 (相对和绝对),空气消耗和总任务时间方面发现了显著的差异.
- 更快的表现者表现出明显较低的BF%和更高的VO2峰值,以及更低的空气消耗和更短的任务时间.
结论:
- 生理因素,特别是身体脂肪百分比和氧气消耗能力,是消防员ACT表现的重要差异化因素.
- 这些发现强调了身体组成和心肺健康对于成功执行ACT的重要性.
- 这项研究为为消防员制定有针对性的健身建议提供了有价值的见解.
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