Neuromuscular and Occupational Performance Laboratory, Texas Tech University, Lubbock, TX, USA.
Front Line Mobile Health, Georgetown, TX, USA.
Appl Ergon. 2024 Jul;118:104262. doi: 10.1016/j.apergo.2024.104262. Epub 2024 Mar 1.
An air consumption test (ACT) is a physical ability test used in the fire service. The purpose of this study was to compare demographics and physiological differences between slow versus fast performers on an ACT. 160 career firefighters had air consumption, total task time, body mass index (BMI), peak heart rate (HR), body fat percentage (BF%), and oxygen consumption (VO) measured. K-means clustering was used to dichotomize between slow and fast groups during an ACT. Independent samples t-tests and Cohen's d measures of effect size were used to examine differences between groups. There were no significant differences in groups for age (t = -1.05, p = 0.30, d = 0.17), BMI (t = -1.85, p = 0.07, d = 0.32), or HR (t = 0.99, p = 0.32, d = 0.16). There were significant differences between groups for BF% (t = -3.35, p < 0.01, d = 0.57), relative (t = 3.52, p < 0.01, d = 0.58) and absolute VO (t = 4.29, p < 0.01, d = 0.68), air consumption (t = -4.87, p < 0.01, d = 0.81), and total task time (t = -15.04, p < 0.01, d = 2.58).
耗气测试（ACT）是消防部门使用的一种体能测试。本研究旨在比较 ACT 中表现较慢和较快的消防员在人口统计学和生理学方面的差异。对 160 名职业消防员的耗气量、总任务时间、体重指数（BMI）、最大心率（HR）、体脂百分比（BF%）和耗氧量（VO）进行了测量。使用 K-均值聚类法在 ACT 中对慢组和快组进行二分法。使用独立样本 t 检验和 Cohen's d 效应量测量来检验组间差异。两组在年龄（t = -1.05，p = 0.30，d = 0.17）、BMI（t = -1.85，p = 0.07，d = 0.32）或 HR（t = 0.99，p = 0.32，d = 0.16）方面无显著差异。两组在 BF%（t = -3.35，p < 0.01，d = 0.57）、相对（t = 3.52，p < 0.01，d = 0.58）和绝对 VO（t = 4.29，p < 0.01，d = 0.68）、耗气量（t = -4.87，p < 0.01，d = 0.81）和总任务时间（t = -15.04，p < 0.01，d = 2.58）方面存在显著差异。
