Bach Aaron J E, Costello Joseph T, Borg David N, Stewart Ian B
a School of Exercise and Nutrition Sciences and Institute of Health and Biomedical Innovation , Queensland University of Technology , Brisbane , Australia.
b Extreme Environments Laboratory, Department of Sport and Exercise Science , University of Portsmouth , Portsmouth , UK.
Ergonomics. 2017 Mar;60(3):430-438. doi: 10.1080/00140139.2016.1173233. Epub 2016 Apr 25.
This investigation aimed to quantify metabolic rate when wearing an explosive ordnance disposal (EOD) ensemble (~33kg) during standing and locomotion; and determine whether the Pandolf load carriage equation accurately predicts metabolic rate when wearing an EOD ensemble during standing and locomotion. Ten males completed 8 trials with metabolic rate measured through indirect calorimetry. Walking in EOD at 2.5, 4.0 and 5.5km·h was significantly (p < 0.05) greater than matched trials without the EOD ensemble by 49% (127W), 65% (213W) and 78% (345W), respectively. Mean bias (95% limits of agreement) between predicted and measured metabolism during standing, 2.5, 4 and 5.5km·h were 47W (19 to 75W); -111W (-172 to -49W); -122W (-189 to -54W) and -158W (-245 to -72W), respectively. The Pandolf equation significantly underestimated measured metabolic rate during locomotion. These findings have practical implications for EOD technicians during training and operation and should be considered when developing maximum workload duration models and work-rest schedules. Practitioner Summary: Using a rigorous methodological design we quantified metabolic rate of wearing EOD clothing during locomotion. For the first time we demonstrated that metabolic rate when wearing this ensemble is greater than that predicted by the Pandolf equation. These original findings have significant implications for EOD training and operation.
本研究旨在量化穿着爆炸物处理（EOD）装备（约33千克）时站立和移动过程中的代谢率；并确定潘多夫负荷携带方程是否能准确预测穿着EOD装备时站立和移动过程中的代谢率。10名男性完成了8次试验，通过间接量热法测量代谢率。穿着EOD装备以2.5、4.0和5.5千米·小时的速度行走时，代谢率显著高于（p<0.05）未穿着EOD装备的匹配试验，分别高出49%（127瓦）、65%（213瓦）和78%（345瓦）。站立、2.5、4和5.5千米·小时时预测代谢率与测量代谢率之间的平均偏差（95%一致性界限）分别为47瓦（19至75瓦）；-111瓦（-172至-49瓦）；-122瓦（-189至-54瓦）和-158瓦（-245至-72瓦）。潘多夫方程显著低估了移动过程中测量的代谢率。这些发现对EOD技术人员的训练和操作具有实际意义，在制定最大工作量持续时间模型和工作休息时间表时应予以考虑。从业者总结：我们采用严谨的方法设计，量化了穿着EOD服装时移动过程中的代谢率。我们首次证明，穿着该装备时的代谢率高于潘多夫方程预测的值。这些原始发现对EOD训练和操作具有重要意义。
