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Effect of carrying different military equipment during a fatigue test on shooting performance

机译：携带不同军用设备在疲劳试验中携带不同军用装备的影响

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This study investigated the effect of a 3-km walking test (3kWT) carrying different military equipment on shooting performance, rating of perceived exertion (RPE), heart rate (HR), and test time. The relative combat wear and backpack weight (as percentage of soldier's body weight [%BW]) was reported and, along with HR, its relationship to marksmanship variables was tested. Thirty-nine Spanish Army males walked as fast as possible to complete the 3kWT in the following conditions in a randomized order: unloaded walking; wearing the combat uniform; and carrying the combat uniform plus combat backpack. A shooting test was completed before and after the 3kWT. The HR and RPE were evaluated. The marksmanship variables and HR were analysed using a two-way repeated measures ANOVA, and a repeated ANOVA was also used for 3kWT completion time and HR reserve analysis. Correlation analyses were performed between the equipment's weight, HR, and marksmanship variables. The results showed that shooting score decreased after the 3kWT in both load conditions (p 0.001). The 3kWT time, RPE, and HR increased from control to load conditions, and also between load conditions. The HR reserve showed no significant effects between conditions. The %BW of the backpack condition negatively influenced aiming accuracy (r = -0.35; p = 0.04) and cleanness triggering (r = 0.37; p = 0.03). Correlations between HR and shooting variables were non-significant. In conclusion, wearing the Spanish Army combat wear and backpack resulted in shooting performance degradation. Furthermore, fatigue and RPE increased and this could decrease physical marksmanship and performance capacity in combat situations.
机译：本研究调查了3公里行走试验（3KWT）携带不同军用设备对拍摄性能，感知劳累（RPE），心率（HR）和测试时间的额定等级的影响。报告了相对作战磨损和背包重量（作为士兵体重[％BW]的百分比），并且与人力资源一起测试其与造型变量的关系。三十九西班牙雄性男性尽可能快地走得尽可能快地完成3KWT，以随机顺序排列：卸载步行;穿着战斗制服;并携带作战制服加战斗背包。在3KWT之前和之后完成了拍摄测试。评估HR和RPE。使用双向重复测量ANOVA分析造型变量和HR，并且重复的ANOVA也用于3KWT完成时间和HR储备分析。在设备的权重，人力资源和造型变量之间进行相关分析。结果表明，在负载条件下3KWT后，拍摄得分降低（P <0.001）。 3KWT时间，RPE和HR从控制增加到负载条件，以及负载条件之间。人力资源管理局在条件下没有显着影响。背包条件的％BW对瞄准精度产生负面影响（r = -0.35; p = 0.04）和清洁触发（r = 0.37; p = 0.03）。人力资源和拍摄变量之间的相关性是非显着的。总之，穿着西班牙军队作战磨损和背包导致射击性能下降。此外，疲劳和RPE增加，这可能会降低战斗情况下的物理痕迹和性能能力。

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