Kim Kangwon, Hwang Kitae, Park Woojin
Department of Industrial Engineering, Seoul National University, Seoul, South Korea.
Institute for Industrial Systems Innovation, Seoul National University, Seoul, South Korea.
Hum Factors. 2025 Apr;67(4):301-330. doi: 10.1177/00187208241276267. Epub 2024 Oct 14.
This study investigated the effects of mass and vertical center-of-mass position of combat items attached to a tactical vest, as well as marksmanship posture on rifle marksmanship performance, postural sway, and perceived workload during a simulated rifle shooting task.
A tactical vest serves as a load carriage system in addition to providing body protection. Its design, particularly the mass and vertical position of attached combat items, may impact postural control during rifle shooting and thus marksmanship performance.
Thirty-two participants performed a simulated rifle shooting task on a force plate with a tactical vest on. Three independent variables were considered: load mass (4 levels), vertical load center-of-mass position (4 levels), and marksmanship posture (2 levels). The dependent variables were: 6 rifle marksmanship performance measures, 7 postural sway measures, and a perceived workload measure.
Heavier load mass significantly degraded rifle marksmanship performance, and increased postural sway and perceived workload. Marksmanship posture significantly affected rifle marksmanship performance and postural sway. The kneeling posture resulted in less postural sway and better marksmanship performance than the standing posture. Vertical load center-of-mass position affected only part of the marksmanship performance measures and did not affect the measures of postural sway and perceived workload.
Reducing combat item mass on tactical vests and enhancing soldier postural control ability would improve rifle marksmanship and soldier lethality.
The study findings inform the development of future military tactical vests and rifle marksmanship training, highlighting the need for lightweight gear design and postural control training.
本研究调查了战术背心上附着的战斗装备的质量和垂直质心位置，以及射击姿势对模拟步枪射击任务期间步枪射击性能、姿势摆动和感知工作量的影响。
战术背心除了提供身体防护外，还作为一种负载携带系统。其设计，特别是附着战斗装备的质量和垂直位置，可能会影响步枪射击时的姿势控制，从而影响射击性能。
32名参与者穿着战术背心在测力板上执行模拟步枪射击任务。考虑了三个自变量：负载质量（4个水平）、垂直负载质心位置（4个水平）和射击姿势（2个水平）。因变量包括：6项步枪射击性能指标、7项姿势摆动指标和1项感知工作量指标。
较重的负载质量显著降低了步枪射击性能，增加了姿势摆动和感知工作量。射击姿势显著影响步枪射击性能和姿势摆动。跪姿比站姿导致的姿势摆动更小，射击性能更好。垂直负载质心位置仅影响部分射击性能指标，对姿势摆动和感知工作量指标没有影响。
减轻战术背心上战斗装备的质量并提高士兵的姿势控制能力将提高步枪射击水平和士兵杀伤力。
研究结果为未来军事战术背心的开发和步枪射击训练提供了参考，强调了轻量级装备设计和姿势控制训练的必要性。
