Abstract：
UNASSIGNED: Load carriage tasks during United States Marine Corps (USMC) recruit training can cause injury. Load carriage conditioning, if optimized, can reduce injury risk.
UNASSIGNED: To compare injuries sustained by USMC recruits following participation in either the Original Load Carriage (OLC) program or a Modified Load Carriage (MLC) program.
UNASSIGNED: Retrospective musculoskeletal injury data were drawn from the USMC San Diego Sports Medicine injury database for recruits completing the OLC (n = 2,363) and MLC (n = 681) programs. Data were expressed as descriptive statistics and a population estimate of the OLC:MLC relative risk ratio (RR) was calculated.
UNASSIGNED: The proportion of injuries sustained in the MLC cohort (n = 268; 39% : OLC cohort, n = 1,372 : 58%) was lower, as was the RR (0.68, 95% CI 0.61- 0.75). The leading nature of injury for both cohorts was sprains and strains (OLC n = 396, 29%; MLC n = 66; 25%). Stress reactions were proportionally higher in MLC (n = 17, 6%; OLC n = 4, 0.3%), while stress fractures were proportionately lower (MLC n = 9, 3%; OLC n = 114, 8%). Overuse injuries were lower in MLC (- 7%). The knee, lower leg, ankle, and foot were the top four bodily sites of injuries and the Small Unit Leadership Evaluation (SULE), Crucible, overuse-nonspecific, running, and conditioning hikes were within the top five most common events causing injury. The prevalence rates of moderate severity injury were similar (MLC = 23%; OLC = 24%), although MLC presented both a higher proportion and prevalence of severe injuries (MLC = 6%; OLC = 3%, respectively).
UNASSIGNED: A periodized load carriage program concurrently increased exposure to load carriage hikes while reducing injuries both during the load carriage hikes and overall.
UNASSIGNED: To compare injuries sustained by USMC recruits following participation in either the Original Load Carriage (OLC) program or a Modified Load Carriage (MLC) program.
UNASSIGNED: Retrospective musculoskeletal injury data were drawn from the USMC San Diego Sports Medicine injury database for recruits completing the OLC (n = 2,363) and MLC (n = 681) programs. Data were expressed as descriptive statistics and a population estimate of the OLC:MLC relative risk ratio (RR) was calculated.
UNASSIGNED: The proportion of injuries sustained in the MLC cohort (n = 268; 39% : OLC cohort, n = 1,372 : 58%) was lower, as was the RR (0.68, 95% CI 0.61- 0.75). The leading nature of injury for both cohorts was sprains and strains (OLC n = 396, 29%; MLC n = 66; 25%). Stress reactions were proportionally higher in MLC (n = 17, 6%; OLC n = 4, 0.3%), while stress fractures were proportionately lower (MLC n = 9, 3%; OLC n = 114, 8%). Overuse injuries were lower in MLC (- 7%). The knee, lower leg, ankle, and foot were the top four bodily sites of injuries and the Small Unit Leadership Evaluation (SULE), Crucible, overuse-nonspecific, running, and conditioning hikes were within the top five most common events causing injury. The prevalence rates of moderate severity injury were similar (MLC = 23%; OLC = 24%), although MLC presented both a higher proportion and prevalence of severe injuries (MLC = 6%; OLC = 3%, respectively).
UNASSIGNED: A periodized load carriage program concurrently increased exposure to load carriage hikes while reducing injuries both during the load carriage hikes and overall.
摘要：
■在美国海军陆战队（USMC）招募训练期间的负载运输任务可能会造成伤害。负载托架调节,如果优化，可以降低受伤风险。
■比较USMC新兵在参与原始载运车（OLC）计划或修改载运车（MLC）计划后遭受的伤害。
■回顾性肌肉骨骼损伤数据来自USMC圣地亚哥运动医学数据库，用于完成OLC（n=2,363）和MLC（n=681）计划的新兵。数据表示为描述性统计,并计算OLC:MLC相对风险比(RR)的群体估计。
■MLC队列中受伤的比例（n=268；39％：OLC队列，n=1,372：58%）较低，RR也是如此（0.68，95%CI0.61-0.75）。两个队列的主要损伤性质是扭伤和拉伤(OLCn=396,29%;MLCn=66;25%)。MLC中的应激反应成比例较高（n=17，6％；OLCn=4，0.3％），而应力性骨折比例较低(MLCn=9，3%；OLCn=114，8%)。MLC的过度使用伤害较低（-7％）。膝盖，小腿,脚踝,和脚是受伤的前四个身体部位和小单位领导评估(SULE)，坩埚,过度使用-非特定，跑步,和条件升高是导致伤害的前五名最常见事件。中度严重伤害的患病率相似（MLC=23％；OLC=24％），尽管MLC在严重伤害中的比例和患病率均较高（MLC=6％；OLC=3％，分别)。
■定期装卸车计划同时增加了对装卸车远足的暴露，同时减少了装卸车远足期间和整体伤害。
■比较USMC新兵在参与原始载运车（OLC）计划或修改载运车（MLC）计划后遭受的伤害。
■回顾性肌肉骨骼损伤数据来自USMC圣地亚哥运动医学数据库，用于完成OLC（n=2,363）和MLC（n=681）计划的新兵。数据表示为描述性统计,并计算OLC:MLC相对风险比(RR)的群体估计。
■MLC队列中受伤的比例（n=268；39％：OLC队列，n=1,372：58%）较低，RR也是如此（0.68，95%CI0.61-0.75）。两个队列的主要损伤性质是扭伤和拉伤(OLCn=396,29%;MLCn=66;25%)。MLC中的应激反应成比例较高（n=17，6％；OLCn=4，0.3％），而应力性骨折比例较低(MLCn=9，3%；OLCn=114，8%)。MLC的过度使用伤害较低（-7％）。膝盖，小腿,脚踝,和脚是受伤的前四个身体部位和小单位领导评估(SULE)，坩埚,过度使用-非特定，跑步,和条件升高是导致伤害的前五名最常见事件。中度严重伤害的患病率相似（MLC=23％；OLC=24％），尽管MLC在严重伤害中的比例和患病率均较高（MLC=6％；OLC=3％，分别)。
■定期装卸车计划同时增加了对装卸车远足的暴露，同时减少了装卸车远足期间和整体伤害。
