Aerosp Med Hum Perform. 2021 Feb 1;92(2):92-98. doi: 10.3357/AMHP.5614.2021.
The effects of seasickness on working performance during motion exposure have been reported, while the aftereffects on working ability and life quality decline (WLD) still remain unclarified. Two cohorts of healthy male Chinese subjects received either a single (SSV) or repeated (RSV) sea voyage training program on different vessels. A seasickness incidence (SSI) questionnaire was administered to assess the prevalence of seasickness symptoms (vomiting, nausea, other, or no symptoms). A WLD questionnaire was used to survey the general feeling of WLD (severe, moderate, slight, and none) by a 4-point score as well as the incidence rate (IR) of specific WLD items within 24 h after landing. The RSV cohort had lower overall IR of WLD than the SSV cohort (54.64% vs. 63.78%, 657 for both cohorts). The landing ship trainees in both cohorts showed higher general WLD score and higher IRs of physical fatigue, sleep disorder, and spontaneous locomotion decrement than those trained on the small vessels. Subjects with vomiting or nausea had higher general WLD score and higher IRs of concentration distraction, physical fatigue, anorexia, and spontaneous locomotion decrement than those with no symptoms. Higher IRs of firing accuracy decline (SSV: 21.35% vs. 7.13%, 9.14%; RSV: 22.11% vs. 9.28%, 5.27%), equipment operation disturbance (SSV: 16.85% vs. 3.57%, 6.85%; RSV: 20.47% vs. 7.85%, 7.03%) were also observed in the vomiting subjects than those with other symptoms and no symptoms. Significant WLD after landing was associated with transportation types, seasickness severity, and habituation during sea voyage training.
晕动病对运动暴露期间工作表现的影响已有报道，但其对工作能力和生活质量下降（WLD）的后续影响仍不清楚。两组健康的中国男性受试者分别在不同的船只上接受单次（SSV）或重复（RSV）航海训练计划。使用晕动病发生率（SSI）问卷评估晕动病症状（呕吐、恶心、其他或无症状）的流行程度。使用 WLD 问卷通过 4 分制调查 WLD 的一般感觉（严重、中度、轻度和无）以及着陆后 24 小时内特定 WLD 项目的发生率（IR）。RSV 队列的总 WLD 发生率低于 SSV 队列（54.64% vs. 63.78%，两个队列均为 657）。两队列的登陆艇学员的总体 WLD 评分较高，且较易出现身体疲劳、睡眠障碍和自发运动减退的发生率较高，而在小艇上训练的学员则较低。有呕吐或恶心症状的受试者的一般 WLD 评分较高，注意力分散、身体疲劳、食欲不振和自发运动减退的发生率较高，而无症状的受试者则较低。呕吐或恶心受试者的射击精度下降发生率（SSV：21.35% vs. 7.13%，9.14%；RSV：22.11% vs. 9.28%，5.27%）和设备操作干扰发生率（SSV：16.85% vs. 3.57%，6.85%；RSV：20.47% vs. 7.85%，7.03%）也高于其他症状和无症状的受试者。着陆后的显著 WLD 与运输类型、晕动病严重程度和航海训练期间的适应有关。
