Abstract：
UNASSIGNED: Data on cardiopulmonary fitness in older adults in the longer term after coronavirus disease 2019 (COVID-19) are of interest as the time required for the full recovery of physical fitness after COVID-19 remains unclear. Some studies have reported that patients do not recover physical fitness for up to 6 or 12 months after COVID-19, whereas other studies have observed full recovery after 12-months. Therefore, this study evaluated and compared the cardiopulmonary responses induced by the 6-minute walk test (6MWT) and 1-minute sit-to-stand-test (STST) results at 3, 6, and 12 months in older adults with and without COVID-19.
UNASSIGNED: This study included 59 older adults with and without a history of COVID-19. The cardiopulmonary response parameters including heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), pulse oxygen saturation (O2 sat), rate of perceived exertion (RPE), and leg fatigue were evaluated in the participants after 6MWT and 1-min-STST assessments.
UNASSIGNED: Post-COVID-19, older adults showed statistically significant differences in HR, SBP, DBP, O2 sat, RPE, leg fatigue, 6MWT time, and 1-min-STST step numbers at 3, 6, and 12 months (P < 0.001). Moreover, older adults showed statistically significant differences in HR, SBP, DBP, RPE, leg fatigue, O2 sat, and 6MWT distance at 3 months post-COVID-19 compared with those in older adults without COVID-19 (P < 0.001).
UNASSIGNED: While older adults showed recovery of cardiopulmonary response parameters according to 6MWT and 1-min-STST findings at the 12-month follow-up post-COVID-19, these results of these measurements did not return to the values observed in older adults without COVID-19.
UNASSIGNED: This study included 59 older adults with and without a history of COVID-19. The cardiopulmonary response parameters including heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), pulse oxygen saturation (O2 sat), rate of perceived exertion (RPE), and leg fatigue were evaluated in the participants after 6MWT and 1-min-STST assessments.
UNASSIGNED: Post-COVID-19, older adults showed statistically significant differences in HR, SBP, DBP, O2 sat, RPE, leg fatigue, 6MWT time, and 1-min-STST step numbers at 3, 6, and 12 months (P < 0.001). Moreover, older adults showed statistically significant differences in HR, SBP, DBP, RPE, leg fatigue, O2 sat, and 6MWT distance at 3 months post-COVID-19 compared with those in older adults without COVID-19 (P < 0.001).
UNASSIGNED: While older adults showed recovery of cardiopulmonary response parameters according to 6MWT and 1-min-STST findings at the 12-month follow-up post-COVID-19, these results of these measurements did not return to the values observed in older adults without COVID-19.
摘要：
■关于2019年冠状病毒病(COVID-19)后老年人长期心肺健康状况的数据令人感兴趣，因为COVID-19后身体健康状况完全恢复所需的时间尚不清楚。一些研究报告说，患者在COVID-19后6或12个月内无法恢复身体健康，而其他研究则观察到12个月后完全康复。因此,本研究评估并比较了6分钟步行试验(6MWT)和1分钟坐姿试验(STST)结果在3个月、6个月和12个月时在有或无COVID-19的老年人中引起的心肺反应.
■这项研究包括59名有和没有COVID-19病史的老年人。心肺反应参数包括心率（HR），收缩压（SBP），舒张压（DBP），脉搏氧饱和度（O2sat），感知努力率(RPE)，在6MWT和1min-STST评估后，对参与者进行腿部疲劳评估。
■COVID-19后，老年人在HR方面表现出统计学上的显着差异，SBP,DBP,O2坐，RPE,腿部疲劳,6MWT时间，3、6和12个月时的1min-STST步数（P<0.001）。此外，老年人在HR方面表现出统计学上的显着差异，SBP,DBP,RPE,腿部疲劳,O2坐，与无COVID-19的老年人相比，COVID-19后3个月的6MWT距离（P<0.001）。
■虽然在COVID-19后的12个月随访中，根据6MWT和1分钟STST结果，老年人显示心肺反应参数恢复，但这些测量结果没有恢复到没有COVID-19的老年人的观察值。
■这项研究包括59名有和没有COVID-19病史的老年人。心肺反应参数包括心率（HR），收缩压（SBP），舒张压（DBP），脉搏氧饱和度（O2sat），感知努力率(RPE)，在6MWT和1min-STST评估后，对参与者进行腿部疲劳评估。
■COVID-19后，老年人在HR方面表现出统计学上的显着差异，SBP,DBP,O2坐，RPE,腿部疲劳,6MWT时间，3、6和12个月时的1min-STST步数（P<0.001）。此外，老年人在HR方面表现出统计学上的显着差异，SBP,DBP,RPE,腿部疲劳,O2坐，与无COVID-19的老年人相比，COVID-19后3个月的6MWT距离（P<0.001）。
■虽然在COVID-19后的12个月随访中，根据6MWT和1分钟STST结果，老年人显示心肺反应参数恢复，但这些测量结果没有恢复到没有COVID-19的老年人的观察值。
