BACKGROUND Timed up and go (TUG) and sit to stand (STS) tests that required less space and easier to be performed in respiratory and cardiac diseases for assessing functionality. Aim was to test the reliability of TUG and 30-second STS (30STS) tests and determine the validity of TUG and 30STS tests in patients with Pulmonary Hypertension (PH). METHODS Thirty-eight patients with diagnosed PH were included. We collected TUG, 30STS, quadriceps muscle strength, physical activity level, and 6MWT. Intra-class correlation coefficient (ICC) was used to determine test-retest reliability and correlations with quadriceps muscle strength, physical activity level and 6MWT for validity of the TUG and 30STS tests. RESULTS The TUG and 30STS tests were associated with age, functional class, muscle strength, physical activity and functional exercise capacity in patients with PAH (p < 0.05). 6MWT was associated with age, functional class, muscle strength, physical activity and functional exercise capacity (p < 0.05). ICC (95%) for TUG test and 30STS were 0.96 (0.93-0.98) and 0.95 (0.90-0.97), respectively. CONCLUSIONS The TUG and 30STS tests were reliable and valid tests for measuring physical performance in PH. This study supports using the TUG and 30STS tests as practical assessment tools in patients with PH.

中文翻译：

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肺动脉高压患者的定时重试和30秒静坐试验的重试信度和效度。

背景技术定时呼吸（TUG）和坐直站立（STS）测试需要较小的空间，并且在呼吸系统疾病和心脏病中更易于进行以评估功能。目的是测试TUG和30秒STS（30STS）测试的可靠性，并确定TUG和30STS测试在肺动脉高压（PH）患者中的有效性。方法纳入38例诊断为PH的患者。我们收集了TUG，30STS，股四头肌肌肉强度，体力活动水平和6MWT。类内相关系数（ICC）用于确定重测信度以及与股四头肌肌肉强度，体力活动水平和6MWT的相关性，以确保TUG和30STS测试的有效性。结果TUG和30STS测试与年龄，功能等级，肌肉力量，PAH患者的身体活动和功能锻炼能力（p <0.05）。6MWT与年龄，功能等级，肌肉力量，身体活动和功能锻炼能力有关（p <0.05）。TUG测试和30STS的ICC（95％）分别为0.96（0.93-0.98）和0.95（0.90-0.97）。结论TUG和30STS测试是测量PH物理性能的可靠且有效的测试。这项研究支持将TUG和30STS测试用作PH患者的实用评估工具。结论TUG和30STS测试是测量PH物理性能的可靠且有效的测试。这项研究支持将TUG和30STS测试用作PH患者的实用评估工具。结论TUG和30STS测试是测量PH物理性能的可靠且有效的测试。这项研究支持将TUG和30STS测试用作PH患者的实用评估工具。