Singla Rupak, Rai Richa, Faye Abhishek Anil, Jain Anil Kumar, Chowdhury Ranadip, Bandyopadhyay Debdutta
Department of Tuberculosis and Respiratory Diseases, National Institute of Tuberculosis and Respiratory Diseases, New Delhi, India.
Department of Physiotherapy, Banarsidas Chandiwala Institute of Physiotherapy, New Delhi, India.
Lung India. 2017 Nov-Dec;34(6):517-521. doi: 10.4103/0970-2113.217571.
The audio signal in the conventionally accepted protocol of shuttle walk test (SWT) is not well-understood by the patients and modification of the audio signal may improve the performance of the test.
The aim of this study is to study the validity and reliability of an audio signal modified SWT, called the Singla-Richa modified SWT (SWTSR), in healthy normal adults.
In SWTSR, the audio signal was modified with the addition of reverse counting to it. A total of 54 healthy normal adults underwent conventional SWT (CSWT) at one instance and two times SWTSRon the same day. The validity was assessed by comparing outcomes of the SWTSRto outcomes of CSWT using the Pearson correlation coefficient and Bland-Altman plot. Test-retest reliability of SWTSRwas assessed using the intraclass correlation coefficient (ICC). The acceptability of the modified test in comparison to the conventional test was assessed using Likert scale.
The distance walked (mean ± standard deviation) in the CSWT and SWTSRtest was 853.33 ± 217.33 m and 857.22 ± 219.56 m, respectively (Pearson correlation coefficient - 0.98; P < 0.001) indicating SWTSRto be a valid test. The SWTSRwas found to be a reliable test with ICC of 0.98 (95% confidence interval: 0.97-0.99). The acceptability of SWTSRwas significantly higher than CSWT.
The SWTSRwith modified audio signal with reverse counting is a reliable as well as a valid test when compared with CSWT in healthy normal adults. It better understood by subjects compared to CSWT.
穿梭步行试验（SWT）传统公认方案中的音频信号患者理解不佳，修改音频信号可能会提高该试验的性能。
本研究旨在探讨一种修改了音频信号的SWT，即辛格拉 - 里查改良穿梭步行试验（SWTSR）在健康正常成年人中的有效性和可靠性。
在SWTSR中，通过添加倒数来修改音频信号。共有54名健康正常成年人在某一时刻进行了传统穿梭步行试验（CSWT），并在同一天进行了两次SWTSR。通过使用皮尔逊相关系数和布兰德 - 奥特曼图将SWTSR的结果与CSWT的结果进行比较来评估有效性。使用组内相关系数（ICC）评估SWTSR的重测信度。使用李克特量表评估改良试验与传统试验相比的可接受性。
CSWT和SWTSR试验中的步行距离（均值±标准差）分别为853.33±217.33米和857.22±219.56米（皮尔逊相关系数 - 0.98；P < 0.001），表明SWTSR是一项有效的试验。发现SWTSR是一项可靠的试验，ICC为0.98（95%置信区间：0.97 - 0.99）。SWTSR的可接受性显著高于CSWT。
与健康正常成年人的CSWT相比，带有倒数修改音频信号的SWTSR是一项可靠且有效的试验。与CSWT相比，受试者对其理解更好。
