Nielsen Susanne Grøn, Buus Lise, Hage Tine, Olsen Heidi, Walsøe Martin, Vinther Anders
Department of Physiotherapy, Nordsjællands Hospital (Mss Nielsen, Buus, and Hage), and Health Center, Hillerød Municipal (Ms Olsen), Hillerød, Denmark; The Danish Heart Foundation, Copenhagen, Denmark (Mr Walsøe); and Department of Physiotherapy, Herlev Hospital, Herlev, Denmark (Dr Vinther).
J Cardiopulm Rehabil Prev. 2014 Jul-Aug;34(4):276-80. doi: 10.1097/HCR.0000000000000067.
To assess relative reliability and measurement error of the Graded Cycling Test (GCT) with the Talk Test (TT) for patients with cardiac disease.
Patients (N = 64; women, n = 30) with ischemic heart disease performed the GCT with the TT twice in 1 day. Every minute the patient recited a text passage of 30 words. The question "Are you still able to speak comfortably?" was then answered: "Yes" (TT+), "Not sure" (TT±), or "No" (TT-). Two physiotherapists (PTs) rated when the speaking ability was affected by ventilation. Relative reliability: intraclass correlation coefficient (ICC)2.1 and absolute reliability: standard error of measurement with 95% CI (SEM95) and smallest real difference (SRD) were calculated.
Intraclass correlation coefficient values of 0.90, 0.91, and 0.90 were observed for TT+, TT±, and TT-, respectively. Physiotherapist ICCs ranged between 0.81 and 0.88. SEM95 ranged between 17.2 and 18.3 watts (W), with corresponding SRD values between 24.4 and 25.9 W for the patient ratings. The PT ratings ranged between 15.8 and 21.4 W (SEM95) and between 22.3 and 30.3 W (SRD).
The TT, combined with the GCT, was well tolerated by patients with cardiac disease in clinical settings with small measurement error and an excellent relative reliability. These results apply to both patient-rated and PT-rated TT.
评估分级运动试验（GCT）联合言语测试（TT）在心脏病患者中的相对可靠性和测量误差。
64例（女性30例）缺血性心脏病患者在1天内进行两次GCT联合TT。每分钟患者背诵一段30个单词的文本段落，然后回答“你仍然能够轻松说话吗？”这个问题，答案为“是”（TT+）、“不确定”（TT±）或“否”（TT-）。两名物理治疗师（PT）对说话能力受通气影响的情况进行评分。计算相对可靠性：组内相关系数（ICC）2.1，以及绝对可靠性：测量标准误差及95%置信区间（SEM95）和最小真实差异（SRD）。
TT+、TT±和TT-的组内相关系数值分别为0.90、0.91和0.90。物理治疗师的ICC在0.81至0.88之间。患者评分的SEM95在17.2至18.3瓦（W）之间，相应的SRD值在24.4至25.9 W之间。物理治疗师的评分范围为15.8至21.4 W（SEM95）和22.3至30.3 W（SRD）。
在临床环境中，心脏病患者对TT联合GCT耐受性良好，测量误差小，相对可靠性极佳。这些结果适用于患者自评和物理治疗师评定的TT。
