Human Movement Sciences, State University of Santa Catarina, Rua Pascoal Simone, Florianópolis, Santa Catarina, Brazil.
Physiotherapy, Graduate Physiotherapy Programs, State University of Santa Catarina, Florianópolis, Santa Catarina, Brazil.
Physiother Res Int. 2024 Jan;29(1):e2052. doi: 10.1002/pri.2052. Epub 2023 Oct 11.
To evaluate and compare performance in the modified shuttle walk test (MSWT) with cardiorespiratory parameters and respiratory muscle strength in children with cystic fibrosis (CF) and healthy controls.
A cross-sectional study with children divided into the CF group (CFG) and healthy control group (HCG). Two MSWTs were performed and the data from the test with the longest distance walked and its cardiorespiratory parameters (blood pressure, respiratory rate, heart rate (HR), oxygen saturation, and dyspnea sensation) were considered, the last three every 4 levels. Respiratory muscle strength was evaluated using a manometer. The Wilcoxon test was used to compare the parameters before and after the MSWT, and the Mann-Whitney and independent t-tests were applied to compare the data between the groups. The distance walked and its association with the variation in cardiorespiratory parameters and respiratory muscle strength were analyzed by Spearman's correlation.
Sixty-two children (31 in each group) participated, with an average age of 10.2 (2.1) years. Children with CF had poorer performance in the average distance walked (CFG 716.7 (274.3)) when compared to the HCG (948.0 (202.8)). Both groups exhibited an increase in all the cardiorespiratory parameters at the end of the test, but the CFG displayed less variation in some parameters. Children with CF presented a positive correlation between distance walked and respiratory muscle strength, HR variation, and systolic blood pressure.
There was no difference in respiratory muscle strength between the groups. In the CFG, the greater the respiratory muscle strength, the better the performance in the MSWT. The CFG exhibited less variation in cardiorespiratory parameters than the HCG.
评估并比较囊性纤维化（CF）患儿与健康对照组在改良 shuttle 步行测试（MSWT）中的表现与心肺参数和呼吸肌力量。
这是一项横断面研究，将儿童分为 CF 组（CFG）和健康对照组（HCG）。进行了两次 MSWT，考虑了最长步行距离及其心肺参数（血压、呼吸频率、心率（HR）、血氧饱和度和呼吸困难感觉）的数据，后三个参数每 4 级记录一次。使用测压计评估呼吸肌力量。使用 Wilcoxon 检验比较 MSWT 前后的参数，使用 Mann-Whitney 和独立 t 检验比较组间数据。分析步行距离及其与心肺参数和呼吸肌力量变化的相关性。
共有 62 名儿童（每组 31 名）参与，平均年龄为 10.2（2.1）岁。与 HCG（948.0（202.8）相比，CF 患儿的平均步行距离（CFG 716.7（274.3））较差。两组在测试结束时所有心肺参数均增加，但 CFG 某些参数的变化较小。CF 患儿的步行距离与呼吸肌力量、HR 变化和收缩压之间存在正相关。
两组之间的呼吸肌力量没有差异。在 CFG 中，呼吸肌力量越大，MSWT 表现越好。与 HCG 相比，CFG 心肺参数的变化较小。
