PURPOSE To investigate the feasibility and safety of a randomized controlled trial that performed cardiopulmonary exercise testing and 12 weeks of aerobic treadmill training in individuals in the chronic phase after stroke. METHODS The following data were recorded: number of individuals contacted to participate, that attended in the evaluation session, and that were included (recruited) in the study; retention, attendance and adherence rates; reasons for exclusion, withdrawal, non-attendance and non-completing exercise; adverse events. RESULTS From 230 individuals that were contacted, 39 (17%) attended the evaluation session and 22 (9.6%) were recruited in the study, 11 in each group (control and experimental). The main source of recruitment was other research projects (43.5%). The main reason for exclusion was unavailability (22%). Six out of 39 individuals (15.4%) that attended in the evaluation session were not able to perform the cardiopulmonary exercise testing. All subjects included showed a respiratory exchange ratio ≥1.0 (considered as maximal effort in the CPET). Retention rate was 81% and the main reason of withdrawal was unavailability (75%). The overall attendance rate was 88% and the main reason for non-attendance was illness/sickness (20.8%). The adherence rate was 99% and the reasons for non-completing sessions were illness/sickness (60%) or delay (40%). No serious adverse events occurred. CONCLUSION Recruitment rate was low, retention rate was moderate, attendance and adherence rates were high. No serious adverse events occurred. It was feasible and safe to execute a randomized clinical trial that performed cardiopulmonary exercise testing and 12 weeks of aerobic treadmill training.

中文翻译：

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脑卒中后的心肺运动测试和有氧跑步机训练：一项对照试验的可行性。

目的探讨一项随机对照试验的可行性和安全性，该试验对中风后慢性期的个体进行心肺运动试验和有氧跑步机训练12周。方法记录以下数据：接触参加试验，参加评估会议并纳入（招募）研究的人数；保留率，出勤率和遵守率；排除，退出，不参加和不参加演习的原因；不良事件。结果从接触的230位个体中，有39位（17％）参加了评估会议，并在研究中招募了22位（9.6％），每组11位（对照组和实验组）。招聘的主要来源是其他研究项目（43.5％）。排除的主要原因是不可用（22％）。参加评估会议的39个人中有6个人（15.4％）无法进行心肺运动测试。包括的所有受试者的呼吸交换率均≥1.0（在CPET中被认为是最大的努力）。保留率是81％，退出的主要原因是无法使用（75％）。总体出勤率为88％，而缺勤的主要原因是疾病/不适（20.8％）。依从率为99％，未完成课程的原因是疾病/不适（60％）或延误（40％）。没有发生严重的不良事件。结论招募率低，保留率中等，出勤率和坚持率高。没有发生严重的不良事件。