Importance:The 3-min step test is a simple option to monitor submaximal exercise capacity,although its use via remote video monitoring has not been investigated in children with cystic fibrosis(CF).Objective:This stud...Importance:The 3-min step test is a simple option to monitor submaximal exercise capacity,although its use via remote video monitoring has not been investigated in children with cystic fibrosis(CF).Objective:This study aimed to assess the feasibility and reproducibility of performing the 3-min step test with remote supervision.Methods:A cross-sectional study including CF patients(6-18 years)from two CF services were performed.Demographic,anthropometric,clinical,and lung function data were collected and two 3-min step tests were performed:(i)in-person supervision,and(ii)remotely supervised by video monitoring.Before and after the tests,heart rate(HR),oxygen saturation(SpO_(2)),and the Borg score for dyspnea and lower limb fatigue were monitored.Results:Twenty-three patients(10.7±3.7 years)with a mean FEV1 of 89.5%±23.2%were included.There were no significant differences between tests,with mean differences(95%confidence intervals)in final HR of-3.3(-8.9,2.4),change in HR of-1.9(-6.1,2.1),final SpO_(2) of 0.3(-0.4,1.0),and final dyspnea of 0.1(-0.8,0.9).The intraclass correlation coefficient was 0.852(final HR),0.762(final SpO_(2)),and 0.775(final lower limb fatigue).Significant and moderate correlations were found between tests for final HR(r=0.75),change in HR(r=0.61),and final SpO_(2)(r=0.61).The Bland-Altman analysis showed a mean difference in final SpO_(2) between tests of 0.3%(limit of agreement-3.0%,3.5%).Interpretation:Physiological responses between tests were similar,indicating it was feasible to perform the 3-min step test with remote supervision in CF children.展开更多
基金Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior-Brazil(CAPES)-Finance Code 001Conselho Nacional de Desenvolvimento Cientifico e Tecnologico。
文摘Importance:The 3-min step test is a simple option to monitor submaximal exercise capacity,although its use via remote video monitoring has not been investigated in children with cystic fibrosis(CF).Objective:This study aimed to assess the feasibility and reproducibility of performing the 3-min step test with remote supervision.Methods:A cross-sectional study including CF patients(6-18 years)from two CF services were performed.Demographic,anthropometric,clinical,and lung function data were collected and two 3-min step tests were performed:(i)in-person supervision,and(ii)remotely supervised by video monitoring.Before and after the tests,heart rate(HR),oxygen saturation(SpO_(2)),and the Borg score for dyspnea and lower limb fatigue were monitored.Results:Twenty-three patients(10.7±3.7 years)with a mean FEV1 of 89.5%±23.2%were included.There were no significant differences between tests,with mean differences(95%confidence intervals)in final HR of-3.3(-8.9,2.4),change in HR of-1.9(-6.1,2.1),final SpO_(2) of 0.3(-0.4,1.0),and final dyspnea of 0.1(-0.8,0.9).The intraclass correlation coefficient was 0.852(final HR),0.762(final SpO_(2)),and 0.775(final lower limb fatigue).Significant and moderate correlations were found between tests for final HR(r=0.75),change in HR(r=0.61),and final SpO_(2)(r=0.61).The Bland-Altman analysis showed a mean difference in final SpO_(2) between tests of 0.3%(limit of agreement-3.0%,3.5%).Interpretation:Physiological responses between tests were similar,indicating it was feasible to perform the 3-min step test with remote supervision in CF children.
