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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Association Between the Predictors of Functional Capacity and Heart Rate Off-Kinetics in Patients with Chronic Obstructive Pulmonary Disease

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Camargo, Patricia Faria [1] ; Ditomaso-Luporini, Luciana [1] ; Soares de Carvalho Jr, Luiz Carlos ; Goulart, Cassia da Luz [1] ; Sebold, Rayane [1, 2] ; dos Santos, Polliana Batista [1] ; Roscani, Meliza Goi [3] ; Borghi-Silva, Audrey [1]
Total Authors: 8
[1] Univ Fed Sao Carlos, Physiotherapy Dept, Cardiopulm Physiotherapy Lab, Sao Paulo - Brazil
[2] Cent Paulista Univ Ctr, Course Physiotherapy, Sao Carlos, SP - Brazil
[3] Univ Fed Sao Carlos, Med Dept, Sao Carlos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Web of Science Citations: 0

Background: The heart rate (HR) kinetics as well as other predictors of functional capacity such as the Chronic Obstructive Pulmonary Disease (COPD) Assessment Test (CAT), the Duke Activity Status Index (DASI) and the handgrip strength (HGS) represent important tools in assessing the impact of COPD on exercise performance and health status of individuals with COPD. Purpose: To verify the relationship between functional capacity, measured using the six-minute walking test (6MWT), with the HR off-kinetics, HGS and the DASI and CAT scores. Methods: For this cross-sectional study, 29 subjects with COPD underwent body composition, pulmonary function and cardiac function tests. Subsequently, the DASI and CAT questionnaires and HGS test were performed. The beat-to-beat R-R intervals (IRR) were collected in rest, during the test and in recovery after the 6MWT. The HR off-kinetics was obtained during a 360-second period in post-exercise recovery through the HR mono-exponential decay. Results: Moderate correlations were observed between: 1) walked distance (WD) in the 6MWT and the CAT and DASI scores (r= -0.58, p=0.001 and r= 0.58, p=0.001, respectively); 2) WD and HGS (r=0.37, p=0.05); 3) and WD and HR off-kinetics (t; r= -0.54, p=0.002 and MRT; r= -0.55, p=0.002, respectively). Conclusion: The 6MWT performance is a direct measurement to evaluate functional capacity. Additionally, it is related to other direct and indirect markers for functional evaluation in patients with COPD. These results suggest the application of these tools in clinical practice, based on the accessibility, non-invasive character and easy applicability of these methods. (AU)

FAPESP's process: 15/26501-1 - Study of limiting factors to physical exercise and adjunct effects to rehabilitation on cardiorespiratory disease: a multicentre approach
Grantee:Audrey Borghi e Silva
Support type: Research Projects - Thematic Grants
FAPESP's process: 18/00860-3 - Evaluation of cardiac autonomic modulation and functional capacity in the overlap of Chronic Obstructive Pulmonary Disease and Obstructive Sleep Apnea Syndrome: a follow-up study
Grantee:Patrícia Faria Camargo
Support type: Scholarships in Brazil - Doctorate (Direct)