Diego A Rodríguez1,2, Ane Arbillaga2,3, Anael Barberan-Garcia2, Alba Ramirez-Sarmiento1,4, Yolanda Torralba2, Jordi Vilaró5, Elena Gimeno-Santos3, Joaquim Gea1, Mauricio Orozco-Levi1,4, Josep Roca2, Ester Marco6. 1. Pulmonology Department, Hospital del Mar, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Universitat Pompeu Fabra (UPF), CIBERES, (ISCIII), Barcelona, Spain. 2. Pulmonology Department, Hospital Clínic i Provincial de Barcelona (ICT), CIBERES, IDIBAPS, Universitat de Barcelona, Barcelona, Spain. 3. Center for Research in Environmental Epidemiology (CREAL), Barcelona, Spain. 4. Pulmonology Department, Fundación Cardiovascular de Colombia, Santander, Colombia. 5. Facultat de Ciències de la Salut Blanquerna, Universitat Ramol Llull, Barcelona, Spain. 6. Physical Medicine and Rehabilitation Department, Parc de Salut Mar (Hospital del Mar - Hospital de l'Esperança), Rehabilitation Research Group, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Universitat Autònoma de Barcelona, Universitat Internacional de Catalunya, Barcelona, Catalonia, Spain.
Abstract
BACKGROUND AND AIM: Both interval (IT) and continuous (CT) exercise training results in an improvement of aerobic capacity in patients with chronic obstructive pulmonary disease (COPD); however, their effects on cardiac autonomic function remains unclear. The aim of our study was to evaluate the effect of a supervised CT vs IT on autonomic cardiac function in COPD patients. METHODS: COPD patients were divided into two different groups according to training modality (IT or CT). Autonomic cardiac dysfunction (ACD) was defined as a heart rate recovery lower than 12 bpm heart rate after the first minute of maximal exercise (HRR1 ) and an abnormal chronotropic response (CR) to exercise (<80%). RESULTS: A total of 29 patients {mean [standard deviation (SD)] age: 68 (8) years, %FEV1 : 42 (13) predicted} were trained (15 subjects in the CT group, 14 subjects in the IT group). After training, both groups increased peak oxygen consumption [mean difference ΔVO2 peak: 156 mL/min (P = 0.04) on IT; and 210 mL/min (P = 0.01) on CT], HRR1 [IT, from 10.4 (5) to 13.8 (5) bpm (P = 0.04); and CT, from 14.3 (5) to 17.7 (5) bpm (P = 0.04)] and CR [IT, from 57% (22) to 81% (9) (P = 0.001); and CT, from 48% (28) to 73% (17) (P = 0.001)]. Sixteen patients showed ACD. Among these patients, HRR1 (P = 0.01 for IT and P = 0.04 for CT) and CR (P = 0.001 for IT and P = 0.002 for CT) were enhanced after training. CONCLUSIONS: Both IT and CT exercise training improve heart rate recovery and CR in COPD patients. These benefits could help to individualize exercise training.
BACKGROUND AND AIM: Both interval (IT) and continuous (CT) exercise training results in an improvement of aerobic capacity in patients with chronic obstructive pulmonary disease (COPD); however, their effects on cardiac autonomic function remains unclear. The aim of our study was to evaluate the effect of a supervised CT vs IT on autonomic cardiac function in COPDpatients. METHODS:COPDpatients were divided into two different groups according to training modality (IT or CT). Autonomic cardiac dysfunction (ACD) was defined as a heart rate recovery lower than 12 bpm heart rate after the first minute of maximal exercise (HRR1 ) and an abnormal chronotropic response (CR) to exercise (<80%). RESULTS: A total of 29 patients {mean [standard deviation (SD)] age: 68 (8) years, %FEV1 : 42 (13) predicted} were trained (15 subjects in the CT group, 14 subjects in the IT group). After training, both groups increased peak oxygen consumption [mean difference ΔVO2 peak: 156 mL/min (P = 0.04) on IT; and 210 mL/min (P = 0.01) on CT], HRR1 [IT, from 10.4 (5) to 13.8 (5) bpm (P = 0.04); and CT, from 14.3 (5) to 17.7 (5) bpm (P = 0.04)] and CR [IT, from 57% (22) to 81% (9) (P = 0.001); and CT, from 48% (28) to 73% (17) (P = 0.001)]. Sixteen patients showed ACD. Among these patients, HRR1 (P = 0.01 for IT and P = 0.04 for CT) and CR (P = 0.001 for IT and P = 0.002 for CT) were enhanced after training. CONCLUSIONS: Both IT and CT exercise training improve heart rate recovery and CR in COPDpatients. These benefits could help to individualize exercise training.
Authors: Diego A Rodríguez; Eleni A Kortianou; Jennifer A Alison; Alejandro Casas; Santiago Giavedoni; Anael Barberan-Garcia; Ane Arbillaga; Jordi Vilaró; Elena Gimeno-Santos; Ioannis Vogiatzis; Roberto Rabinovich; Josep Roca Journal: Lung Date: 2017-06-17 Impact factor: 2.584
Authors: Catherine F S Marriott; Andrea F M Petrella; Emily C S Marriott; Narlon C Boa Sorte Silva; Robert J Petrella Journal: Sports Med Open Date: 2021-07-19