Effects of continuous vs interval exercise training on oxygen uptake efficiency slope in patients with coronary artery disease
The oxygen uptake efficiency slope (OUES) is a submaximal index incorporating cardiovascular, peripheral, and pulmonary factors that determine the ventilatory response to exercise. The purpose of this study was to evaluate the effects of continuous exercise training and interval exercise training on...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Divulgação Científica
2016-01-01
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| Series: | Brazilian Journal of Medical and Biological Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000200703&lng=en&tlng=en |
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| author | D.M.L. Prado E.A. Rocco A.G. Silva D.F. Rocco M.T. Pacheco P.F. Silva V. Furlan |
| author_facet | D.M.L. Prado E.A. Rocco A.G. Silva D.F. Rocco M.T. Pacheco P.F. Silva V. Furlan |
| author_sort | D.M.L. Prado |
| collection | DOAJ |
| description | The oxygen uptake efficiency slope (OUES) is a submaximal index incorporating cardiovascular, peripheral, and pulmonary factors that determine the ventilatory response to exercise. The purpose of this study was to evaluate the effects of continuous exercise training and interval exercise training on the OUES in patients with coronary artery disease. Thirty-five patients (59.3±1.8 years old; 28 men, 7 women) with coronary artery disease were randomly divided into two groups: continuous exercise training (n=18) and interval exercise training (n=17). All patients performed graded exercise tests with respiratory gas analysis before and 3 months after the exercise-training program to determine ventilatory anaerobic threshold (VAT), respiratory compensation point, and peak oxygen consumption (peak VO2). The OUES was assessed based on data from the second minute of exercise until exhaustion by calculating the slope of the linear relation between oxygen uptake and the logarithm of total ventilation. After the interventions, both groups showed increased aerobic fitness (P<0.05). In addition, both the continuous exercise and interval exercise training groups demonstrated an increase in OUES (P<0.05). Significant associations were observed in both groups: 1) continuous exercise training (OUES and peak VO2 r=0.57; OUES and VO2 VAT r=0.57); 2) interval exercise training (OUES and peak VO2 r=0.80; OUES and VO2 VAT r=0.67). Continuous and interval exercise training resulted in a similar increase in OUES among patients with coronary artery disease. These findings suggest that improvements in OUES among CAD patients after aerobic exercise training may be dependent on peripheral and central mechanisms. |
| first_indexed | 2024-04-13T14:22:25Z |
| format | Article |
| id | doaj.art-ef4bb0c4eedd4e22a44068e8edbe9da1 |
| institution | Directory Open Access Journal |
| issn | 1414-431X |
| language | English |
| last_indexed | 2024-04-13T14:22:25Z |
| publishDate | 2016-01-01 |
| publisher | Associação Brasileira de Divulgação Científica |
| record_format | Article |
| series | Brazilian Journal of Medical and Biological Research |
| spelling | doaj.art-ef4bb0c4eedd4e22a44068e8edbe9da12022-12-22T02:43:26ZengAssociação Brasileira de Divulgação CientíficaBrazilian Journal of Medical and Biological Research1414-431X2016-01-0149210.1590/1414-431X20154890S0100-879X2016000200703Effects of continuous vs interval exercise training on oxygen uptake efficiency slope in patients with coronary artery diseaseD.M.L. PradoE.A. RoccoA.G. SilvaD.F. RoccoM.T. PachecoP.F. SilvaV. FurlanThe oxygen uptake efficiency slope (OUES) is a submaximal index incorporating cardiovascular, peripheral, and pulmonary factors that determine the ventilatory response to exercise. The purpose of this study was to evaluate the effects of continuous exercise training and interval exercise training on the OUES in patients with coronary artery disease. Thirty-five patients (59.3±1.8 years old; 28 men, 7 women) with coronary artery disease were randomly divided into two groups: continuous exercise training (n=18) and interval exercise training (n=17). All patients performed graded exercise tests with respiratory gas analysis before and 3 months after the exercise-training program to determine ventilatory anaerobic threshold (VAT), respiratory compensation point, and peak oxygen consumption (peak VO2). The OUES was assessed based on data from the second minute of exercise until exhaustion by calculating the slope of the linear relation between oxygen uptake and the logarithm of total ventilation. After the interventions, both groups showed increased aerobic fitness (P<0.05). In addition, both the continuous exercise and interval exercise training groups demonstrated an increase in OUES (P<0.05). Significant associations were observed in both groups: 1) continuous exercise training (OUES and peak VO2 r=0.57; OUES and VO2 VAT r=0.57); 2) interval exercise training (OUES and peak VO2 r=0.80; OUES and VO2 VAT r=0.67). Continuous and interval exercise training resulted in a similar increase in OUES among patients with coronary artery disease. These findings suggest that improvements in OUES among CAD patients after aerobic exercise training may be dependent on peripheral and central mechanisms.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000200703&lng=en&tlng=enCoronary artery diseaseExerciseCardiorespiratory fitnessVentilatory efficiency |
| spellingShingle | D.M.L. Prado E.A. Rocco A.G. Silva D.F. Rocco M.T. Pacheco P.F. Silva V. Furlan Effects of continuous vs interval exercise training on oxygen uptake efficiency slope in patients with coronary artery disease Brazilian Journal of Medical and Biological Research Coronary artery disease Exercise Cardiorespiratory fitness Ventilatory efficiency |
| title | Effects of continuous vs interval exercise training on oxygen uptake efficiency slope in patients with coronary artery disease |
| title_full | Effects of continuous vs interval exercise training on oxygen uptake efficiency slope in patients with coronary artery disease |
| title_fullStr | Effects of continuous vs interval exercise training on oxygen uptake efficiency slope in patients with coronary artery disease |
| title_full_unstemmed | Effects of continuous vs interval exercise training on oxygen uptake efficiency slope in patients with coronary artery disease |
| title_short | Effects of continuous vs interval exercise training on oxygen uptake efficiency slope in patients with coronary artery disease |
| title_sort | effects of continuous vs interval exercise training on oxygen uptake efficiency slope in patients with coronary artery disease |
| topic | Coronary artery disease Exercise Cardiorespiratory fitness Ventilatory efficiency |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000200703&lng=en&tlng=en |
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