Antón Olóriz, María Milagros
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Antón Olóriz
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María Milagros
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Ciencias de la Salud
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Publication Open Access Effects of combined resistance and endurance training versus resistance training alone on strength, exercise capacity, and quality of life in patients with COPD(Lippincott, Williams & Wilkins (LWW), 2015) Zambom Ferraresi, Fabrício; Gorostiaga Ayestarán, Esteban; Hernández, María; Hueto, Javier; Cascante, José; Rezusta, Lourdes; Val, Luis; Antón Olóriz, María Milagros; Ciencias de la Salud; Osasun Zientziak; Gobierno de Navarra / Nafarroako GobernuaPURPOSE: To compare the effects of 12-week training periods (2 d·wk¯¹) involving resistance training only with the effects of 12-week training periods involving combined resistance (once weekly) and endurance (once weekly) training on strength, endurance performance, and quality of life. METHODS: Thirty-six patients with moderate-to-severe chronic obstructive pulmonary disease were randomized to combined training (REG), resistance training alone (RG), or control (CG) groups. Patients were tested for maximal strength of the upper and lower extremities, power output of the lower extremities, maximal (Wmax) and submaximal exercise capacity, performance on a 6-minute walk test (6MWT), and quality of life. RESULTS: REG and RG induced similar maximal strength gains. Muscle power increased 19% (P ≤.01) and Wmax improved 13% (P < .05) in REG. Reductions (P < .05) in the heart rate and blood lactate at a given submaximal workload were observed in REG. Improvements in 6MWT and quality of life were similar in both training groups. CONCLUSIONS: Compared with a twice-weekly resistance training program, the combination of once-weekly resistance and once-weekly endurance training not only produced similar gains in maximal strength, 6MWT performance, and quality of life but also produced improvements in muscle power and endurance performance. These findings may have implications for the prescription of resistance and endurance exercise for patients with chronic obstructive pulmonary disease.Publication Open Access Assessment of dyspnea and dynamic hyperinflation in male patients with chronic obstructive pulmonary disease during a six minute walk test and an incremental treadmill cardiorespiratory exercise test(Elsevier, 2017) Alfonso Imízcoz, María; Bustamante, V.; Cebollero Rivas, Pilar; Antón Olóriz, María Milagros; Herrero, S.; Ciencias de la Salud; Osasun ZientziakThe six minute walk test (6MWT) is a standardized test that provides information on exercise capacity in patients with COPD. It is considered a submaximal test in opposition to incremental cardiopulmonary exercise tests (CPET) that provide valuable information on all the systems involved in exercise. Objectives: 1. To compare the perceptive, physiological responses and degree of dynamic hyperinflation during two exercise tests: the 6MWT and the incremental CPET on a treadmill. 2. To evaluate how dyspnea is related to dynamic hyperinflation (DH) and other functional parameters in both tests. Methods: 29 stable COPD male patients, age 68 ± 5.8 years, mean post-bronchodilator FEV1 57 ± 11%, were recruited. To evaluate dynamic hyperinflation, inspiratory capacity (IC) was measured at rest and upon completing each one of the tests. At the same time, perceived dyspnea and leg discomfort were rated on specific modified Borg scales. Results: The mean walk distance in 6MWT was 494 ± 88 m. The Borg scale rating for shortness of breath upon completing the test was 4.7 ± 2, whilst 2.9 ± 2 for leg discomfort. IC changed from 2.53 ± 0.63 l before to 2.34 ± 0.60 l after completion of the test. In the treadmill CPET, maximal oxygen consumption (VO˙ 2 max) was 21.8 ± 5 mL/kg/min with 6.6 ± 2 dyspnea and 4.3 ± 2 leg discomfort on Borg scales. IC changed from 2.17 ± 0.53 l to 1.20 ± 0.43 l. Conclusions: Dynamic hyperinflation occurs in male COPD patients during submaximal exercise such as the 6MWT. This phenomenon is more pronounced after incremental CPET on a treadmill. Despite being dyspnea the dominant limiting symptom for both tests, we observed different physiological responses.