TY - JOUR
TI - Beneficial effects of combined exercise training on early recovery cardiopulmonary exercise testing indices in patients with chronic heart failure
AU - Georgantas, A.
AU - Dimopoulos, S.
AU - Tasoulis, A.
AU - Karatzanos, E.
AU - Pantsios, C.
AU - Agapitou, V.
AU - Ntalianis, A.
AU - Roditis, P.
AU - Terrovitis, J.
AU - Nanas, S.
JO - Journal of Cardiopulmonary Rehabilitation and Prevention
PY - 2014
VL - 34
TODO - 6
SP - 378-385
PB - Lippincott Williams and Wilkins
SN - 1932-7501
TODO - 10.1097/HCR.0000000000000068
TODO - carbon dioxide, adult;  aerobic exercise;  Article;  breathing rate;  cardiac patient;  cardiopulmonary exercise test;  clinical article;  congestive cardiomyopathy;  controlled study;  exercise recovery;  female;  heart failure;  heart left ventricle ejection fraction;  human;  ischemic cardiomyopathy;  lung minute volume;  lung ventilation;  male;  metabolic parameters;  New York Heart Association class;  oxygen consumption;  randomized controlled trial;  resistance training;  tidal volume;  valvular heart disease;  chronic disease;  exercise;  exercise test;  follow up;  heart failure;  kinesiotherapy;  middle aged;  procedures;  resistance training;  statistics and numerical data;  treatment outcome, Chronic Disease;  Exercise;  Exercise Test;  Exercise Therapy;  Female;  Follow-Up Studies;  Heart Failure;  Humans;  Male;  Middle Aged;  Oxygen Consumption;  Resistance Training;  Respiratory Rate;  Tidal Volume;  Treatment Outcome
TODO - PURPOSE: Exercise training induces several beneficial effects in patients with chronic heart failure (CHF). This study investigated the effects of high-intensity aerobic interval training (AIT) compared with combined AIT and strength training (COM) on early ventilatory and metabolic recovery pattern after symptom-limited cardiopulmonary exercise testing (CPET) in CHF patients.
METHODS: Stable CHF patients (N = 42; 54 ± 10 years [mean ± SD], 35 males) participated in an exercise training program for 12 weeks, 3 times per week. Participants were randomly assigned to either AIT (n = 20) or COM group (n = 22). Cardiopulmonary exercise testing was performed before and after completion of the program. Primary measurements included absolute and percentage difference of oxygen uptake, carbon dioxide output, minute ventilation (VE), tidal volume (VT), respiratory rate, and the first-degree slope of oxygen uptake (VO2/t slope) and carbon dioxide output (VCO2/t slope) during the first minute of recovery after maximal exercise.
RESULTS: The COM group had a greater improvement in the absolute and the percentage difference of VE (P = .03 and P = .04, respectively) and respiratory rate (P = .02 and P = .01, respectively) during the first minute of recovery period after exercise compared with the AIT group alone. No significant changes were noted for V T measurements. A significant increase in VCO2/t slope was observed in COM compared with the AIT group (P = .01). There was a trend for a greater increase in VO2/t slope in the COM group (P = .07).
CONCLUSIONS: The addition of strength training to AIT induces significant beneficial effects in terms of ventilatory and metabolic recovery kinetics than AIT alone in CHF patients, possibly indicating greater ventilatory efficiency and metabolic improvement. Copyright © 2014 Wolters Kluwer Health | Lippincott Williams & Wilkins.
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