title: Effects of Combined Resistance and Endurance Training Versus Resistance Training Alone on Strength, Exercise Capacity, and Quality of Life in Patients With COPD.
abstract: OBJECTIVE
  To compare the effects of 12-week training periods (2 d·wk) 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.
authors.affiliation: Department of Health Sciences (Drs Zambom-Ferraresi and Anton), Public University of Navarre, Navarre, Spain; Department of Pulmonary Medicine B (Drs Cebollero, Hernández, Hueto, and Cascante) and Department of Rehabilitation B (Drs Rezusta and Val), Complejo Hospitalario de Navarra, Navarra, Spain; and Studies, Research and Sports Medicine Center (Dr Gorostiaga), Government of Navarre, Navarre, Spain.
authors.forename: Fabrício
authors.initials: F
authors.lastname: Zambom-Ferraresi
authors.forename: Pilar
authors.initials: P
authors.lastname: Cebollero
authors.forename: Esteban M
authors.initials: EM
authors.lastname: Gorostiaga
authors.forename: María
authors.initials: M
authors.lastname: Hernández
authors.forename: Javier
authors.initials: J
authors.lastname: Hueto
authors.forename: José
authors.initials: J
authors.lastname: Cascante
authors.forename: Lourdes
authors.initials: L
authors.lastname: Rezusta
authors.forename: Luis
authors.initials: L
authors.lastname: Val
authors.forename: María M
authors.initials: MM
authors.lastname: Anton
mesh_terms: D000368:Aged; D005081:Exercise Therapy / Q000379:methods; D017079:Exercise Tolerance / Q000502:physiology*; D006801:Humans; D008297:Male; D053580:Muscle Strength / Q000502:physiology*; D010807:Physical Endurance / Q000502:physiology*; D029424:Pulmonary Disease, Chronic Obstructive / Q000503:physiopathology / Q000534:rehabilitation*; D011788:Quality of Life; D055070:Resistance Training