title: Whole-body strength training using a Huber Motion Lab in coronary heart disease patients: safety, tolerance, fuel selection, and energy expenditure aspects and optimization.
abstract: OBJECTIVE
  The aim of this study was to investigate safety, tolerance, relative exercise intensity, and muscle substrate oxidation during sessions performed on a Huber Motion Lab in coronary heart disease patients.
  
  
  METHODS
  After an assessment of Vo2 peak, 20 coronary heart disease patients participated in two different exercises performed in random order at 40% and 70% (W40 and W70) of the maximal isometric voluntary contraction.
  
  
  RESULTS
  No significant arrhythmia or abnormal blood pressure responses occurred during either session, and no muscle soreness was reported within 48 hrs posttest. The authors found a difference between W40 and W70 sessions for mean (standard deviation) ventilation (25.1% [8%] and 32.1% [9%] of maximal ventilation, respectively; P = 0.04) and a small difference for mean (standard deviation) heart rate (73 [7] and 79 [8] beats/min, respectively; P < 0.01). When compared with the W40, the W70 was associated with higher active energy expenditure (2.4 [0.6] and 3.1 [0.9] Kcal/min, respectively; P < 0.0001) and a similar mean (standard deviation) oxygen uptake (5.5 [1] and 6.6 [1] ml/min per kilogram, respectively; P = 0.07). The qualitative percentages of carbohydrates and lipids oxidized were 71% and 29%, respectively, at W40 and 91% and 9%, respectively, at W70.
  
  
  CONCLUSIONS
  Both protocols, which consisted of repeating 6-sec phases of contractions with 10 secs of passive recovery on the Huber Motion Lab, seemed to be well tolerated, safe, and feasible in this group of coronary heart disease patients.
authors.affiliation: From the Clinic of Saint-Orens, Cardiovascular and Pulmonary Rehabilitation Center, Saint-Orens-de-Gameville, France (TG, RG, MB, LR, AB); Institute of Cardiovascular and Metabolic Diseases, National Institute of Health and Medical Research (INSERM), UMR-1048, Toulouse, France (TG, ML); University of Toulouse III: Paul Sabatier, Toulouse, France (TG, AP); Department of Rehabilitation, Toulouse University Hospital, Toulouse, France (ML); Department of Clinical Pharmacology, Toulouse University Hospital, Toulouse, France (AP); Pôle Rééducation-Réadaptation and Plateforme d'Investigation Technologique INSERM CIC 1432, Centre Hospitalier Universitaire de Dijon, Dijon, France (VG); INSERM U1093 « Cognition, Action, et Plasticité Sensorimotrice » 8 Service de Médecine du Sport, CHU Toulouse, Larrey, France (FP); and Cardiovascular Prevention and Rehabilitation Centre, Montreal Heart Institute, University of Montreal, Montreal, Québec, Canada (MG).
authors.forename: Thibaut
authors.initials: T
authors.lastname: Guiraud
authors.forename: Marc
authors.initials: M
authors.lastname: Labrunée
authors.forename: Fabien
authors.initials: F
authors.lastname: Pillard
authors.forename: Richard
authors.initials: R
authors.lastname: Granger
authors.forename: Marc
authors.initials: M
authors.lastname: Bousquet
authors.forename: Lisa
authors.initials: L
authors.lastname: Richard
authors.forename: Anne
authors.initials: A
authors.lastname: Boned
authors.forename: Atul
authors.initials: A
authors.lastname: Pathak
authors.forename: Mathieu
authors.initials: M
authors.lastname: Gayda
authors.forename: Vincent
authors.initials: V
authors.lastname: Gremeaux
mesh_terms: D003327:Coronary Disease / Q000503:physiopathology* / Q000534:rehabilitation*; D004734:Energy Metabolism; D017079:Exercise Tolerance; D005260:Female; D006801:Humans; D007537:Isometric Contraction; D008297:Male; D008875:Middle Aged; D053580:Muscle Strength; D018482:Muscle, Skeletal / Q000378:metabolism; D010101:Oxygen Consumption; D055070:Resistance Training / Q000145:classification* / Q000379:methods*