title: [Inspiratory muscles strength training in recreational athletes].
abstract: BACKGROUND
  Respiratory muscles strength and endurance influence athletic performance. Besides conventional spirometry, sniff test, inspiratory and expiratory maximal pressures can directly assess respiratory muscle strength. Respiratory muscles can be train through a device offering inspiratory and expiratory resistance.
  
  
  METHODS
  Nineteen subjects aged 18 to 30 years and practicing leisure sport trained inspiratory muscles on Powerbreathe(®) for eight weeks. Resistance was set at 85% of maximal inspiratory pressure determined during a preliminary session. Evaluation was made trough voluntary and non-invasive methods on Macro 5000(®) (PI max, PE max and sniff test).
  
  
  RESULTS
  An increase of 21.77% of the maximum inspiratory pressure, 17% of the maximum expiratory pressure and 18% of the sniff test are recorded after eight weeks of training.
  
  
  CONCLUSIONS
  A specific training of inspiratory muscles (Powerbreathe(®) Sports performance) increases the power of these muscles (voluntary and non-invasive tests).
authors.affiliation: Département des Sciences de la Motricité, Institut Supérieur d'Éducation Physique et de Kinésithérapie, Université de Liège, Allée des Sports 4, B21, B-4000 Liège, Belgique. isabelle.kellens@ulg.ac.be
authors.forename: I
authors.initials: I
authors.lastname: Kellens
authors.forename: F
authors.initials: F
authors.lastname: Cannizzaro
authors.forename: P
authors.initials: P
authors.lastname: Gouilly
authors.forename: J-M
authors.initials: JM
authors.lastname: Crielaard
mesh_terms: D000293:Adolescent; D000328:Adult; D056352:Athletes; D054874:Athletic Performance / Q000502:physiology; D015992:Body Mass Index; D001945:Breathing Exercises; D004867:Equipment Design; D006801:Humans; D001239:Inhalation / Q000502:physiology; D008297:Male; D011312:Pressure; D011998:Recreation; D055070:Resistance Training / Q000295:instrumentation*; D012129:Respiratory Function Tests; D012132:Respiratory Muscles / Q000502:physiology; D013147:Spirometry; D055815:Young Adult