title: A single set of exhaustive exercise before resistance training improves muscular performance in young men.
abstract: OBJECTIVE
  The purpose of this study was to examine the effects of an additional set of exhaustive exercise before traditional hypertrophic training on quadriceps muscle performance in young men.
  
  
  METHODS
  Subjects performed maximal dynamic strength (1RM), local muscular endurance (LME), and magnetic resonance imaging (MRI) tests before and after an 8-week hypertrophic training program using a knee extensor machine. After baseline testing, the subjects were divided into 3 groups: untrained control, traditional training (TR), and prior exhaustive training (PE). Both the TR and PE groups trained using the same training protocol (2 days week(-1); 3 sets of 8-12 repetitions at 75 % of 1RM); the only difference was that the PE group performed an additional set of exhaustive exercise at 20 % of 1RM before each training session.
  
  
  RESULTS
  After 8 weeks, the PE group experienced a greater (P < 0.05) increase in 1RM, cross-sectional area, and LME than the TR group. Additionally, no changes (P > 0.05) in daily dietary intake were observed between groups.
  
  
  CONCLUSIONS
  These results suggest that the inclusion of a single set of exhaustive exercise at 20 % of 1RM before traditional hypertrophic training can be a suitable strategy for inducing additional beneficial effects on quadriceps strength, hypertrophy, and endurance in young men.
authors.affiliation: Center of Research in Health Sciences, North University of Paraná (UNOPAR), Avenue Paris, 675, Jardim Piza, Londrina, PR, CEP 86041-120, Brazil, afaguiarunesp@gmail.com.
authors.forename: Andreo Fernando
authors.initials: AF
authors.lastname: Aguiar
authors.forename: Cosme Franklim
authors.initials: CF
authors.lastname: Buzzachera
authors.forename: Rafael Mendes
authors.initials: RM
authors.lastname: Pereira
authors.forename: Vanda Cristina
authors.initials: VC
authors.lastname: Sanches
authors.forename: Renata Borges
authors.initials: RB
authors.lastname: Januário
authors.forename: Rubens Alexandre
authors.initials: RA
authors.lastname: da Silva
authors.forename: Lucas Maciel
authors.initials: LM
authors.lastname: Rabelo
authors.forename: André Wilson
authors.initials: AW
authors.lastname: de Oliveira Gil
mesh_terms: D000222:Adaptation, Physiological / Q000502:physiology; D000293:Adolescent; D000328:Adult; D015444:Exercise / Q000502:physiology*; D006801:Humans; D008297:Male; D009119:Muscle Contraction / Q000502:physiology*; D053580:Muscle Strength / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*; D010807:Physical Endurance / Q000502:physiology*; D055070:Resistance Training / Q000379:methods; D014891:Weight Lifting / Q000502:physiology; D055815:Young Adult