title: Continuous and high-intensity interval training: which promotes higher pleasure?
abstract: OBJECTIVE
  To compare the psychological responses to continuous (CT) and high-intensity interval training (HIT) sessions.
  
  
  METHODS
  Fifteen men attended one CT session and one HIT session. During the first visit, the maximum heart rate, VO2Peak and respiratory compensation point (RCP) were determined through a maximal cardiopulmonary exercise test. The HIT stimulus intensity corresponded to 100% of VO2Peak, and the average intensity of both sessions was maintained at 15% below the RCP. The order of the sessions was randomized. Psychological and physiological variables were recorded before, during and after each session.
  
  
  RESULTS
  There were no significant differences between the average percentages of VO2 during the two exercise sessions (HIT: 73.3% vs. CT: 71.8%; p = 0.779). Lower responses on the feeling scale (p≤0.01) and higher responses on the felt arousal scale (p≤0.001) and the rating of perceived exertion were obtained during the HIT session. Despite the more negative feeling scale responses observed during HIT and a greater feeling of fatigue (measured by Profile of Mood States) afterwards (p<0.01), the physical activity enjoyment scale was not significantly different between the two conditions (p = 0.779).
  
  
  CONCLUSIONS
  Despite the same average intensity for both conditions, similar psychological responses under HIT and CT conditions were not observed, suggesting that the higher dependence on anaerobic metabolism during HIT negatively influenced the feeling scale responses.
authors.affiliation: Exercise and Sports Sciences Graduate Program of Gama Filho University, Rio de Janeiro, Brazil ; Physical Education Department of President Antônio Carlos University, Minas Gerais, Brazil.
authors.forename: Bruno R R
authors.initials: BR
authors.lastname: Oliveira
authors.forename: Fabian A
authors.initials: FA
authors.lastname: Slama
authors.forename: Andréa C
authors.initials: AC
authors.lastname: Deslandes
authors.forename: Elen S
authors.initials: ES
authors.lastname: Furtado
authors.forename: Tony M
authors.initials: TM
authors.lastname: Santos
mesh_terms: D000293:Adolescent; D000328:Adult; D015444:Exercise / Q000502:physiology*; D006801:Humans; D008297:Male; D008962:Models, Theoretical; D057181:Pleasure / Q000502:physiology*; D011581:Psychological Tests; D055815:Young Adult