title: Does increasing active warm-up duration affect afternoon short-term maximal performance during Ramadan?
abstract: OBJECTIVE
  The purpose of this study was to examine the effect of active warm-up duration on short-term maximal performance assessed during Ramadan in the afternoon.
  
  
  METHODS
  Twelve healthy active men took part in the study. The experimental design consisted of four test sessions conducted at 5 p.m., before and during Ramadan, either with a 5-minute or a 15-minute warm-up. The warm-up consisted in pedaling at 50% of the power output obtained at the last stage of a submaximal multistage cycling test. During each session, the subjects performed two vertical jump tests (squat jump and counter movement jump) for measurement of vertical jump height followed by a 30-second Wingate test for measurement of peak and mean power. Oral temperature was recorded at rest and after warming-up. Moreover, ratings of perceived exertion were obtained immediately after the Wingate test.
  
  
  RESULTS
  Oral temperature was higher before Ramadan than during Ramadan at rest, and was higher after the 15-minute warm-up than the 5-minute warm-up both before and during Ramadan. In addition, vertical jump heights were not significantly different between the two warm-up conditions before and during Ramadan, and were lower during Ramadan than before Ramadan after both warm-up conditions. Peak and mean power were not significantly different between the two warm-up durations before Ramadan, but were significantly higher after the 5-minute warm-up than the 15-minute warm-up during Ramadan. Moreover, peak and mean power were lower during Ramadan than before Ramadan after both warm-up conditions. Furthermore, ratings of perceived exertion were higher after the 15-minute warm-up than the 5-minute warm-up only during Ramadan.
  
  
  CONCLUSIONS
  The prolonged active warm-up has no effect on vertical jump height but impairs anaerobic power assessed during Ramadan in the afternoon.
authors: Research Laboratory "Sport Performance Optimization", National Center of Medicine and Sciences in Sport, Tunis, Tunisia.
authors: Hana
authors: H
authors: Baklouti
authors: Research Laboratory "Sport Performance Optimization", National Center of Medicine and Sciences in Sport, Tunis, Tunisia; High Institute of Sport and Physical Education of Gafsa, University of Gafsa, Gafsa, Tunisia.
authors: Asma
authors: A
authors: Aloui
authors: Research Laboratory "Sport Performance Optimization", National Center of Medicine and Sciences in Sport, Tunis, Tunisia; High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax, Tunisia.
authors: Hamdi
authors: H
authors: Chtourou
authors: University of French West Indies and Guyana, ACTES Laboratory, Pointe-à-Pitre, Guadeloupe, France.
authors: Walid
authors: W
authors: Briki
authors: Research Laboratory "Sport Performance Optimization", National Center of Medicine and Sciences in Sport, Tunis, Tunisia.
authors: Anis
authors: A
authors: Chaouachi
authors: Research Laboratory "Sport Performance Optimization", National Center of Medicine and Sciences in Sport, Tunis, Tunisia.
authors: Nizar
authors: N
authors: Souissi
mesh_terms: D054874:Athletic Performance / Q000502:physiology*; D001831:Body Temperature; D003681:Dehydration / Q000503:physiopathology; D005080:Exercise Test; D005215:Fasting / Q000502:physiology*; D006801:Humans; D007514:Islam; D008297:Male; D009068:Movement; D018482:Muscle, Skeletal / Q000502:physiology; D005082:Physical Exertion; D013997:Time Factors; D055815:Young Adult
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