title: Long-Sprint Abilities in Soccer: Ball Versus Running Drills.
abstract: OBJECTIVE
  To examine the acute effects of generic drills (running drills [RDs]) and specific (small-sided-games [SSGs]) long-sprint-ability (LSA) drills on internal and external load of male soccer players.
  
  
  METHODS
  Fourteen academy-level soccer players (mean ± SD age 17.6 ± 0.61 y, height 1.81 ± 0.63 m, body mass 69.53 ± 4.65 kg) performed four 30-s LSA bouts for maintenance (work:rest 1:2) and production (1:5) with RDs and SSGs. Players' external load was tracked with GPS technology (20-Hz), and heart rate (HR), blood lactate concentration (BLc), and rating of perceived exertion (RPE) were used to characterize players' internal load. Individual peak BLcwas assessed with a 30-s all-out test on a nonmotorized treadmill (NMT).
  
  
  RESULTS
  Compared with SSGs, the RDs had a greater effect on external load and BLc(large and small, respectively). During SSGs players covered more distance with high-intensity decelerations (moderate to small). Muscular RPE was higher (small to large) in RDs than in SSGs. The production mode exerted a moderate effect on BLcwhile the maintenance condition elicited higher cardiovascular effects (small to large).
  
  
  CONCLUSIONS
  The results of this study showed the superiority of generic over specific drills in inducing LSA-related physiological responses. In this regard production RDs showed the higher postexercise BLc. Individual peak blood lactate responses were found after the NMT 30-s all-out test, suggesting this drill as a valid option to RDs. The practical physiological diversity among the generic and specific LSA drills here considered enable fitness trainers to modulate prescription of RD and SSG drills for LSA according to training schedule.
authors.forename: Carlo
authors.initials: C
authors.lastname: Castagna
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Francini
authors.forename: Susana C A
authors.initials: SCA
authors.lastname: Póvoas
authors.forename: Stefano
authors.initials: S
authors.lastname: D'Ottavio
mesh_terms: D000054:Acceleration; D000293:Adolescent; D054874:Athletic Performance / Q000502:physiology*; D003654:Deceleration; D005080:Exercise Test; D006339:Heart Rate; D006801:Humans; D019344:Lactic Acid / Q000097:blood; D008297:Male; D064797:Physical Conditioning, Human / Q000379:methods*; D012420:Running / Q000502:physiology*; D012916:Soccer / Q000502:physiology*; D013686:Telemetry
chemical_list: D019344:Lactic Acid
keywords: anaerobic capacity; association football; fitness training; high intensity; speed-endurance