title: Age-related variation of anaerobic power after controlling for size and maturation in adolescent basketball players.
abstract: BACKGROUND
  Adolescence is characterized by increments in body size and physical performance. Short bursts of maximal intensity, requiring anaerobic metabolism, are important in many team sports including basketball.
  
  
  OBJECTIVE
  Variation of anaerobic power of adolescent basketball players (n = 93, 14-16 years) in relation to years before and after estimated age at peak height velocity (PHV) and variation in body size was considered.
  
  
  METHODS
  The cross-sectional study included chronological age, estimated age at PHV, training experience; stature, body mass (BM), free-fat mass (FFM) and estimated lower-limb volume (LLV) by anthropometry; and short-term power outputs derived from the Wingate Anaerobic Test (WAnT). Based on proportional allometric modeling, power outputs were partitioned for biological maturity status and size variables. Pearson correlations were used to estimate the associations between distance to PHV (maturity offset) and training experience with absolute and scaled estimates of short-term power.
  
  
  RESULTS
  Absolute WAnT increased linearly (PP, r = 0.72; MP, r = 0.74) through the interval of rapid growth of the adolescent spurt. Increments were related mainly to BM and muscle mass. Nevertheless, a residual significant positive influence of chronological age per se on maximal short-term power outputs remained independent of body size.
  
  
  CONCLUSIONS
  Allometric modelling to partition size may reveal other potentially meaningful factors in the development of short-term performance in adolescent athletes.
authors.affiliation: University of Coimbra, Coimbra, Portugal. hmoreiracarvalho@gmail.com
authors.forename: Humberto M
authors.initials: HM
authors.lastname: Carvalho
authors.forename: Manuel J
authors.initials: MJ
authors.lastname: Coelho-e-Silva
authors.forename: Carlos E
authors.initials: CE
authors.lastname: Gonçalves
authors.forename: Renaat M
authors.initials: RM
authors.lastname: Philippaerts
authors.forename: Carlo
authors.initials: C
authors.lastname: Castagna
authors.forename: Robert M
authors.initials: RM
authors.lastname: Malina
mesh_terms: D000293:Adolescent; D000375:Aging / Q000502:physiology*; D000693:Anaerobiosis / Q000502:physiology; D056352:Athletes; D001490:Basketball; D049628:Body Size / Q000502:physiology*; D006128:Growth / Q000502:physiology*; D006801:Humans; D008297:Male; D008954:Models, Biological