title: Effects of compression clothing on speed-power performance of elite Paralympic sprinters: a pilot study.
abstract: BACKGROUND
  Compression garments are thought to aid performance in some selected speed-power activities owing to improved sensory feedback and proprioception. The aim of this study was to test the effects of using compression garments on speed and power-related performances in elite sprinters with visual impairment, who rely more on proprioception to perform than their Olympic peers. Eight top-level Paralympic sprinters competing in 100- and 200-m races performed, in the following order: unloaded squat jump (SJ), loaded jump squat (JS) and sprint tests over 20- and 70-m distances; using or not the compression garment. The maximum mean propulsive power value obtained during the JS attempts (starting at 40 % of their body mass, after which a load of 10 % of body mass was progressively added) was considered for data analysis purposes. The athletes executed the SJ and JS attempts without any help from their guides. Magnitude-based inference was used to analyze the results.
  
  
  RESULTS
  The unloaded SJ was possibly higher in the compression than the placebo condition (41.19 ± 5.09 vs. 39.49 ± 5.75 cm). Performance differences in the loaded JS and sprint tests were all rated as unclear.
  
  
  CONCLUSIONS
  It was concluded that the acute enhancement in vertical jump ability should be explored in the preparation of Paralympic sprinters during power-related training sessions. However, chronic effects in Paralympic athletes wearing compression garments need to be further tested, in order to support its use as a specific training aid.
authors.affiliation: NAR - Nucleus of High Performance in Sport, Av. Padre José Maria, 555 - Santo Amaro, São Paulo, SP 04753-060 Brazil.
authors.forename: Irineu
authors.identifier: 0000-0003-1309-2568
authors.initials: I
authors.lastname: Loturco
authors.affiliation: CPB - Brazilian Paralympic Committee, Brasília, DF Brazil.
authors.forename: Ciro
authors.initials: C
authors.lastname: Winckler
authors.affiliation: CPB - Brazilian Paralympic Committee, Brasília, DF Brazil.
authors.forename: Thiago F
authors.initials: TF
authors.lastname: Lourenço
authors.affiliation: CPB - Brazilian Paralympic Committee, Brasília, DF Brazil.
authors.forename: Amaury
authors.initials: A
authors.lastname: Veríssimo
authors.affiliation: NAR - Nucleus of High Performance in Sport, Av. Padre José Maria, 555 - Santo Amaro, São Paulo, SP 04753-060 Brazil.
authors.forename: Ronaldo
authors.initials: R
authors.lastname: Kobal
authors.affiliation: NAR - Nucleus of High Performance in Sport, Av. Padre José Maria, 555 - Santo Amaro, São Paulo, SP 04753-060 Brazil.
authors.forename: Katia
authors.initials: K
authors.lastname: Kitamura
authors.affiliation: NAR - Nucleus of High Performance in Sport, Av. Padre José Maria, 555 - Santo Amaro, São Paulo, SP 04753-060 Brazil.
authors.forename: Lucas A
authors.initials: LA
authors.lastname: Pereira
authors.affiliation: NAR - Nucleus of High Performance in Sport, Av. Padre José Maria, 555 - Santo Amaro, São Paulo, SP 04753-060 Brazil ; UEL - State University of Londrina, Londrina, PR Brazil.
authors.forename: Fábio Y
authors.initials: FY
authors.lastname: Nakamura
keywords: Blind athletes; Loaded jumps; Sprint; Squat jump; Visual impairment