title: Repeated Sprint Ability in Young Basketball Players: Multi-direction vs. One-Change of Direction (Part 1).
abstract: The aim of the present study was to examine the reliability of a novel multi-direction repeated sprint ability (RSA) test [RSM; 10 × (6 × 5-m)] compared with a RSA with one change of direction [10 × (2 × 15-m)], and the relationship of the RSM and RSA with Yo-Yo intermittent recovery test level 1 (Yo-Yo IR1) and jump performances [squat jump (SJ) and counter-movement-jump (CMJ)]. Thirty-six (male, n = 14, female n = 22) young basketball players (age 16.0 ± 0.9 yrs) performed the RSM, RSA, Yo-Yo IR1, SJ, and CMJ, and were re-tested only for RSM and RSA after 1 week. The absolute error of reliability (standard error of the measurement) was lower than 0.212 and 0.617-s for the time variables of the RSA and RSM test, respectively. Performance in the RSA and RSM test significantly correlated with CMJ and SJ. The best time, worst time, and total time of the RSA and RSM test were negatively correlated with Yo-Yo IR1 distance. Based on these findings, consistent with previously published studies, it was concluded that the novel RSM test was valid and reliable.
authors.affiliation: University eCampusNovedrate, Italy; Faculty of Kinesiology, University of SplitSplit, Croatia.
authors.forename: Johnny
authors.initials: J
authors.lastname: Padulo
authors.affiliation: Department of Health Sciences, University of Genoa Genoa, Italy.
authors.forename: Nicola L
authors.initials: NL
authors.lastname: Bragazzi
authors.affiliation: Department of Physical and Cultural Education, Hellenic Army Academy Athens, Greece.
authors.forename: Pantelis T
authors.initials: PT
authors.lastname: Nikolaidis
authors.affiliation: Department of Life Science, The Zinman College for Physical Education and Sport Science Wingate, Natanya, Israel.
authors.forename: Antonio
authors.initials: A
authors.lastname: Dello Iacono
authors.affiliation: CONI - Italian Olympic Committee Cagliari, Sardinia, Italy.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Attene
authors.affiliation: Department of Neurological and Movement Sciences, University of Verona Verona, Italy.
authors.forename: Fabio
authors.initials: F
authors.lastname: Pizzolato
authors.affiliation: Biomechanics Laboratory, Federal University of Santa Catarina Florianópolis, Brazil.
authors.forename: Juliano
authors.initials: J
authors.lastname: Dal Pupo
authors.affiliation: Laboratoty of Physiology and Sports Performance, Physical Education Department, Faculty of Sciences, UNESP-Universidade Estadual Paulista Bauru, Brazil.
authors.forename: Alessandro M
authors.initials: AM
authors.lastname: Zagatto
authors.affiliation: CONI - Italian Olympic Committee Cagliari, Sardinia, Italy.
authors.forename: Marcello
authors.initials: M
authors.lastname: Oggianu
authors.affiliation: CONI - Italian Olympic CommitteeCagliari, Sardinia, Italy; Sport Science LabLondon, UK.
authors.forename: Gian M
authors.initials: GM
authors.lastname: Migliaccio
keywords: athletic performance; physical endurance; physical fitness; shuttle running; team sport