Knechtle B

Institute of Primary Care, University of Zurich, Switzerland

Publications

  • Original Article   
    Repeated Sprint Ability Exercise in a 9-Year-Old Basketball Players: Effect of Change of Direction
    Author(s): Nikolaidis PT*, Clemente FM, Torres-Luque G and Knechtle B

    Background: The aim of the present study was to examine the effect of one or two changes of direction (COD) on performance indices in a 10x15 m repeated sprint ability exercise (RSA) in 9-year-old basketball players. Fourteen basketball players (age 9.4 ± 1.7 yrs, height 142 ± 13 cm and weight 39 ± 10 kg) performed an RSA protocol in three different conditions on a counterbalanced order on separate days: (A) in straight line (RSASL), (B) with one COD (RSACOD, i.e., 10 × (7.5 + 7.5 m)) and, (C) with two COD (RSA2COD, i.e., 10 × (5 + 5 + 5 m)). Sprints started every 30 s (passive recovery); time variables were total time (TT), best time (BT) and fatigue index (FI). Countermovement jump (CMJ) was tested before and after each RSA protocol. Heart rate (HR) was continuously monitored during testing procedures. RS.. Read More»

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