摘要:The purpose of this study was to compare the differences between physiological and performance response to different repeated sprint tests (RSTs). Nine young soccer players (age 18.3 ± 1.0 years; height 176.8 ± 5.0 cm; body-mass 74.1 ± 6.9 kg) performed Yo-Yo Intermittent Recovery Test Level 1 (YIRT1), Wingate Anaerobic Test (WAnT) and four different RST’s; including two straight tests (6 x 40 m, and 8 x 30 m) and shuttle tests (6 x 40 m and 8 x 30 m) maximal runs starting every 25s. Blood lactate (La-) was measured three minutes following each RST. Significantly higher average speed responses were determined from 6 x 40 m straight than other RSTs, Additionally, a strong correlation (r=0.80) was found between the best sprint times for 6 x 40 m and the 8 x 30 m straight RST protocols. Moderate correlations were found between YIRT1 performance and the 8 x 30 m straight test performance (range: r= 0.69 to 0.72) (p≤0.05). Moreover, there were significant correlations in the total sprint times of RSTs for all protocols except 8 x 30 m shuttle (range: r= 0.68 to 0.90). Therefore, if coaches want higher speed in their training, they can choose straight RSTs and if they want higher physiological response they may select shuttle RSTs.
其他摘要:Namen te raziskave je bil primerjati razlike med fiziološkim odzivom in uspešnostjo pri različnih testih ponavljajočih se šprintov (RST). Devet mladih nogometašev (starost 18,3 ± 1,0 let; višina 176,8 ± 5,0 cm; telesna masa 74,1 ± 6,9 kg) je izvajalo test Yo-Yo Intermittent Recovery, 1. nivo (YIRT1), test Wingate Anaerobic (WAnT) in štiri različne teste RST, vključno z dvema testoma teka naravnost (6 x 40 m in 8 x 30 m) in cikcak (6 x 40 m in 8 x 30 m), pri čemer so se maksimalni teki začeli vsakih 25 s. Tri minute po vsakem testu RST je bila izmerjena vrednost laktata v krvi (La-). Pri teku naravnost 6 x 40 m je bila ugotovljena značilno višja povprečna hitrostna odzivnost kot pri drugih testih RST. Poleg tega je bila ugotovljena močna korelacija (r = 0,80) med najboljšimi časi šprinta pri protokolu RST s tekom naravnost na 6 x 40 in 8 x 30 metrov. Zmerne korelacije so bile ugotovljene med rezultati YIRT1 in rezultati testa šprinta naravnost na 8 x 30 m (razpon: r = 0,69 do 0,72) (p ≤ 0,05). Poleg tega so bile pomembne korelacije zabeležene tudi v skupnih časih šprinta pri RST za vse protokole, razen 8 x 30 m teka cikcak (razpon: r = 0,68 do 0,90). Iz tega sledi, da lahko trenerji, kadar želijo doseči višje hitrosti na treningih, izberejo RST s tekom naravnost, če pa želijo višjo fiziološko odzivnost, pa RST s tekom cikcak.