scholarly journals Six weeks of β-alanine supplementation did not enhance repeated-sprint ability or technical performances in young elite basketball players

2017 ◽  
Vol 23 (2) ◽  
pp. 111-118 ◽  
Author(s):  
Fabio Milioni ◽  
Paulo E Redkva ◽  
Fabio A Barbieri ◽  
Alessandro M Zagatto
Keyword(s):  
Recovery Period ◽  
Basketball Players ◽  
Group Interactions ◽  
Repeated Sprint Ability ◽  
Repeated Sprint ◽  
Supplementation Period ◽  
Before And After ◽  
Mean Time ◽  
Test Level ◽  
Sprint Ability

Supplementation with β-alanine plays an important role as a precursor of carnosine, the most effective intramuscular buffer, and has been seen as a potential ergogenic aid, especially for high-intensity modalities such as basketball. Thus, the aim of the present study was to investigate the effects of 6 weeks of β-alanine supplementation on repeated sprint ability (RSA) and technical performances in young elite Brazilian basketball players. In total, 27 young basketball players (17±1 years) were randomized into a β-alanine group (Gβ – 6.4 g day−1 of β-alanine) and a placebo group (GP – 6.4 g day−1 of dextrose). Before and after the supplementation period the athletes performed a RSA test composed of ten 30 m sprints with two 180° changes of direction interspaced by 30 s of recovery. During the recovery period (i.e., after the sprints) the athletes performed a countermovement jump (CMJ) and a set of three free throws. After 48 h they performed a Yo-Yo intermittent recovery test level 1 (Yo-Yo IR1). Both groups increased the distance covered in the Yo-Yo IR1 after the supplementation period ( p = 0.001). On the other hand, both groups presented impairment in RSA time-performance (total time, best time, and mean time, p ≤ 0.04), while no significant changes were observed for technical task performances (i.e., CMJ and free throws) ( p ≥ 0.07). No between-group interactions were observed for any variable measured ( p ≥ 0.31). Thus, 6 weeks of β-alanine supplementation did not improve RSA or technical performances in young elite basketball players.

Improvement of Repeated-Sprint Ability and Horizontal-Jumping Performance in Elite Young Basketball Players With Low-Volume Repeated-Maximal-Power Training

2016 ◽  
Vol 11 (4) ◽  
pp. 464-473 ◽  
Author(s):  
Oliver Gonzalo-Skok ◽  
Julio Tous-Fajardo ◽  
José Luis Arjol-Serrano ◽  
Luis Suarez-Arrones ◽  
José Antonio Casajús ◽  
...  
Keyword(s):  
Training Group ◽  
Control Group ◽  
Basketball Players ◽  
Ability Test ◽  
Jumping Performance ◽  
Repeated Sprint Ability ◽  
Repeated Sprint ◽  
Low Volume ◽  
Mean Time ◽  
Sprint Ability

Purpose:To examine the effects of a low-volume repeated-power-ability (RPA) training program on repeated-sprint and changeof-direction (COD) ability and functional jumping performance.Methods:Twenty-two male elite young basketball players (age 16.2 ± 1.2 y, height 190.0 ± 10.0 cm, body mass 82.9 ± 10.1 kg) were randomly assigned either to an RPA-training group (n = 11) or a control group (n = 11). RPA training consisted of leg-press exercise, twice a week for 6 wk, of 1 or 2 blocks of 5 sets × 5 repetitions with 20 s of passive recovery between sets and 3 min between blocks with the load that maximized power output. Before and after training, performance was assessed by a repeated-sprint-ability (RSA) test, a repeated-COD-ability test, a hop for distance, and a drop jump followed by tests of a double unilateral hop with the right and left legs.Results:Within-group and between-groups differences showed substantial improvements in slowest (RSAs) and mean time (RSAm) on RSA; best, slowest and mean time on repeated-COD ability; and unilateral right and left hop in the RPA group in comparison with control. While best time on RSA showed no improvement in any group, there was a large relationship (r = .68, 90% CI .43;.84) between the relative decrement in RSAm and RSAs, suggesting better sprint maintenance with RPA training. The relative improvements in best and mean repeated-COD ability were very largely correlated (r = .89, 90% CI .77;.94).Conclusions:Six weeks of low-volume (4–14 min/wk) RPA training improved several physical-fitness tests in basketball players.

Drop jumps improve repeated sprint ability performances in professional basketball players

2022 ◽  
Author(s):  
Alessandro Moura Zagatto ◽  
Yago Medeiros Dutra ◽  
Gabriel Claus ◽  
Elvis de Sousa Malta ◽  
Rodrigo Araujo Bonetti. de Poli ◽  
...  
Keyword(s):  
Basketball Players ◽  
Professional Basketball ◽  
Repeated Sprint Ability ◽  
Repeated Sprint ◽  
Drop Jumps ◽  
Sprint Ability

scholarly journals Motivational music and repeated sprint ability in junior basketball players

2012 ◽  
Vol 18 ◽  
pp. 29 ◽  
Author(s):  
Michal Eliakim ◽  
Yoav Meckel ◽  
Roni Gotlieb ◽  
Dan Nemet ◽  
Alon Eliakim
Keyword(s):  
Basketball Players ◽  
Repeated Sprint Ability ◽  
Repeated Sprint ◽  
Sprint Ability

scholarly journals Repeated Sprint Ability in Young Basketball Players: Multi-direction vs. One-Change of Direction (Part 1)

2016 ◽  
Vol 7 ◽  
Author(s):  
Johnny Padulo ◽  
Nicola L. Bragazzi ◽  
Pantelis T. Nikolaidis ◽  
Antonio Dello Iacono ◽  
Giuseppe Attene ◽  
...  
Keyword(s):  
Basketball Players ◽  
Change Of Direction ◽  
Repeated Sprint Ability ◽  
Repeated Sprint ◽  
Sprint Ability

Repeated sprint ability in young basketball players: one vs. two changes of direction (Part 1)

2014 ◽  
Vol 33 (14) ◽  
pp. 1480-1492 ◽  
Author(s):  
Johnny Padulo ◽  
Guillaume Laffaye ◽  
Monoem Haddad ◽  
Anis Chaouachi ◽  
Giuseppe Attene ◽  
...  
Keyword(s):  
Basketball Players ◽  
Repeated Sprint Ability ◽  
Repeated Sprint ◽  
Sprint Ability

scholarly journals Repeated Sprint Ability in Elite Basketball Players: The Effects of 10 × 30 m Vs. 20 × 15 m Exercise Protocols on Physiological Variables and Sprint Performance

2021 ◽  
Vol 77 (1) ◽  
pp. 181-189
Author(s):  
Bruno Figueira ◽  
Bruno Gonçalves ◽  
Eduardo Abade ◽  
Rūtenis Paulauskas ◽  
Nerijus Masiulis ◽  
...  
Keyword(s):  
Heart Rate ◽  
High Intensity ◽  
Exercise Heart Rate ◽  
Basketball Players ◽  
Small Magnitude ◽  
Physiological Variables ◽  
Repeated Sprint Ability ◽  
Repeated Sprint ◽  
The Impact ◽  
Sprint Ability

Abstract Team sports players are required to perform repeated bouts of short-term high-intensity actions during the games. The present study aimed to examine the effects of a novel repeated sprint ability protocol (20×15 m) and compare it with the impact of a more traditional repeated sprint ability protocol (10×30 m). Twelve male elite Lithuanian basketball players (age 21.0 ± 2.0 y, body height 1.90 ± 0,07 m, body mass 86.2 ± 5.8 kg and training experience 12.0 ± 1.9 y) competing in the Lithuanian National Basketball Championship participated in this study. Participants completed three bouts of each repeated sprint protocol interspersed with 5 minutes of recovery. Results showed that the 20×15 m protocol caused a significant decrease in total sprint time (most likely; mean changes (%) with ± 90% of confidence limits, -9.4%; ± 0.7%) and a large decrease in blood lactate (most likely, -39.2%; ±12.8%) compared to the 10×30 m protocol. Despite small differences, the fatigue index presented a similar trend (possibly decrease, -23.7%; ± 38.8%). The exercise heart rate showed a very similar trend with trivial differences between the two protocols. The 20×15 m protocol presented a lower heart rate during recovery with small magnitude. Overall, the present study showed that the 20×15 m protocol seemed to be more representative of the specific basketball demands. Coaches should be aware that RSA training during the in-season may be an adequate stimulus to improve high-intensity runs and muscle power in high-level players.

scholarly journals Drop jumps versus sled towing and their effects on repeated sprint ability in young basketball players

2022 ◽  
Vol 14 (1) ◽  
Author(s):  
Alessandro M. Zagatto ◽  
Gabriel M. Claus ◽  
Yago M. Dutra ◽  
Rodrigo A. de Poli ◽  
Vithor H. F. Lopes ◽  
...  
Keyword(s):  
Lactate Concentration ◽  
Knee Extensors ◽  
Emg Activity ◽  
High Frequency Stimulation ◽  
Basketball Players ◽  
Repeated Sprint Ability ◽  
Emg Signal ◽  
Repeated Sprint ◽  
Drop Jumps ◽  
Sprint Ability

Abstract Background The aim of the investigation was to compare the occurrence of post-activation performance enhancement (PAPE) after drop jumps, or heavy sled towing, and the subsequent effect on repeated sprint ability (RSA). Methods Ten young basketball players (17 ± 1 yrs) performed, in randomized order, RSA test with changes of direction after a standardized warm up followed by drop jumps, heavy sled towing, or no exercise (control condition). Neuromuscular assessments composed of two maximal voluntary contractions of the knee extensors, peripheral nerve stimulation, and surface electromyography (EMG), responses were recorded before and immediately after the RSA. The EMG signal of leg muscles during sprinting were also recorded as well as the blood lactate concentration. Results The drop jumps improved the RSA mean time (P = 0.033), total time (P = 0.031), and slowest time (P = 0.029) compared to control condition, while heavy sled towing did not change RSA outcomes (P > 0.05). All conditions exhibited a decrease of doublet high frequency stimulation force (pre-post measurement) (P = 0.023) and voluntary activation (P = 0.041), evidencing the occurrence from peripheral and central components of fatigue after RSA, respectively, but no difference was evident between-conditions. There was a significantly greater EMG activity during sprints for the biceps femoris after drop jumps, only when compared to control condition (P = 0.013). Conclusion Repeated drop jumps were effective to induce PAPE in the form of RSA, while heavy sled towing had no effect on RSA performance in young basketball players. Furthermore, both conditioning activities exhibited similar levels of fatigue following the RSA protocol. Thus, drop jumps may be used as an alternative to induce PAPE and thus improve performance during sprints in young male basketball players.

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