Abstract
AbstractThe aim of the current study was to investigate the effects of ingesting different dosages of caffeine (CAF) prior to plyometric jump training (PJT) on sport-related performance and physiological parameters in male basketball players. Twenty-four young athletes were randomly divided into 3 groups and performed 6 weeks of PJT while consuming 3 mg·kg–1 of body mass caffeine (CAF3, n = 8), 6 mg·kg–1 body mass caffeine (CAF6, n = 8) or placebo (PL; n = 8) one hour prior to each training session. Before and after the 6-week PJT, the players were evaluated for field-based basketball-specific performance measures (vertical jump, 20-m sprint, Illinois change of direction speed [CODS], and maximal strength) and lab-based physiological (aerobic capacity and anaerobic power) parameters. CAF3, CAF6, and PL groups demonstrated significant improvements in vertical jump (ES = 1.07, 1.45, and 1.1, respectively), 20-m sprint (ES = – 0.50, – 0.61, and – 0.36), change of direction performance (ES = – 1.22, – 1.26, and – 1.09), maximal strength (ES = 1.68, 2.29, and 1.17), maximum oxygen uptake (V̇O2max) (ES = 1.09, 1.59, and 0.92), and peak (ES = 1.82, 1.85, and 0.82) and average power output (ES = 1.39, 1.32, and 1.07) after 6 weeks of training. Comparative analysis of individual adaptive responses to training indicated that the CAF6 led to insignificantly greater effects in vertical jump (ES = 1.45), maximal strength (ES = 2.29), and V̇O2max (ES = 1.59) with lower residuals in individual changes and lower coefficient of variations (CV) in mean group changes. Regarding sprint and CODS performance, both experimental groups indicated similar changes, residuals in individual changes, and CVs in mean group changes. Overall, consuming 6 mg·kg–1 body mass caffeine induces superior adaptations in aerobic fitness, anaerobic power, and sport-specific performance measures, with lower inter-individual variability in the adaptations and more homogenized changes over the training period.
Publisher
Springer Science and Business Media LLC
Reference50 articles.
1. Simenz, C. J., Dugan, C. A. & Ebben, W. P. Strength and conditioning practices of National Basketball Association strength and conditioning coaches. J. Strength Cond. Res. 19, 495–504 (2005).
2. Stojanović, E. et al. The activity demands and physiological responses encountered during basketball match-play: A systematic review. Sports Med. 48, 111–135 (2018).
3. Scanlan, A. T., Dascombe, B. J., Kidcaff, A. P., Peucker, J. L. & Dalbo, V. J. Gender-specific activity demands experienced during semiprofessional basketball game play. Int. J. Sports Physiol. Perform. 10, 618–625 (2015).
4. Chaouachi, A. et al. Lower limb maximal dynamic strength and agility determinants in elite basketball players. J. Strength Cond. Res. 23, 1570–1577 (2009).
5. Sperlich, P. F., Behringer, M. & Mester, J. The effects of resistance training interventions on vertical jump performance in basketball players: A meta-analysis. J. Sports Med. Phys. Fit. 56, 874–883 (2016).