Browsing by Author "Barbosa, Tiago M."
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- Does Warm-Up Have a Beneficial Effect on 100-m Freestyle?Publication . Neiva, Henrique P.; Marques, Mario C.; Fernandes, Ricardo J.; Viana, João L.; Barbosa, Tiago M.; Marinho, Daniel A.To investigate the effect of warm-up on 100-m swimming performance.
- Effects of 10min vs. 20min passive rest after warm-up on 100m freestyle time-trial performance: A randomized crossover studyPublication . Neiva, Henrique P.; Marques, Mário C.; Barbosa, Tiago M.; Izquierdo, Mikel; Viana, João L.; Marinho, Daniel A.The aim of this study was to compare the effect of 10min vs. 20min passive rest post warm-up on performance in a 100m freestyle time-trial.
- Monitoring Accumulated Training and Match Load in Football: A Systematic ReviewPublication . Teixeira, José E.; Forte, Pedro; Ferraz, Ricardo; Leal, Miguel; Ribeiro, Joana; Silva, António J.; Barbosa, Tiago M.; Monteiro, António M.
- The Effects of Different Warm-up Volumes on the 100-m Swimming PerformancePublication . Neiva, Henrique P.; Marques, Mário C.; Barbosa, Tiago M.; Izquierdo, Mikel; Viana, João L.; Teixeira, Ana M.; Marinho, Daniel A.The aim of this study was to compare the effect of 3 different warm-up (WU) volumes on 100-m swimming performance. Eleven male swimmers at the national level completed 3 time trials of 100-m freestyle on separate days and after a standard WU, a short WU (SWU), or a long WU (LWU) in a randomized sequence. All of them replicated some usual sets and drills, and the WU totaled 1,200 m, the SWU totaled 600 m, and the LWU totaled 1,800 m. The swimmers were faster after the WU (59.29 seconds; confidence interval [CI] 95%, 57.98-60.61) and after the SWU (59.38 seconds; CI 95%, 57.92-60.84) compared with the LWU (60.18 seconds; CI 95%, 58.53-61.83). The second 50-m lap after the WU was performed with a higher stroke length (effect size [ES] = 0.77), stroke index (ES = 1.26), and propelling efficiency (ES = 0.78) than that after the SWU. Both WU and SWU resulted in higher pretrial values of blood lactate concentrations [La] compared with LWU (ES = 1.58 and 0.74, respectively), and the testosterone:cortisol levels were increased in WU compared with LWU (ES = 0.86). In addition, the trial after WU caused higher [La] (ES ≥ 0.68) and testosterone:cortisol values compared with the LWU (ES = 0.93). These results suggest that an LWU could impair 100-m freestyle performance. The swimmers showed higher efficiency during the race after a 1200-m WU, suggesting a favorable situation. It highlighted the importance of the [La] and hormonal responses to each particular WU, possibly influencing performance and biomechanical responses during a 100-m race.
- Warm-up for Sprint Swimming: Race-Pace or Aerobic Stimulation? A Randomized StudyPublication . Neiva, Henrique P.; Marques, Mário C.; Barbosa, Tiago M.; Izquierdo, Mikel; Viana, João L.; Teixeira, Ana M.; Marinho, Daniel A.Neiva, HP, Marques, MC, Barbosa, TM, Izquierdo, M, Viana, JL, Teixeira, AM, and Marinho, DA. Warm-up for sprint swimming: race-pace or aerobic stimulation? A randomized study. J Strength Cond Res 31(9): 2423-2431, 2017-The aim of this study was to compare the effects of 2 different warm-up intensities on 100-m swimming performance in a randomized controlled trial. Thirteen competitive swimmers performed two 100-m freestyle time-trials on separate days after either control or experimental warm-up in a randomized design. The control warm-up included a typical race-pace set (4 × 25 m), whereas the experimental warm-up included an aerobic set (8 × 50 m at 98-102% of critical velocity). Cortisol, testosterone, blood lactate ([La]), oxygen uptake (V[Combining Dot Above]O2), heart rate, core (Tcore and Tcorenet) and tympanic temperatures, and rating of perceived exertion (RPE) were monitored. Stroke length (SL), stroke frequency (SF), stroke index (SI), and propelling efficiency (ηp) were assessed for each 50-m lap. We found that V[Combining Dot Above]O2, heart rate, and Tcorenet were higher after experimental warm-up (d > 0.73), but only the positive effect for Tcorenet was maintained until the trial. Performance was not different between conditions (d = 0.07). Experimental warm-up was found to slow SF (mean change ±90% CL = 2.06 ± 1.48%) and increase SL (1.65 ± 1.40%) and ηp (1.87 ± 1.33%) in the first lap. After the time-trials, this warm-up had a positive effect on Tcorenet (d = 0.69) and a negative effect on [La] (d = 0.56). Although the warm-ups had similar outcomes in the 100-m freestyle, performance was achieved through different biomechanical strategies. Stroke length and efficiency were higher in the first lap after the experimental warm-up, whereas SF was higher after control warm-up. Physiological adaptations were observed mainly through an increased Tcore after experimental warm-up. In this condition, the lower [La] after the trial suggests lower dependency on anaerobic metabolism.