Repeated-sprint ability in professional and amateur soccer players

Abstract

This study investigated the repeated-sprint ability (RSA) physiological responses to a standardized, high-intensity, intermittent running test (HIT), maximal oxygen uptake (VO(2) (max)) and oxygen uptake (VO(2)) kinetics in male soccer players (professional (N = 12) and amateur (N = 11)) of different playing standards. The relationships between each of these factors and RSA performance were determined. Mean RSA time (RSA(mean)) and RSA decrement were related to the physiological responses to HIT (blood lactate concentration ([La(-)]), r = 0.66 and 0.77; blood bicarbonate concentration ([HCO(3)-]), r = -0.71 and -0.75; and blood hydrogen ion concentration ([H(+)]), r = 0.61 and 0.73; all p < 0.05), VO(2) (max) (r = -0.45 and -0.65, p < 0.05), and time constant (tau) in VO(2) kinetics (r = 0.62 and 0.62, p < 0.05). VO(2) (max) was not different between playing standards (58.5 +/- 4.0 vs. 56.3 +/- 4.5 mL.kg(-1).min(-1); p = 0.227); however, the professional players demonstrated better RSA(mean) (7.17 +/- 0.09 vs. 7.41 +/- 0.19 s; p = 0.001), lower [La-] (5.7 +/- 1.5 vs. 8.2 +/- 2.2 mmol.L(-1); p = 0.004), lower [H+] (46.5 +/- 5.3 vs. 52.2 +/- 3.4 mmol.L(-1); p = 0.007), and higher [HCO3-] (20.1 +/- 2.1 vs. 17.7 +/- 1.7 mmol.L(-1); p = 0.006) after the HIT, and a shorter in VO2 kinetics (27.2 +/- 3.5 vs. 32.3 +/- 6.0 s; p = 0.019). These results show that RSA performance, the physiological response to the HIT, and differentiate between professional- and amateur-standard soccer players. Our results also show that RSA performance is related to VO(2) max, tau, and selected physiological responses to a standardized, high-intensity, intermittent exercise.

A influência de variáveis aeróbias e anaeróbias no teste de “sprints” repetidos

“…Until the present moment, few studies have observed that the aerobic parameters such as ventilatory threshold 15 , VO 2 max 15,17,19 , MAV 11 , velocity in which the VO 2 max is reached (vVO 2 max) 13 , tau [19][20] were correlated with RS performance. However, the variables which signi cantly correlates are not always similar among studies, and thus, it is important to highlight that in the present study, as well as others, none aerobic variable correlated with the TT 10,12,16,[21][22]24 .…”

“…On this base, some studies, though not all 11 , observed positive correlations between tau on submaximal exercise and Sdec on RS test (r > 0.60) [19][20] . Indeed, the three aforementioned studies analyzed the kinetics of oxygen consumption with moderate intensities; yet this intensity does not show the same metabolic characteristic, as well as, the same adjust of the oxidative metabolism of the supra-maximal intensities 32 .…”

“…ese results corroborates with previous ones 10-11, 13, 20 , suggesting that VO 2 max may increase the VO 2 amplitude during the RS and, consequently, increase the aerobic contribution on the RS performance 38 . Still, it is important to highlight that increases of these aerobic parameters seems to accelerate the phosphocreatine resynthesis, as well as, the clearance of metabolites derived from the sprints (e.g., H + ) [39][40] , that is, important aspects to attenuate the fatigue on the RS 19,23 .…”

Kapittel 14: Fysiske krav hjå profesjonelle fotballspelarar i OBOS-ligaen i kamp

“…2014). Andre kommersielle monitoreringssystem (Adidas miCoach, Prozone, Amisco Pro og SICS) er basert på GPS-sporing eller dataalgoritmar ved å prosessere video (Bradley et al, 2010;Di Salvo et al, 2010;Rampinini, Impellizzeri, Castagna, Coutts, & Wisloff, 2009;Rampinini, Sassi, et al, 2009). Desse monitoreringssystema har vist større måleusikkerheit enn radiobaserte system (Portas et al, 2010).…”

Effects of Two Warm-Up Modalities on Short-Term Maximal Performance in Soccer Players: Didactic Modeling

“…Therefore, RSA is considered to more effectively simulate and reproduce soccer game performance as compared with a single bout of sprint Spencer et al, 2005). In this context, Rampinini et al (2009) have shown that RSA performance is related to soccer game sprint performance and that soccer coaches have implemented a series of short sprints, in order to prepare their players for the coming match performance. In that regard, RSA tests consisting of less than 10 sprint bouts with 20-to 30-second recovery have been recommended (Stolen et al, 2005).…”