Abstract
This study aimed to analyze anthropometric and whole-body/muscle-localized bioelectrical impedance vector analysis (BIVA) adaptations and their relation to creatine kinase (CK) as a biomarker of muscle damage in a group of seven male players in the maximum category of professional rink hockey. There were three checkpoint assessments in relation to a high-intensity training session: pre-session (PRE), post-session (POST), and 24 h-post-session (POST24H). The resistance, reactance, and impedance module were adjusted by height (R/h, Xc/h, and Z/h, respectively). The Wilcoxon signed-rank test was used to compare the data at baseline and follow-up, while Spearman correlation was used to explore the relationship between CK and the rest of the parameters. The results registered a decrease in body mass at POST (p = 0.03) and a reestablishment at POST24H (p = 0.02). Whole-body BIVA registered a significant increase in R/h between PRE–to–POST (p = 0.02) and returned to baseline values at POST24H (p = 0.02), which was expected since this parameter is related to hydration processes. Muscle-localized BIVA in the rectus femoris muscle showed an increase in both Xc/h and phase angle in POST (p = 0.04 and p = 0.03, respectively) and a decrease in Xc/h at POST24H (p = 0.02). CK correlated with R/h in the rectus femoris at all the checkpoints (PRE–to–POST: r = 0.75, p = 0.05; PRE–to–POST24H: r = 0.81, p = 0.03; POST–to–POST24H: r = 0.82, p = 0.02). Our results indicate that BIVA is a sensitive methodology to assess general and muscle-localized hydration induced by a high-intensity training session in rink hockey players. A correlation between BIVA and CK was also reported.
Highlights
Rink hockey, known as roller hockey, is a sport in which two teams of five players use curve-shaped wooden sticks to try to score more goals than the opponent with a rubber ball on a rectangular closed pitch
The bioelectrical impedance vector analysis (BIVA) mean graph (Figure 2) showed the mean hockey players’ vector before training shifted to the left and(T2upwards
The present present study experienced a signifiThe study showed that professional rink hockey players experienced aa sigThe present study showed showedthat thatprofessional professionalrink rinkhockey hockeyplayers players experienced sigcant vector displacement after an intense training session and during the recovery period nificant vector displacement after an intense training session and during the recovery nificant vector displacement after an intense training session and during the recovery pepedue to physiological adaptations, that was detected by whole-body and localized riod riod due due to to physiological physiological adaptations, adaptations, that that was was detected detected by by whole-body whole-body and and localized localized
Summary
Known as roller hockey, is a sport in which two teams of five players (four players and a goalkeeper) use curve-shaped wooden sticks to try to score more goals than the opponent with a rubber ball on a rectangular closed pitch. It is well known that the character or specificity of physical effort in rink hockey is highly complex, mainly because the technical and tactical actions are subject to a significantly higher rate than in other sports [4], requiring both high intensity short and long-duration efforts [2]. Without being able to fully recover [3] This type of training generates physiological changes in the players, producing an adaptation according to the stimulus and the workload. An adequate control of this workload is important since it allows for the optimization of sports performance, reduces the risk of injury, and prevents overtraining.
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