Effetti cardiorespiratori degli sprint ripetuti in giovani calciatori

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Abstract

[automatically translated] Purpose: In football, the performance depends on activities involving short-term efforts, sometimes at high intensity, with reduced recovery times. This type of effort can have greater potential arrhythmogenic than efforts, including ceilings, initiated and completed in a phased manner. Repeated sprint possible to assess the performance and training state in young players. The aim of our study was to evaluate the effects of repeated sprints on the cardiorespiratory system in young players of the Sicilian regional representative of the FIGC. Methods: We examined 12 players, mean age 15 ± 1 years. To assess the state of cardiorespiratory fitness were determined in tests by incremental maximal treadmill exercise (YES), the VO2max in ml.Kg-1. min-1 (VO2maxSI) and HRmax in bpm (FCmaxSI). To evaluate the cardiorespiratory effects of repeated sprints, athletes have performed an exercise test cycle ergometer with mechanical brake (SR), which provided 10 maximal sprints "all-out" of 6 seconds, interspersed with 30 seconds of passive recovery. In the series of 10 sprints, they were determined the highest value of VO2 in ml.Kg-1.min-1 (VO2maxSR) and FC in bpm (FCmaxSR). Results: The mean value of VO2maxSI (56.22 ± 3.93 ml.Kg-1.min-1) indicates that the examinees have a good level of aerobic power, reached at a FCmaxSI of 190 ± 8 bpm. The VO2maxSR data collected at the repeated sprint tests show an average value of 42.67 ± 5.57 ml.Kg-1.min-1 (70% of VO2maxSI), reached a FCmaxSR 175 ± 11 bpm (92% the FCmaxSI). conclusions: The data of our study indicate that in repeated sprint examinees determine the rapid heart rate increases, high and persistent in the recovery phase. This data must be taken into account not only for the evaluation of performance but also in the formulation of suitability to practice the sport of football.
Original languageItalian
Number of pages1
Publication statusPublished - 2014

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