作者: Liam Harper
DOI:
关键词: Psychological intervention 、 Operations management 、 Engineering 、 Physical medicine and rehabilitation 、 Technical performance 、 Physical performance 、 Perception 、 Sprint 、 Physiological responses 、 Fat oxidation 、 Notational analysis
摘要: Soccer matches have a typical duration of 90 min. However, when are drawn in some knockout cup scenarios and an outright winner is required, additional 30 min period, termed extra-time (ET), played. The performance physiological responses to soccer-specific exercise been extensively investigated, however; there paucity research investigating the demands 120 (i.e., requiring ET). Accordingly, aims this thesis were 1) elucidate professional practitioner perceptions ET, 2) investigate during prolonged actual simulated match-play, 3) examine influence nutritional intervention on ET. To actuate aim one, qualitative approach online survey) was used assess ET their current applied practices. To accomplish two, quantitative projects utilising analysis techniques analogue match-play (simulated soccer match) used. three, same effect carbohydrate-electrolyte gels ingested prior physiology. Practitioners generally account for preparing recovering players majority (91%) practitioners want be conducted ET. Using notational analysis, reductions technical passing dribbling) observed Furthermore, using match protocol, perturbations both physiology compared previous occur. Specifically physical sprint speeds) shooting speed) parameters, taxing endogenous fuel sources, dehydration, shifts substrate utilisation move towards fat oxidation as source) observed. ingestion improved dribbling performance, unable attenuate decrements hydration status. In conclusion, influences responses. In agreement with working soccer, more required efficacy interventions (particularly hydro-nutritional interventions) that improve ameliorate metabolism.