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The physiological response to simulated hurling match-play

Updated: Jun 28, 2020

Kieran Collins, James Morton, Alistair McRoberts & Dominic Doran (2018 )BASES Conference 2018 – Programme and Abstracts, Journal of Sports Sciences,36:sup1,1-94,DOI:10.1080/02640414.2018.1521633

It is of value to applied practitioners to gain an appreciation of the physiological stress of hurling such that players can be adequately trained to meet the demands of the game. The aim of the current investigations was to assess the physiological cost of an intermittent exercise simulation which replicates the work-rate of elite hurling match-play. In addition the relationship between VO2 and heart rate response during hurling specific intermittent exercise was assessed. Twelve hurling players (Age: 26±6yrs; Height: 1.76±0.04m; Body Mass: 75±5 kg; VO2max: 57±4 ml·kg-1·min-1) participated in the current investigation. The experiment was based on 2 separate visits. During the first visit, the participants undertook laboratory testing. During the second visit, the participants undertook a hurling simulation protocol (familiarisation sessions were previously undertaken) composed of two 36-minute periods interspersed with a 15-minute rest. The oxygen consumption for the hurling shuttle protocol was 3.6±0.2 l.min-1. The protocol elicited a mean VO2 of 48.1±3.7 which represents 84±7 % of V02max. The VO2 peak attained during the protocol was 56±5.1 ml·kg-1·min-1. The mean HR during the protocol was was 158±8 b∙min-1 which represents 80±3 % HRmax. The heart rate/ lactate derived iTrimp training load was 545 ± 41 AU. The observed breathing frequency and ventilation was 40±6 b.min and 72±10 l.min. The mean respiratory exchange ration was .82±.04 with a global energy cost of 5.7±.8 MJ. Carbohydrate oxidation was 1.9±.8 g.min-1 which ilicits a total carbohydrate utilisation of 136.8 ± 57.7 g. The rate of fat oxidation was 1.1±0.3 g.min-1. Blood lactate concentrations during the simulation varied between 3.1 and 6.4 mmol.l-1 with the lowest value observed during the first half. The correlation coefficient for the HR-VO2 regression during the simulation protocol was r = 0.84 ± 0.12 and was significantly different from the maximal VO2 test (r = 0.94 ± 0.04; p < 0.001; ES = 0.4). The estimated VO2 derived from the HR-VO2 regression analysis were lower than actual values (48.1 ± 3.7 versus 45.1 ± 4.2 ml kg−1.min−1; ES = 0.15). The results of this descriptive study demonstrate a relatively high mean physiological cost of the hurling simulation protocol. Whilst the sport is predominantly aerobic in nature, important activities require anaerobic metabolism and require due attention. Considerable fluctuations in several physiological variables represent the intermittent nature of the sport.

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