A Pilot Study of the Physiological Demands of Futsal Referees Engaged in International Friendly Matches

Abstract

Futsal is a FIFA sanctioned form of 5-a-side football. It is controlled by two referees who run up and down the touchlines either side of the pitch ensuring the laws of the game are enforced. The match is played over two halves of 20 minutes, with the clock being stopped every time the ball goes out of play; so each half can last up to 40 minutes including stoppage time. To date there has been minimal research which has looked at the physiological demands of refereeing futsal. This pilot study was undertaken over consecutive days when two International futsal games took place involving four referees. Heart rate, core temperature, blood lactate and hydration status were monitored prior to the match, again at half time and at full time. The results showed that the referees operated at between 81 and 84% Heart Rate Maximum (HR max ). There was a marked difference between the first and second referee in both games and between the first and second halves. Core temperature increased during the game with the referees becoming progressively dehydrated towards the end of the game. Blood lactate was found on average to be higher at the end of the first half compared to the end of the second half (2.33 vs. 1.8 mmol.l ). In conclusion, the major findings show that further investigation is needed into the physiological demands of Futsal Refereeing and that in future, activity profiling should also be considered.

Analysis of activity patterns, physiological demands and decision-making performance of elite Futsal referees during matches

“…The total number of activities performed in the present study (1539 ± 130) is slightly higher than the previous study and total match duration is similar to previous Futsal studies (Dixon, 2014b;Rebelo et al, 2011 andDo ramac andWatsford, 2006). There was a higher amount of jogging, sprinting and backwards running, and less walking in the present study (compared to Rebelo et al, 2011) whereas the amount of LIR, MIR, HIR and sideways running were similar.…”

Aktuální stav poznání o pohybové aktivitě rozhodčích futsalu

“…1 -tj. jedná se o publikace: Dixon, 2014;Kresta, 2014;Rebelo, Ascenacao, Magalhaes, & Krustrup, 2007;Rebelo, Ascenacao, Magalhaes, & Krustrup, 2009;Rebelo, Ascensão, Magalhães, Bischoff, Bendiksen, & Krustrup, 2011. Postupně popíšeme, v souladu se sportovně-herní literaturou (Psotta, 2003), relevantní údaje vztahující se k pohybové aktivitě rozhodčích v utkání, tj. typ pohybových aktivit; objem pohybových aktivit (překonaná vzdálenost lokomocí); intenzitu zatížení.…”

“…o metodice). Jedna ze studií se zaměřila na mezinárodní přátelská utkání reprezentačních družstev (Dixon, 2014), zbylé na národní utkání nejvyšších soutěží daného státu (Kresta, 2014;Rebelo et al, 2007Rebelo et al, , 2009Rebelo et al, , 2011. Většina studií vycházela při sběru dat z malého počtu utkání, proto se domníváme, že data nelze zobecňovat a bude třeba provést další výzkumy s větším počtem respondentů.…”

“…Tyto se shodují, že nejvyšší hodnota byla zjištěna u poločasových údajů, viz tab. 3 (Dixon, 2014;Rebelo et al, 2009Rebelo et al, , 2011. 1,45 ± 0,5 2,33 ± 0,5 1,8 ± 0,71 Kresta (2014)…”

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“…www.efsupit.ro 9 associated with accumulating physical fatigue, which leads to a decrease in the concentration of mindfulness and quick decision-making (Helsen, 2004;Dixon, 2014;Di Salvo, 2009;Hogarth et al,2015;Put et al,2014;Dell, 2016;Larkin, 2018).…”