A low-cost method for estimating energy expenditure during soccer refereeing.
This study aimed to apply a validated bioenergetics model of sprint running to recordings obtained from commercial basic high-sensitivity global positioning system receivers to estimate energy expenditure and physical activity variables during soccer refereeing. We studied five Italian fifth division referees during 20 official matches while carrying the receivers. By applying the model to the recorded speed and acceleration data, we calculated energy consumption during activity, mass-normalised total energy consumption, total distance, metabolically equivalent distance and their ratio over the entire match and the two halves. Main results were as follows: (match) energy consumption = 4729 ± 608 kJ, mass normalised total energy consumption = 74 ± 8 kJ · kg(-1), total distance = 13,112 ± 1225 m, metabolically equivalent distance = 13,788 ± 1151 m and metabolically equivalent/total distance = 1.05 ± 0.05. By using a very low-cost device, it is possible to estimate the energy expenditure of soccer refereeing. The provided predicting mass-normalised total energy consumption versus total distance equation can supply information about soccer refereeing energy demand.
a Department of Neurological and Movement Sciences , School of Exercise and Sport University of Verona , Verona , Italy.
Luca Paolo
LP
Ardigò
Johnny
J
Padulo
Andrea
A
Zuliani
Carlo
C
Capelli
D000328:Adult; D003365:Costs and Cost Analysis; D004734:Energy Metabolism / Q000502:physiology*; D040362:Geographic Information Systems / Q000191:economics*; D006801:Humans; D008297:Male; D012420:Running / Q000502:physiology; D012916:Soccer / Q000502:physiology*
GPS receiver; activity energy consumption; mass-normalised total energy consumption; soccer referee; team sports