Data/hora: 11/06/2024 12:11:06

Provedor de dados: | 56
País: | Brazil
Título: | Evaluation of energy expenditure in forward and backward movements performed by soccer referees
Autores: | Paes,M.R.; Fernandez,R.
Data: | 2016-01-01
Ano: | 2016
Palavras-chave: | Referee; Football (soccer); Energy expenditure; Maximal oxygen uptake (VO2max).
Resumo: | The aim of this study was to measure the energy expenditure for locomotor activities usually performed by soccer referees during a match (walking, jogging, and running) under laboratory conditions, and to compare forward with backward movements. The sample was composed by 10 male soccer referees, age 29±7.8 years, body mass 77.5±6.2 kg, stature 1.78±0.07 m and professional experience of 7.33±4.92 years. Referees were evaluated on two separate occasions. On the first day, maximal oxygen uptake (VO2max) was determined by a maximal treadmill test, and on the second day, the oxygen consumption was determined in different speeds of forward and backward movements. The mean VO2max was 41.20±3.60 mL·kg-1·min-1 and the mean heart rate achieved in the last stage of the test was 190.5±7.9 bpm. When results of forward and backward movements were compared at 1.62 m/s (walking speed), we found significant differences in VO2, in metabolic equivalents, and in kcal. However, the same parameters in forward and backward movements at jogging velocities (2.46 m/s) were not significantly different, showing that these motor activities have similar intensity. Backward movements at velocities equivalent to walking and jogging are moderate-intensity activities, with energy expenditure less than 9 kcal. Energy expenditure was overestimated by at least 35% when calculated by mathematical equations. In summary, we observed that backward movements are not high-intensity activities as has been commonly reported, and when calculated using equations available in the literature, energy expenditure was overestimated compared to the values obtained by indirect calorimetry.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000500702
Editor: | Associação Brasileira de Divulgação Científica
Relação: | 10.1590/1414-431x20155061
Formato: | text/html
Fonte: | Brazilian Journal of Medical and Biological Research  v.49 n.5 2016
Fonte: | info:eu-repo/semantics/openAccess