Time-motion analysis and heart rate recordings of South African Rugby Union referees

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dc.contributor.author Kraak, Wilbur Julio
dc.contributor.author Malan, Dawid Daniel Jacobus
dc.contributor.author Van den Berg, Pieter Hendrik
dc.date.accessioned 2012-08-28T09:24:14Z
dc.date.available 2012-08-28T09:24:14Z
dc.date.issued 2011
dc.identifier.citation Kraak, W.J. et al. 2011. Time-motion analysis and heart rate recordings of South African Rugby Union referees. African journal for physical, health education, recreation and dance (AJPHERD), 17(4: 2):842-852. [http://reference.sabinet.co.za/sa_epublication/ajpherd] [http://www.ajol.info/index.php/ajpherd] en_US
dc.identifier.issn 1117-4315
dc.identifier.uri http://hdl.handle.net/10394/7073
dc.description.abstract The objective of this study was to determine the movement patterns, heart rates and work-to-rest ratios of South African Rugby Union referees during the two halves of match-refereeing. The referees were monitored by means of a video camera in 16 matches during a tournament. The frequency and duration of the different movement patterns (standing still, walking, jogging, lateral movements and sprinting) during each half of the matches were analysed using the Dartfish TeamPro software package. Heart rate (HR) was recorded to determine the intensity of the movement patterns by a Suunto Team pack monitor system. A large practical significance difference was found between the mean frequency for standing still (d=2.53), walking (d=2.50), jogging (d=2.42), lateral movements (d=2.86) and sprinting (d=1.31), as well as for the mean duration for standing still (d=2.05), lateral movements (d=0.76) and sprinting (d=0.77) between the two halves of match refereeing.The intensity displayed a large practical significant difference between the time spent in the maximal (d=2.07), anaerobic threshold (d=0.92) and sub-threshold (d=7.90) heart rate zones between the two halves.The first and second halves had a work-to-rest ratio of 1:3.5 and 1:5 respectively. The study revealed that several of the measures for movement patterns increased significantly during the second half. en_US
dc.description.uri http://reference.sabinet.co.za/webx/access/electronic_journals/ajpherd/ajpherd_v17_n4_si2_a10.pdf
dc.language.iso en en_US
dc.publisher LAM Publications en_US
dc.subject time-motion analysis en_US
dc.subject heart rate recordings en_US
dc.subject Rugby Union en_US
dc.title Time-motion analysis and heart rate recordings of South African Rugby Union referees en_US
dc.type Article en_US

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