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MEDICINA DELLO SPORT

A Journal on Sports Medicine


Official Journal of the Italian Sports Medicine Federation
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Medicina dello Sport 2005 March;58(1):23-8

language: English

Validating the relation between heart rate and perceived exertion in a judo competition

Bonitch J. 1, Ramirez J. 1, Femia P. 2, Feriche B. 1, Padial P. 1

1 Department of Physical Education, University of Granada, Granada, Spain;
2 Department of Biostatistics, University of Granada, Granada, Spain


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The objective of this study is to analyze Rating of Perceived Exertion (RPE) validity as an indicator of the judoka’s effort during a competition. Therefore, 8 judokas who were taking part in an international competition, were monitored to register their heart rate (HR) during each combat. At the end of each combat, the participants indicated their effort perception by use of a 15 degree chart. In order to make a statistical analysis, a measure, called Effort Index (Ip), was created. This index integrates judoka’s effort during the combat, expressed in beats per minute (bpm), and the combat length. Results showed a significant correlation between Ip and RPE (p<0.001). We can conclude that RPE is a good effort indicator in a judo competition and therefore, it could be also a valid tool to control and plan judo training sessions.

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