Intensidade de esforço na competição de dança esportiva em cadeira de rodas

Abstract

The Wheelchair Sport Dance (WSD) it is an adapted sport modality of the ballroom dance practiced in Brazil since 2001, however, no there are studies that approach the physiologic answers to the effort that the athletes/dancers submit in a competition of WSD. Purpose: to describe the values of heart rate (HR) and the levels of the lactate concentrations [La] sanguine, to verify the behavior of the curve of the HR of the dancers wheelchairs during a competition of WSD, to compare the physical load between the rounds and the specific heart answer among the dances Samba, Rumba and Jive. It is last, to compare HRpeak (heart rate peak maxim) obtained by the athletes in the competition, front HRMcal (maximum heart rate calculated) foreseen for the age. Methods: They participated in this study 9 (nine) athletes wheelchairs with disabled (four with spinal cord injury, three with poliomyelitis sequel and one with bifid spine), being four men and five women, with average 34,6±10,5 years , 53,7±9 kg of body mass, 4,1±2,4 years of practice and that competed during the VII Brazilian Championship of WSD. For the registration of HR the Polar Team Systeam was used during all the competition, already for to measured of the [La] five were accomplished. The graphic representation of the curve of HR was demonstrated compatible with intermittent physical activity, the average of the physical load of the rounds was of 89,9%HRpeak not having significant difference among the same ones. In relation to the dance styles, there was significant difference of intensity, being most intense Jive than the Samba and the Rumba not having difference among those two. The average of HRMpeak (189 bpm) it was larger (p?0,05) than the average of HRMcal (165,3 bpm). In relation to the levels of [La] most of the appraised athletes reached pick values between 4,2 and 6,2 mM. Conclusion: WSD is a modality with intermittent characteristics, the average intensity during the rounds is compatible with an activity of high intensity and very probably the athletes reach HRMduring the competition.