Keywords
Heart rate
Canoeing Slalom
How to Cite
Abstract
The trials of canoeing slalom are characterized by high intensity descents in rivers form.
High values of heart rate (HR) are observed in this sport. However, data about HR
variability (HRV) and effects of training in this parameter not yet been investigated. In this
way, the aim of the present study was analyze form the HRV of slalom kayakers, the
effects of seven weeks of training monitored in the HR autonomic modulation. Six
kayakers were evaluated before and after seven weeks of training. The HR and the R-R
intervals were obtained by 15 minutes, with the athletes at rest in sitting posture. The HRV
was analyzed in the time domain. The training was performed in six weekly sessions of 2
h/day approximately. The values obtained shows parasympathetic predominance in
kayaker HR modulation without significant differences between the HRV indices. The
training monitoring show that just the 3ª week of training show high values when
compared to the others, being the HRV not changed in this period. Accordingly whit the
results, the slalom kayakers shows parasympathetic predominance relative to autonomic
modulation of HR, which is not modified after seven weeks of training.
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