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Evaluation Of Emotional State, Heart Rate Frequency And Skiing Technique In Ski Hiking

100%
Nikonovs I., Grants J., Kravalis I.
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vol. 22
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issue 1
41-45
EN
Introduction. The aim of this study was to assess selected psychological, physiological and technical factors related to ski hiking in order to offer some recommendations for ski hikers and ski hike organisers. Material and methods. The hike lasted 8 hours and the hikers covered a distance of 24 kilometres. The ski hikers' emotional state was assessed three times: before the ski hike, 1 hour after the hike and 16 hours after the hike. Their skiing technique was evaluated during the first part of the hike and at the end of the hike. The heart rate of the skiers was recorded over the course of the hike. The data were then processed and analysed statistically. Results. When comparing the data collected for the selected factors during the ski hike, some significant correlations were found. A significant correlation was observed between the level of fear experienced before the ski hike and cycle length for the diagonal stride (r=−0.791, p<0.05), which meant that the hikers with poorer ski technique felt more afraid before the hike. However, these hikers also showed lower levels of sadness 16 hours after the hike (r=0.804, p<0.05). A significant negative correlation (r=−0.849, p<0.05) was found when comparing the average heart rate frequency and the level of anger experienced after the hike, that is the hikers who had a lower heart rate were angrier after the hike. The results helped to develop some important recommendations for ski hikers and ski hike organisers.
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Kinematic Variables Evolution During a 200-m Maximum Test in Young Paddlers

86%
Vaquero-Cristóbal R., Alacid F., López-Plaza D., Muyor J. M., López-Miñarro P. A.
Journal of Human Kinetics
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2013
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vol. 38
15-22
EN
The objective of this research was to determine the kinematic variables evolution in a sprint canoeing maximal test over 200 m, comparing women and men kayak paddlers and men canoeists. Speed evolution, cycle frequency, cycle length and cycle index were analysed each 50 m section in fifty-two young paddlers (20 male kayakers, 17 female kayakers and 15 male canoeists; 13-14 years-old). Recordings were taken from a boat which followed each paddler trial in order to measure the variables cited above. Kinematic evolution was similar in the three categories, the speed and cycle index decreased through the test after the first 50 m. Significant differences were observed among most of the sections in speed and the cycle index (p<0.05 and <0.01, respectively). Cycle length remained stable showing the lowest values in the first section when compared with the others (p<0.01). Cycle frequency progressively decreased along the distance. Significant differences were identified in the majority of the sections (p<0.01). Men kayakers attained higher values in all the variables than women kayakers and men canoeists, but only such variables as speed, cycle length and cycle index were observed to be significantly higher (p<0.01). Moreover, lower kinematic values were obtained from men canoeists. The study of the evolution of kinematic variables can provide valuable information for athletes and coaches while planning training sessions and competitions.
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