Abstract
Objectives – To study the water balance of the young ice hockey players (12 to 13 years old) during their training sessions and one match. Methods – Twenty one players of an ice hockey club are weighed before and after two training sessions and one match in order to evaluate their water balance in these different conditions. The exact amount of water ingested by each subject during the tests is measured. Results – Water intakes vary from 0.25 ± 0.51 to 0.84 ± 0.42 l h –1 (mean ± standard deviation) in relation to the type of effort. The percentage of players who do not drink water falls from 65% at the first training session to 0% at the second one and the match. The highest loss is observed during the match. The average heart rate varies between 145 ± 11 and 163 ± 12 beats per minute during training and 171 ± 8 beats per minute during the match. From 0 to 60% of the total time of the players is above the anaerobic threshold, which indicates a very high variability of energy expenditure. Conclusion – The water loss at the end of these tests is close to that observed by some authors for children during physical exercise. The tests show an increase in spontaneous drinking, as, after the second trial, a full rehydration of the players is observed.
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