n International SportMed Journal - Assessment of heart rate during infants' swim session : original research article




The aim of this study was to compare the heart rate responses of infants performing different basic aquatic motor skills. The sample included 14 infants of 13.7 ± 7.5 months-old and 7.71 ± 7.54 months. Heart rate was assessed with a heart rate monitor adjusted around the infant's chest. The basic aquatic motor skills were: (i) accompanied displacement in a prone position; (ii) accompanied displacement in a back position; (iii) vertical position; (iv) submersion; (v) jumps; (vi) displacement with material; (vii) autonomous displacements. The Friedman test verified a significant difference in heart rate according to the aquatic motor skills performed. Mean rank order from the highest to the lowest value was respectively the heart rate value during immersion, jumps, displacement in prone position, autonomous displacement, vertical position, displacement with equipment aid and displacement in back position. The average heart rate of the full session and the maximal heart rate presented significant associations with infant's age and background during the swim sessions. Thus the heart rate's acute response was dependent on the type of motor skill being performed.


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