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Fig. 2 | BMC Sports Science, Medicine and Rehabilitation

Fig. 2

From: Can heat conditions affect the heart rate responses, perception of effort, and technical performance of young male football players during small-sided games? a comparative study

Fig. 2

Descriptive statistics of the mean heart rate (HR) and rate of perceived exertion (RPE) for the overall participants, and split by age group (under-16, U16; and under-19, U19). *Significantly different within-group. (a) meanHR of the overall group; (b) meanHR of the under-16; (c) meanHR of the under-18; (d) RPE of the overall group; (e) RPE of the under-16; (f) RPE of the under-19

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