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Heart-rate change (beats/min [bpm]) during the heat-tolerance testing: the difference between heat-tolerant and heat-intolerant participants among those after heat stroke (right) and those after another exertional heat illness (left). The box designates the 95% confidence interval, and the central horizontal bar designates the mean. Abbreviations: EHI, exertional heat illness; EHS, exertional heat stroke.
