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Box and whiskers plots of percent of voluntary activation (%Act, %) of the lower limb extensors assessed before (Pre) and after (Post) HIT and IRT. Lines and asterisks indicate the significant differences between the mean values (∗P < 0.05). The box extends from the 25th to 75th percentiles. The line in the middle of the box is plotted at the median and “+” at the mean. Whiskers range from a Min to Max value.
