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Difference in cSP in ms after heading relative to baseline. Immediately after heading cSP duration increased on average by 5.3(± 5.7)ms (*p < 0.05) which within participants is an 5.4(± 4.8)% average increase from baseline values. This increase detectable immediately after heading normalized over the four follow-up timepoints (p < 0.05) with values apparently returning to baseline level. Error bars indicate the 95% confidence intervals.
