NFKB1 and myocardial infarction: Comparing the sedentary and exercised groups 1 and 4 weeks post-MI using ANOVA on ranks, we noted that after 4 weeks of healing post-IM, both the sedentary and the exercised groups presented significantly lower levels of NF-κB in the healthy myocardium (SI1xSI4 p<0.001; EI1xEI4, p<0.001).