The effect of DN-AMPK on PPARβ/δ expression by endurance exercise. DN-AMPK, pAMPK, and PPARβ/δ expressions were analyzed after a single bout of swimming exercise in 2 weeks DN-AMPK over expressed TA muscle. Sed, sedentary; Ex, a single bout of swimming exercise; pAMPK, phosphor AMPK; DN-AMPK, dominant negative AMPK. *: p<.01 significantly different from EV group (within group); † : p<.01 significantly different from Sed group (between group).