Fig. 5

Vitamin D receptor expression in primary myotubes exposed to a 3-day treatment with saturated fatty acid. Myotubes were treated with 100 µM palmitic fatty acid coupled to BSA (3-day palmitate) or to BSA alone (control cells). Data are presented as means ± SEM, n = 21 per group. A Comparison between IIM before PT- white; IIM after PT- light grey; healthy controls—dark gray, n = 7 per group. Paired t-test was used to asses the effect of stimulation in each group of subjects. B global effect of palmitate independent from IIM or training effect, n = 21. Unpaired t-test was used to compare the means between groups. PT – personal training