Statistical evaluation of the number of myonuclei in myofibers of TA muscles from different genotypes (L) (n = 5 WT/5 linc-MYH KO/4 Ino80 KO/5 dKO/3 CreERT dKO animals in J/K, n = 6 WT/6 linc-MYH KO/5 Ino80 KO/6 dKO/3 CreERT dKO animals in L **p < 0.01, ****p <0.0001, > 31 MSCs /animal in K; ANOVA test with multiple comparisons against WT. Sidak-Holm correction was used. Data are mean ± S.E.M.). 