EDL and soleus (SOL) Fatigue and Recovery in non-dystrophic and mdx animals. Fatigue and Recovery of (A) EDL muscles from C57 mice from low (⭘; n = 5), medium (■; n = 4) and high (⯅; n = 6) vitamin D enriched diets. (B) EDL muscles from mdx mice from the low (⭘, broken line; n = 6), medium (■, broken line; n = 6) and high (⯅, broken line; n = 5) vitamin D enriched diets. (C) SOL muscles from C57 mice from low (⭘; n = 5), medium (■; n = 4) and high (⯅; n = 6) vitamin D enriched diets and (D) SOL muscles from mdx mice from the low (⭘, broken line; n = 6), medium (■, broken line; n = 6) and high (⯅, broken line; n = 5) vitamin D enriched diets. Symbols indicate: * p < 0.05, significantly different from low diet). # p < 0.05, significantly different from the medium diet. ^ p < 0.05, significantly different from the C57 strain.