Fig. 5
From: Muscles adaptation to aging and training: architectural changes – a randomised trial

Quadriceps (a) and triceps surae (b) muscles volumes between old and young groups. Vastus Lateralis (VL), Vastus Intermedius (VI), Vastus Medialis (VM), Rectus Femoris (RF), Quadriceps (Quad), Medial gastrocnemius (MG), Lateral gastrocnemius (LG), Soleus (Sol), Triceps Surae (TS); * Significant difference between young and old (p < 0.05), ** (p < 0.01) and *** (p < 0.001)