muscular
moo-skoh-LOH-zoh
'Atletico' and 'muscoloso' are similar but 'atletico' emphasises overall fitness, 'muscoloso' emphasises muscle size.
È muscoloso grazie agli allenamenti in palestra.
He is muscular thanks to his gym training.
Preferisce un fisico muscoloso e slanciato.
She prefers a muscular and slim physique.