Meaning of 言いながら in Japanese

Saying which, I did the opposite.

Puffing and panting we continued to run with renewed vigor.

Although he says he might return to Iran to marry, his plans after Japan are up in the air.

And since she refused to accept it, she had been living in extreme discomfort, exclaiming: "Why should we spend all the capital we are ever likely to have tying ourselves down to a place we detest!"