Akademik

изо всех сил

разг. with all one's might, as hard as one can, as best (as) one can, hammer and tongs;
{(бежать}}) at top speed, at full speed, as fast as one can;
flat-out, all-out

F with all ones might ;

Большой англо-русский и русско-английский словарь. 2001.