De or het podiumtraining?

The correct Dutch article is:

de podiumtraining

Rule Words ending in -ing: almost always de. See the rule

How to use podiumtraining

the podiumtrainingde podiumtraining
this podiumtrainingdeze podiumtraining
that podiumtrainingdie podiumtraining
our podiumtrainingonze podiumtraining
your podiumtrainingjouw podiumtraining
every podiumtrainingelke podiumtraining
which podiumtraining?welke podiumtraining?
a big podiumtraining / the big podiumtrainingeen grote podiumtraining, de grote podiumtraining