De or het sportstimulering?

The correct Dutch article is:

de sportstimulering

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

How to use sportstimulering

the sportstimuleringde sportstimulering
this sportstimuleringdeze sportstimulering
that sportstimuleringdie sportstimulering
our sportstimuleringonze sportstimulering
your sportstimuleringjouw sportstimulering
every sportstimuleringelke sportstimulering
which sportstimulering?welke sportstimulering?
a big sportstimulering / the big sportstimuleringeen grote sportstimulering, de grote sportstimulering