Once healed you should be able to resume normal activities, but always check with your doc.
Imagine your stent very tight in an artery and this is jumping around with the heart with each beat. It won't go anywhere. You can jump up and down for a fortnight, swing golf clubs with all your might for a year continuously and you will not dislodge a stent.
It isn't just resting against the artery wall, it has been squeezed very tightly against it and the spring action of the stent keeps it there.