Mimoun 35 shoulder exercises reps with 30 to 50 percent of 1RM.

Heavy weights are allowed without risk of shoulder injury
There are four different ways to perform the exercise and get great results. Choose what suits your body.
Explanation: EMG is a method of recording electrical activity of skeletal muscles. That the dumbbell press may activate the shoulder muscles at a slightly lower rate than the barbell press.
The shoulder pressure with dumbbells cannot be considered better than the bar so try both and choose what works for you.

Now there are two different positions to perform the exercise - standing and sitting position. Try them and you will notice that the situation standing is more difficult and it is better in results and EMG research supports this, but there is something wrong.
3-You must be careful when you gain weight due to the seriousness of the injury, as it requires the strength of the entire body, from the obese to the shoulders.

In my opinion, the best sitting position is to avoid injury, especially