If you don't get this feeling after a training session, you should reflect on what it is.
Why: training movements are not allowed? Wrong method? Not strong enough? Too long break between groups? Or overtraining? Under normal circumstances, there will be a "pumping feeling" after practicing several groups.
Congestion is a local blood circulation disorder.
Due to the obstruction of venous return, blood accumulates in veins and capillaries, which increases the blood content of local tissues or organs, which is called venous congestion or passive congestion, or congestion for short. It is more common than arteries and has great clinical significance.