The phrase ‘they reacted well to that’ or ‘that was pure reflex’ is commonly used within football, as individuals try to explain a sudden movement or action from someone. However very few individuals actually understand exactly what is meant by a reflex action and what the scientific concept behind the phrase actually is.
‘A reflex action is an uncontrolled and, almost instantaneous response to stimuli received.’ Common actions include, moving your hand away from excessive heat or shielding your eyes from a bright light.
It is possible to develop and train a reflex action through the repetition of motor actions so that the individual subconsciously reacts to a similar situation in the same manner each time.
The whole concept of developing reflex actions is a crucial component of training and in particular goalkeeper training, as often the ball is travelling too fast after a shot for the goalkeeper to consciously react. Instead their body and mind have undertaken repetitive training in similar situations so that each limb knows exactly where they should be. Thus increasing the goalkeepers ability to make themselves big and prevent the ball entering the goal.