Adrenaline and noradrenaline are the ‘fight or flight’ hormones secreted by the adrenal medulla (located above the kidneys). Released into the blood stream during exercise, these hormones stimulate motor neural pathways that serve to generate greater force during muscle contraction.
Adrenaline response is shown to be higher in trained individuals. Also, exercise training leads to a “sports adrenal adaptation” – an increased capacity of the adrenal medulla to secrete these hormones.
Regular strength training is shown to reduce adrenaline response during sub maximal lifts. A recent study has demonstrated that during very heavy (1RM) weight training the neural pathways and muscles they connect to actually ‘sensitize’ to the response of adrenaline.
Muscles learn to contract harder and generate greater force with less adrenaline secretion.
The study, from the lab of strength research legend, Paavol Komi, used active but not highly trained subjects in an effort to examine the relationship between force production and these hormones in as little as two weeks of training.
Using electromyographic activity (EMG) and MVC (maximum voluntary isometric contraction) methods to test muscle force and firing efficiency. Research demonstrated that although muscles do sensitize to the effects of adrenaline and noradrenaline, this only serves to make circumstances more efficient – higher levels of the hormone help to generate greater strength increases. The athletes that produced the greatest strength gains also possessed the highest levels of these hormones.
This research gives us insights on how to use the supplement Dymetadrine Xtreme to smash through training plateaus. The World’s first performance supplement to tap into the nerve-muscle contraction force pathway.
Training serves to sensitize motor units and muscle nerve endings to initial adrenaline levels. Dymetadrine Xtreme works by increasing adrenaline levels in blood. Exposing ‘sensitized’ muscle receptors to higher levels of adrenaline only serves to enhance force production.
Over a short time muscles will relearn to exert this new level of force utilizing less adrenaline. New training poundages will be reached with greater efficiency, and muscles will be ready for their next re-introduction to high adrenaline levels via supplementation.
Source: Plasma catacholamine response and neural adaptatoion during short-term resistance training. Eur.J.Appl. Physiol
