The Catecholamines are a group of 3 hormones secreted by the adrenal glands, epinephrine, norepinephrine and dopamine. When you get nervous or feel what is known as “an adrenaline rush” you are experiencing release of this group of hormones.
They are important for strength and power because these hormones act to increase force production and contraction of muscle fibres. (24).
Intense weight training with heavy resistance and no rest between sets and exercises has been shown to maintain increased levels of epinephrine and norepinephrine (25).
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