Arginine Blunts Growth Hormone Response to Resistance Training: Will the -41% Reduction in Post-Workout Growth Hormone Release Hamper Your Strength & Size Gains?
Arginine-based pre-workout products are more popular with guys than with girls. Could this be the reason that only women complain about unlovedly rapid muscle gains? ;-) No, this is not a typo! The verb in the headline of today's SuppVersity article really is "to blunt", as in "to neutralize partially" (OED Online 2013). I have to admit that I was also surprised, when I spotted the study over in the "ahead of print" section of the International Journal of Sports Nutrition and Exercise Metabolism . Unless Forbes, Harber and Bell, of whom you will learn later that they've already conducted another 'arginine study', messed up, the results of their most recent experiment do yet leave little doubt: Arginine, an amino acid that is used to test the function of the GH-releasing somatotropic cells within the lateral wings of the anterior pituitary, does - when it is administered at a dosage of 0.075 g·kg-1 body mass right before an acute bout of...