Hi everyone! My name is Raúl Ferrández and I’m going to tell you about muscular hypertrophy training. First of all, I’m going to describe you that concept:
Hypertrophy is, by definition, the enlargement of an organ or tissue from the increase in size of its cells. Not to be confused with hyperplasia, the process of increasing the number of cells, hypertrophy is the process of increasing the size of the cells that are already there.
This occurs through a physiologic process that leads to an increased number of contractile proteins (actin and myosin) in each muscle fiber.
Hormones and cytokines play an integral role in the hypertrophic response, serving as upstream regulators of anabolic processes. Elevated anabolic hormone concentrations in- crease the likelihood of receptor interactions, facilitating protein metabolism and subsequent muscle growth (Schoenfeld, 2010).
It is hypothesized that 3 primary factors are responsible for initiating the hypertrophic response to resistance exercise: mechanical tension, muscle damage, and metabolic stress.
1-Mechanical tension: Mechanically induced tension produced both by force generation and stretch is considered essential to muscle growth.
2-Muscle damage: Exercise training can result in localized damage to muscle tissue which, under certain conditions, is theorized to generate a hypertrophic response.
3-Metabolic stress: An anabolic role of exercise- induced metabolic stress and some have speculated that metabolite accumulation may be more important than high force development in optimizing the hypertrophic response to training. Metabolic stress manifests as a result ofexercise that relies on anaerobic glycolysis for ATP production, which results in the subsequent buildup of metabolites such as lactate, hydrogen ion, inorganic phosphate, creatine, and others
I hope that information is useful. In next posts we will explain more concepts about this type of resistance training in order to apply at home. See you!
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