All you need to know about muscle types and metabolism -

All you need to know about muscle types and metabolism

A man holding his hands up

Our bodies are designed to break down food as fuel for energy to maintain physical activity. Metabolism is the process by which your body uses oxygen to break down food. Muscle metabolism is the relationship between your body’s fuel source (ammonia) and the goods and services you want to use it for (like food) during a given time. Muscle metabolism is the process by which your body uses oxygen and produces energy. This article explains different analogies related to muscle metabolism.

Types of Muscles

A close up of a person holding a cell phone

Muscle metabolism, or how fast our body breaks down muscle tissue for energy, is a key factor in how ripped you are.  There are three types of muscles: Primary muscle is located in the arms and legs; secondary muscles are located between the primary muscles and the abdomen, and abdominal muscles are located at the back of the body. Your metabolic rate for each type of muscle determines how much metabolic energy it requires to maintain itself. Each type of muscle stores fat in body tissues as it burns energy for muscle contraction.

Process of metabolism

A woman holding a camera

Muscle metabolism is very complex and deals with the breakdown of sugar and carbohydrates into energy within the body. The conversion of carbs into energy passes through the liver, where it is broken down into glucose. Glucose used for energy can be broken down into two molecules of ATP (and one molecule of ATP plus another molecule called leucine). This process is regulated by hormones (like insulin) that are secreted into the bloodstream by the pancreas when hungry. Muscle metabolism is the breakdown of fats and proteins within our bodies.

Muscle Fibers

Muscle fibers are bundles of proteins that connect muscles to bones. They provide both strength and movement, but the type and quantity of muscle fiber you have ultimately determines how efficiently you use energy. There are three main types of muscle fibers: slow-twitch (slow oxidative fibers), Fast twitch (fast oxidative fibers), and Quests (complex protein fibers).  Each type of muscle fiber has a specific job to do in your body. The types of muscle fibers are responsible for producing an individual’s strength, or endurance.

Muscle Fatigue

Muscle fatigue is a state of being fatigued from exercise. It is a result of the body’s inability to utilize protein properly as it calls on muscle tissues for metabolic purposes, but unused protein remains in the muscle and begins to collect around fibers that are fatigued. As a result of this accumulation of protein around fatigued muscles, a person can experience uncomfortable sensations such as pounding heart rate, muscle spasms, and severe headaches.


The Human body is one of the most fascinating creations of our planet. It can grow stronger, move faster, and do things that a car cannot do. One reason for this is predominantly because of metabolic workarounds. Your muscle cells are the powerhouse of your body. Muscle metabolism can be defined as the rate at which calories are burned for heat generation. Athletes and training professionals need to have basic knowledge related to muscle metabolism which is the ultimate goal of this article.

Subscribe to our monthly Newsletter