When we think of muscles the first thing that usually comes to mind is movement and strength. However, these remarkable tissues do much more than move our bodies—they also play a crucial role in the body’s endocrine system, secreting hormones that impact various aspects of our health and metabolism! Let’s delve into the fascinating world of magical muscles and their endocrine functions.
Muscles as Endocrine Organs
Originally thought of as only responsible for movement, we now know that muscles are dynamic endocrine organs that produce and release bioactive molecules known as myokines. Myokines are specialised signalling molecules that exert effects both locally within the muscle tissue, and systemically throughout the body.
Key Myokines and their Functions
- Interleukin-6 (IL-6): This myokine is released during exercise and has anti-inflammatory properties. It helps regulate energy metabolism, plays a role in glucose homeostasis, and supports immune function.
- Irisin: Produced in response to physical activity, irisin stimulates the browning of white adipose tissue (great news as changes white fat to metabolically active brown fat), thus contributing to increased energy expenditure and influencing metabolic health and less fat storage.
- Myostatin: Although primarily known for its part in regulating muscle growth, myostatin also influences metabolism and adipose tissue function. Inhibition of myostatin has been linked to improved insulin sensitivity and reduced fat accumulation.
- Fibroblast Growth Factor 21 (FGF21): Muscle-derived FGF21 affects glucose and lipid (fat soluble compounds) metabolism, helping to adapt to exercise and fasting. It promotes the breakdown of stored fat for energy production.
Impact on Metabolism and Health
The secretion of myokines by muscles has profound implications for metabolic health and overall well-being:
Within Systematic Kinesiology we are able to use specific muscle tests that isolate muscles to find out what is going on within the tissue. We can find out how that muscle working on its own? The testing reveals if the lymphatic flow is impaired, if the blood supply is reduced, whether stress is effecting function or if there are nutritional or electrical deficiencies/blockages.
As we move muscles, apply pressure and stimulate lymph and blood flow we are activating the myokines which takes the health benefits of Systematic Kinesiology to a whole new level as listed below.
- Metabolic Regulation: Myokines contribute to the regulation of glucose and lipid metabolism, promoting insulin sensitivity and aiding in the management of conditions like obesity and type 2 diabetes.
- Inflammation Control: Certain myokines possess anti-inflammatory properties, which can help ease chronic inflammation associated with metabolic disorders.
- Bone Health: Myokines such as IL-6 can influence bone metabolism, highlighting the interconnectedness of muscle function with skeletal health.
Exercise and Myokine Production
This secretion of myokines is significantly impacted by exercise. Physical activity triggers the release of these beneficial molecules, providing a helpful physiological reason for the health benefits of regular exercise.
The conventional view of muscles as mere motors for movement overlooks their complex role in systemic physiology. By functioning as endocrine organs, muscles contribute to metabolic regulation, inflammation control, and overall health maintenance. Understanding the endocrine functions of muscles highlights the importance of physical activity for holistic well-being.
By embracing the exercise we enjoy as a lifestyle choice, we can increase the myokine-mediated benefits of muscle activity to optimize our metabolic health and promote longevity.
In summary, muscles do not just define our physical form—they are sophisticated communicators within our body’s internal network, influencing diverse physiological processes through the secretion of myokines. So what better communication between the muscles and the tester within Systematic Kinesiology to assess the health of our bodies and be able to correct any imbalances we find.
This realization helps us to understand and appreciate the full potential of muscles beyond their traditional role in movement, ultimately empowering us to lead healthier, more vibrant lives.
For your local Systematic Kinesiologist please go to taskuknetwork.org and find out what needs addressing/correcting to relieve symptoms and enhance health & wellbeing.
To learn more about Systematic Kinesiology sign up for our Foundation Course.