What Causes Skeletal Muscle Fatigue?

Jasmine_Strength24_Skeletal Muscle FatigueThe physiological response known as skeletal muscle fatigue is the result of frequent contraction and expansion of skeletal muscles.  Soreness and tearing may result from excessive fatigue.  Knowing how to control muscular exhaustion can help protect you from these problems.

Skeletal muscle fatigue and exercise

Cellular respiration is necessary for proper muscle function.  During exercise, the stress load and frequency of movement change the pathways used in the process.  Prolonged and/or strenuous exercises are the most frequent causes of exhausting stress.  Workout sessions should be planned based on your personal strength and stamina, not simply taken out of books or magazines.

Basic mechanisms of muscular contraction during exercise

When a person voluntarily moves, the brain sends a message through an electric messenger system.  This system then initiates the efflux of calcium ions out of the cells.  The ionic imbalance causes a muscular response.

How skeletal muscle fatigue is aggravated by calcium depletion?

Columbia University researchers recently discovered how calcium depletion exaggerates muscle fatigue.  When calcium ions are expelled through pores, the lack of calcium ions inhibits normal muscle contraction, which results in muscle fatigue.  After a few days of rest, the body stops such leakage on its own.

Preventing skeletal muscle fatigue

Fatigue and exhaustion are common, especially for those who are obese.  Many suffering from obesity suffer from fatigue due to the exercise they do in attempting to lose weight.  It is important that they continue such efforts, but they should do so while taking steps to minimize the effects of fatigue.  Here are some ways they can do so

  • Drink plenty of water – Between sixty and seventy percent of the human body is water.  Drinking plenty of it serves to correct electrochemical imbalances and restore electrolytes.  Six glasses of water a day, plus one for every twenty-five pounds you are overweight, is a good benchmark for those leading sedentary or near-sedentary lifestyles.  Those engaging in exercise should drink more.
  • Consume carbohydrates and protein – Protein improves the muscles’ ability to flex and contract, while carbohydrates are used as fuel.  Both are needed to ensure peak muscle function.  Fruits and vegetables, whole grains, and potatoes are sources of good carbohydrates.  Chicken and fish provide excellent sources of protein without the fat that comes with many types of meat.
  • Get plenty of rest – Sleep helps to restore the body to its peak efficiency.  About seven hours of sleep per night generally leads to peak efficiency, though some people do need a bit more or less.  Going more than an hour or so outside this range can significantly increase fatigue for most people.
  • Consider supplements or multi-vitamins – Multivitamins and other supplements can help make up for deficiencies in your diet by targeting specific needs.  Speak with your doctor to find out if he has recommendations for products that could help you with your specific needs.

Optimum efficiency, performance, and health are best achieved with a healthy muscular system.  Like any other system, this needs regular maintenance.  Exercise is a great way to improve your health in general and your muscular system in particular.  Whether triggered by exercise or other factors, skeletal muscle fatigue effects millions of people, but it can be minimized with a healthy diet, adequate water consumption, and the right amount of sleep.

About Valerie Springfield

Marketing is my profession. Health and wellness is my passion.