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Muscle Weakness

Ajanta Bhattacharyya Jun 18, 2019
Muscle weakness is often misunderstood as muscle tiredness. One experiences muscle weakness when the nerves that stimulate body muscle movement do not work properly. This immobility of the muscles does not allow them to contract or relax.
Muscle weakness can be identified through proper diagnosis of the strength of the body. Some types of muscle weaknesses include muscle fatigue, chronic fatigue syndrome, and proximal muscle weakness. There are other kinds of muscle weaknesses too, like perceived, central, and peripheral muscle weakness.
When a person needs to put excess effort on a certain task, he or she feels a sensation in the body muscles. This is known as perceived weakness of the muscles. Central muscle weakness refers to complete body muscle weakness, whereas, peripheral weakness refers to muscle weakness in a specific part of the body.


Muscle weakness occurs generally due to trauma, sleep disorders, depression, neuromuscular diseases, and heart as well as kidney diseases. In case of adults, certain medications, neurological disorders, muscle pain, muscle cramps, stroke, diabetes, hyperthyroidism, and excessive consumption of alcohol may cause muscle weakness.
Some other factors that cause it include:
  • Excess amount of exercise
  • Fluid loss
  • Electrolyte imbalance
  • Nervous system disorder
  • Muscular dystrophy
  • Metabolic diseases
  • Thyroid diseases
  • Nerve disorders
  • Vitamin D deficiency
  • Cerebral palsy
  • Diarrhea
  • Anemia
  • Hyperthyroidism Polymyositis or inflammation of muscles
  • Malnutrition

Signs and Symptoms

Muscle weakness refers to the muscle's inability to perform an expected task, like rising from a chair or inability to walk. Symptoms include:
  • Fatigue
  • Numbness in muscles
  • Inability to support one's arms and legs
  • Inability to do physical activities
  • Drowsiness
  • Prolonged tiredness
  • Sleepiness
  • Malaise
  • Lethargy
  • Excessive yawning


Diagnosis generally includes a blood test, electromyography, MRI, CT-scan, after a thorough evaluation of its symptoms.


This is not a severe disorder, and the given measures can help in treating it.


Exercising on a regular basis helps in increasing endurance and appetite.
Exercises like aerobics, light stretching, meditation, and yoga play a vital role in keeping one fit and healthy to fight against all kinds of ailments. However, before doing any exercise, it is good to take the advice of a physiotherapist.

Take Rest

Overexertion may cause muscle weakness. So, in between your daily activities, whenever you feel fatigued, take rest. Sleep for at least for 7 hours daily. Take rest after heavy meals, but keep a time gap between the meals and the sleep.

Drink Enough Water

Drinking ample amounts of water on a regular basis keeps one hydrated. It also aids digestion and helps maintain digestive health.

Reduce Stress

Relaxation techniques like visualization and meditation can reduce stress, which is often the cause of muscle weakness.

Proper Nutrition

A balanced diet plays an important role in reducing muscle weakness. It is best to avoid oily and fried stuff. Besides, carbohydrate-rich foods like fruits, veggies, cereals, and grains play a vital role in keeping you fit and healthy.
The treatment of muscle weakness depends on its severity and type. Some physical therapies like manual therapy, mobilization, and muscle strengthening exercises, prevent muscle contraction and help in retaining their physical strength.