Did you know that weakness in legs is a common complaint in patients. It has been observed that in the last twenty years, many people especially younger adults are facing instability, heaviness and weakness in legs. Earlier, this was seen only in elderly but now there are also working professionals and even students who are going through it.
This weakness can be mild or serious causing inability to walk or even stand. After all, what causes it, what are its symptoms and how to deal with it. Let’s read all about it in detail.
What Is Weakness in Legs?
Weakness in legs refers to a condition in which the patients feel reduced strength in one or both lower limbs. This feeling can be experienced in the form of difficulty in standing, shakiness while walking, imbalance, and trouble in climbing stairs.
Leg weakness can be subjective or objective. While in subjective, you might get a feeling of fatigue or muscle loss while in objective, there is an actual loss of muscle strength. This condition may appear gradually or suddenly, both having different underlying causes.
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Common Causes of Weakness in Legs
Leg weakness causes can be many ranging from problem in nerves, blood circulation, spine, metabolism or muscles. Let’s read about these in detail.
A. Nutritional Deficiencies
When it comes to weak legs, one of the most common causes is nutritional deficiency. With increase in consumption of processed diets, and reduced sunlight exposure, this problem has worsened. While deficiency of Vitamin D causes increased risk of falls and muscle weakness, Vitamin B12 deficiency leads to numbness, nerve damage, weakness and tingling. Further, iron deficiency reduces delivery or oxygen to muscles causing fatigue in legs.
B. Neurological Causes
Weakness in legs can occur when the nerves that supply nutrition to legs are affected. The common neurological conditions that cause leg weakness include multiple sclerosis, stroke, sciatica, peripheral neuropathy or Guillain-barre syndrome. Peripheral neuropathy is generally due to deficiency of Vitamin B12 or diabetes while Sciatic is a condition in which the nerve gets compressed in the lower spine.
C. Muscle Disorders
One of the leg weakness causes is muscle disorder in the human body. There are various conditions which affect muscles directly such as Muscular dystrophy, Myopathy, and inflammatory muscle diseases. In these conditions, the patient may have difficulty in climbing the stairs or getting up from a chair.
D. Spine Problems
Spinal problems are likely to cause weakness in legs as they play a critical role in strengthening the legs. There are conditions such as spinal stenosis, degenerative disc disease, and lumbar disc herniation which causes nerve compression leading to back pain, and weakness which is also shown in legs.
E. Circulatory Problems
Did you know that poor circulation can lead to improper blood flow to the legs creating problems such as cold feet, weak pulses and cramping. Peripheral artery disease can be commonly seen in diabetics, older adults and diabetics.
F. Chronic Medical Conditions
There are certain chronic medical conditions which causes leg weakness. If the patient is diabetic, has thyroid disorder, heart disease or chronic kidney disease, then he/she is likely to experience weakness in legs. This happens because these conditions affect the nerve function, circulation and muscle health.
G. Sedentary Lifestyle and Deconditioning
Today, one of the major reasons behind weakness in legs is reduction in physical activity. Lack of exercise and prolonged sitting have led to obesity leading to poor balance, and reduction in endurance. This is seen in majorly in the office workers and students.
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Symptoms Associated with Weakness in Legs
Weakness in legs may or may not appear with other symptoms depending upon the root cause. Symptoms of leg weakness are back pain, swelling in legs, fatigues, muscle cramps, numbness, difficulty in balancing, tingling and frequent falls. If there are other symptoms such as severe back pain, sudden weakness in one side of the body, slurred speech or loss of bowel control then you require immediate medical attention.
Treatment Options for Weakness in Legs
Weakness in legs treatment depends on the underlying cause that has been diagnosed. Here is a list of treatments that are usually given.
A. Correcting Nutritional Deficiencies –
If the weakness in legs is due to nutritional deficiencies, then it can be cured through proper intake as prescribed. It can be Vitamin B12 injection or oral supplements, iron therapy, Vitamin D supplements, or a balanced diet. Further, sun light exposure is also important if it is due to the lack of Vitamin D.
B. Physical Therapy and Exercise
One of the best treatments to strengthen leg weakness is exercise. It can be walking, cycling, strength training, balancing or stretching. Exercise regularly helps in improving the nerve function, blood circulation and muscle mass.
C. Managing Chronic Diseases
If the weakness is due to chronic disease that the patient is suffering from then cure is its treatment. If the patient is diabetic then proper control of blood sugar is necessary, same way in case of thyroid and blood pressure. This will help in preventing muscle and nerve damage.
D. Medications
Depending on the diagnosis, the patient may be prescribed medicines that will help ease the issue. These medicines can be pain relievers, muscle relaxants, anti-inflammatory drugs, or nerve-stabilizing medications.
E. Surgical Treatment
If the weakness in legs is due to the severe spinal stenosis or disc prolapse then there might be a need for surgery. It will help in relieving the nerve compression leading to proper working of legs.
F. Lifestyle Modifications
If the legs are suffering due to inactivity, then you might be required to avoid prolonged sitting. If there are other reasons such as alcohol or smoking then you must reduce or quit their consumption. Further, hydration and maintaining healthy weight are also important.
Conclusion
Weakness in legs in no longer a sign of aging, it has become a common issue which is also seen in adults and teenagers now a days. The reason can be a chronic disease, neurological issues, nutritional deficiencies or sedentary lifestyle. At Goyal Hospital, our doctors are highly experienced in diagnosing the accurate reason behind leg weakness and giving the right treatment accordingly.
If you have been facing any of the symptoms such as tingling, numbness, frequent falls and cramping along with other symptoms then book an appointment right away!
Frequently asked questions (FAQs)
1. What are the common causes of weakness in legs?
Ans. The weakness in legs causes that are commonly found are chronic disease, muscle disorders, nerve compression, vitamin deficiencies, neurological issues, and poor blood circulation.
2. When should leg weakness be taken seriously?
Ans. You must seek immediate medical attention if weakness in legs has appeared suddenly or affects one side of the body. If you are facing other symptoms as well such as severe back pain, loss of bladder of bowel control, or difficulty in speaking then you must get it evaluated by a doctor.
3. What symptoms are found in leg weakness?
Ans. Leg weakness symptoms include tingling, balance issues, muscle cramps, numbness, fatigue, difficulty in climbing stairs, walking and sometimes even standing.
4. How is weakness in the legs diagnosed?
Ans. The weakness in legs can be diagnosed through doppler studies, muscle strength, MRI of spine, and blood tests.
5. What are the treatments for leg weakness?
Ans. Leg weakness treatments depend on the cause. If it is due to vitamin deficiency then supplement and dietary suggestions are given. In case of Nerve compression, physiotherapy helps. If it is due to inactivity then proper exercise and strength training is helpful. Further, lifestyle improvement is necessary for proper blood circulation and disease treatment in chronic conditions.