sciatica leg weakness

Sciatica Leg Weakness Causes

Sciatica, caused by inflammation due to a herniated disc, can cause weakness in the legs and feet due to the compression or irritation of the sciatic nerve. This nerve is the longest in the body, running from the lower back, through the hips and buttocks, and down each leg. Here’s how sciatica leads to leg muscle weakness.

Nerve Impairment

When the sciatic nerve is compressed or irritated, it can disrupt the nerve signals to the muscles in the legs and feet. This disruption impairs the muscles’ ability to function normally, leading to weakness.

Muscle Inactivity

Sciatica often causes pain and discomfort, which may lead to reduced physical activity. Prolonged inactivity or disuse of the muscles in the legs and feet can result in muscle weakening over time.

Protective Muscle Response

In response to sciatic nerve pain, individuals may unconsciously alter their posture or gait to minimize discomfort. These compensatory mechanisms can lead to uneven muscle use and subsequent weakening of certain muscle groups.

Reflex Inhibition

Pain and inflammation associated with sciatica can trigger a protective reflex that inhibits muscle activation to prevent further pain or damage. This reflex inhibition can result in decreased muscle strength.

Chronic Nerve Compression

In cases where sciatica is caused by prolonged nerve compression, such as from a herniated disc, the ongoing pressure on the nerve can cause chronic weakness in the muscles it innervates.

Treatment At The Nerve & Disc Institute

The Nerve & Disc Institute treats sciatica leg weakness without need of chiropractic adjustment, injections, or surgery. Your body will do all the work with our assistance. Find out if you’re eligible for our treatment at one of our locations in Clinton Township, Farmington, or Grand Blanc, MI.