Published on: 4/28/2025
When experiencing sudden difficulty walking, it's important to consider brain conditions such as stroke. However, gait changes can also stem from problems with muscles, nerves, blood flow, or age-related changes.
Sudden trouble walking should be taken seriously as it might be a sign of stroke. A stroke can affect walking by disrupting signals from the brain that control movement and balance. When stroke affects certain areas of the brain, it can lead to weakness or paralysis on one side of the body, making it difficult to maintain proper walking mechanics. Strokes are medical emergency. Other brain conditions such as multiple sclerosis can also affect walking. Damage to peripheral nerves, which connect the brain and spinal cord to muscles and sensory organs, can also cause walking difficulties. These nerve conditions may result from diabetes, injuries, or compression of nerve pathways. Muscular issues such as muscle inflammation, muscle weakness, or conditions like myositis can cause muscle pain and stiffness. These muscle-related problems can develop suddenly and significantly impact mobility. In older adults, reduced blood flow to the legs—a condition known as claudication—can cause pain and difficulty walking. Changes in walking patterns may also occur in older adults experiencing early signs of dementia. Difficulty walking can have many causes, but seek immediate medical evaluation if the problem occurs suddenly or is accompanied by dizziness or weakness.
(References)
Jain S, Kolber MR. A stiff-legged gait: benign acute childhood myositis. CMAJ. 2009 Nov 10;181(10):711-3. doi: 10.1503/cmaj.090781. Epub 2009 Oct 13. PMID: 19825926; PMCID: PMC2774365.
Boripuntakul S, Kamnardsiri T, Lord SR, Maiarin S, Worakul P, Sungkarat S. Gait variability during abrupt slow and fast speed transitions in older adults with mild cognitive impairment. PLoS One. 2022 Oct 21;17(10):e0276658. doi: 10.1371/journal.pone.0276658. PMID: 36269750; PMCID: PMC9586342.
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