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Losing your balance while walking, or feeling imbalanced, can result from: 1  Vestibular problems. Abnormalities in your inner ear can cause a sensation of a floating or heavy head, and unsteadiness in the dark.  Nerve damage to your legs (peripheral neuropathy).
Balance is the ability to stand, and gait is rhythmic stepping movements for travel (locomotion). Balance and gait problems tend to be found in the same individuals. Walking messages are initiated by the motor and premotor cortex and modified by the subcortical nuclei, brainstem, and cerebellum. These all activate the spine's central pattern generator, which coordinates arm and leg movements into rhythmic gait.