Gait and mobility disorders

Disease Description (Causes and Symptoms)

• Definition: Abnormalities of gait and mobility refer to a condition in which normal walking is difficult because the body's center of gravity shifts excessively during walking or because movements of the left and right sides or the limbs are unbalanced. Walking requires the integrated functioning of the central nervous system, peripheral nervous system, musculoskeletal system, and sensory systems (vision, vestibular sense, and proprioception); therefore, it can occur when one or more of these systems become impaired.
• Major pathophysiological factors: Central nervous system damage (stroke, parkinsonian syndromes, cerebellar lesions, dementia, etc.), peripheral nerve or muscle lesions (paralytic gait), musculoskeletal structural abnormalities (joint contractures or pain), pain-avoidance gait, etc.
• Representative symptom types (examples):
  • Hemiplegic gait (stroke): Extension and fixed dorsiflexion of the affected lower limb, circumduction gait, etc.
  • Ataxic gait (cerebellar lesions): Unsteady, staggering gait
  • Parkinsonian gait: Trunk flexion, reduced stride length and shuffling steps, difficulty initiating, stopping, and changing direction (freezing), and reduced movement of the upper limbs and pelvis
  • Spastic/scissoring gait (cerebral palsy): The feet cross due to bilateral adduction and spasticity
  • Gait impairment associated with cognitive decline (dementia): Unsteadiness due to impaired attention and orientation, and pathological gait that is sensitive to environmental factors
• Common complications and risks: Falls and fractures, joint contractures, chronic pain, and reduced physical fitness and increased cardiovascular risk due to decreased activity.

Treatment Methods and Precautions

• Standard non-pharmacological treatment (applicable to most causes)
  • Rehabilitation: Balance, mobility, and muscle-strengthening exercises; functional gait training; vestibular and proprioceptive training; stair and obstacle-crossing training, etc.
  • Assistive devices: Canes, walkers, ankle-foot orthoses (AFOs), etc.—appropriate selection and customized adjustment are important
  • Gait-assistance devices and technologies: Body-weight-supported treadmills, robotic gait training, external rhythmic stimulation (metronome and music cueing), etc.
• Main treatments by cause (general recommendations)
  • Stroke: Early rehabilitation in the acute phase; functional electrical stimulation (FES) to assist weakened muscles; orthoses (AFOs) and Botox (for ankle-joint spasticity); robotic gait therapy may be possible
  • Parkinson's disease (parkinsonian syndromes): Dopaminergic medications (e.g., levodopa) to improve overall motor symptoms, gait cueing (auditory and visual), and physical therapy; deep brain stimulation (DBS) may be considered when medication effects are insufficient
  • Cerebral palsy: Early and continuous rehabilitation, orthoses and Botox (to relieve spasticity), selective dorsal rhizotomy (SDR) or orthopedic corrective surgery (if necessary)
  • Dementia-related gait impairment: Ensuring environmental safety (slip prevention and improved lighting), simplified instructions and visual cues, use of assistive devices, and supervision
• Medications and procedures
  • Botox (to relieve muscle hypertonia), antiparkinsonian medications (dopamine agonists/levodopa), and, if necessary, analgesics or muscle relaxants (for pain and spasticity control)
  • Surgical treatment: Orthopedic correction of deformities, SDR (for specific cases of cerebral palsy), DBS (for selected patients with Parkinson's disease)
• Precautions and self-management
  • Because the risk of falls is high, ensure safety at home (clear floors, install handrails, and provide appropriate lighting)
  • Learn how to use orthoses and canes under the guidance of a professional (improper use may instead increase risk)
  • Observe and report medication side effects (dizziness, hypotension, dyskinesia, etc.)
  • Immediate reassessment is necessary if pain or spasticity worsens
• Prognosis: Varies according to the cause (temporary improvement may be possible in some transient causes; for chronic or degenerative causes, treatment focuses on rehabilitation aimed at maintaining or improving function)

Outpatient Visit Checklist (Preparation and Example Questions)

• Items to bring (recommended)
  • List of current medications (including doses and dosing times)
  • Copies or summaries of previous test results (brain MRI/CT, electromyography (EMG), joint X-rays, etc.)
  • Record of recent symptom changes: time of onset, pattern of progression (gradual/acute), number of falls, and whether injuries occurred
  • Whether an assistive device is used and its type (bringing a photo or the actual device is recommended)
  • Video of walking (a 10–20-second walking video filmed from the front and side with a smartphone)
  • Information about the living environment (home layout, presence of stairs, and whether an assistant is present while walking)
• Items related to symptoms that are useful to check in advance of the outpatient visit
  • Presence of pain, numbness, or sensory abnormalities
  • Patterns of spasticity, spasms, or muscle weakness
  • Whether there have been changes in cognitive function, vision, or hearing
  • Urination and bowel movements (to check for accompanying neurological symptoms)
• Examples of information to tell the doctor first during the outpatient visit
  • Whether there have been any recent falls or major injuries
  • Changes in medication use (medications recently started or discontinued)
  • Whether any tests have been scheduled or results are available

Examples of General Questions to Ask the Doctor

• "What is the most likely cause of my gait impairment?"
• "What degree of improvement can be expected with treatment, and what is the prognosis?"
• "What rehabilitation (physical therapy) program do you recommend, and how often and for how long should it be done?"
• "What side effects or precautions should I be aware of with my current medications?"
• "What measures should I take at home to reduce the risk of falls?"

Examples of Disease-Specific Questions

• If Parkinson's disease is suspected: "Can medication adjustment alone improve freezing of gait and reduced stride length? What are the criteria for determining whether DBS (deep brain stimulation) would help when symptoms are severe?"
• For stroke-related hemiplegic gait: "When is it appropriate to apply an orthosis (AFO) or functional electrical stimulation (FES) to improve my current gait pattern (e.g., a stiff-legged gait caused by hemiplegia)? Which patient groups may benefit from robotic gait therapy?"

(As the necessary tests and treatment options vary according to the individual condition, please consult a neurologist or rehabilitation medicine specialist for an accurate diagnosis and an individualized treatment plan.)