Balance After Stroke: What Can Affect Balance and Rehabilitation

What does “balance” include?

Balance involves keeping the body oriented and the center of mass supported while sitting, standing, moving, or responding to a disturbance. It includes:

A person can perform well in one balance situation and have difficulty in another. Quiet standing in a clinic does not fully represent walking through a busy store, getting up at night, carrying an object, or recovering from a trip.

• steady-state control, such as sitting or standing;
• anticipatory control, such as preparing to reach, stand, or step;
• reactive control, such as responding when the body is unexpectedly displaced;
• dynamic control, such as turning, changing speed, stepping over an obstacle, or walking on an uneven surface; and
• sensory orientation, using information from vision, the inner ear, skin, muscles, and joints to understand body position and movement.

Why can stroke affect balance?

Stroke can alter the brain networks that organize sensation and movement. The resulting balance problem may involve one or several contributors:

The presence of one factor does not prove it is the main cause. Assessment should connect the observed impairment to the actual task and environment.

• weakness or difficulty generating force at the right time;
• reduced selective motor control or coordination;
• altered sensation or reduced awareness of pressure and body position;
• visual-field loss, double vision, eye-movement problems, or difficulty processing visual information;
• spatial neglect or reduced awareness of one side;
• impaired trunk control or weight shifting;
• dizziness or altered vestibular processing;
• attention, planning, judgment, or dual-task difficulty;
• pain, spasticity, joint restriction, or fatigue;
• cardiovascular or medication-related symptoms; and
• fear, reduced confidence, or avoidance after a fall or near-fall.

How is balance related to walking?

Walking requires repeated control of the body while the base of support changes. A person must shift weight, advance a limb, clear the foot, place it accurately, manage momentum, adapt to the surface, and respond to unexpected events.

Balance is therefore one part of walking recovery, but the two are not interchangeable. Someone may stand steadily yet struggle with turning or obstacle negotiation. Another person may walk with an aid but be unable to recover safely from a disturbance. Walking speed alone does not capture all of these demands.

Does a balance problem mean someone will fall?

Not necessarily. A balance impairment may increase fall risk, but falls are multidimensional. Risk may also be shaped by medications, blood pressure, vision, cognition, urgency, footwear, environment, behavior, assistance, and exposure to challenging situations.

No single balance test can predict every fall. A useful review considers fall and near-fall history, circumstances, injury, mobility, transfers, equipment, cognition, symptoms, and the home or community context.

What may a rehabilitation assessment include?

Depending on safety and goals, the rehabilitation team may examine:

Tests and scores can help describe performance and track change. They should be interpreted alongside daily function rather than treated as a complete verdict.

• sitting and trunk control;
• standing with different foot positions or supports;
• weight shifting and reaching;
• standing up, sitting down, and transfers;
• stepping, turning, stopping, and changing direction;
• walking speed, endurance, obstacle negotiation, and different surfaces;
• responses to expected or unexpected disturbances;
• vision, sensation, neglect, coordination, and vestibular symptoms;
• attention or another task performed while moving;
• the use and fit of canes, walkers, wheelchairs, orthoses, railings, or assistance;
• fatigue, pain, confidence, and symptom response; and
• the environments and activities the person wants or needs to navigate.

What can balance rehabilitation address?

Rehabilitation may work on the component or the whole task. Examples include trunk activity, supported or unsupported sitting and standing, reaching, weight transfer, stepping, walking, strength or capacity, sensory orientation, and practice in relevant environments.

The task may be changed by adjusting:

These are rehabilitation variables, not a universal progression. Closing the eyes, standing on an unstable surface, removing a mobility aid, or adding a second task can make a task substantially less safe. Such changes should not be copied from a generic list without considering assessment and supervision.

• the amount or type of support;
• foot position or base of support;
• movement direction and speed;
• surface and environmental complexity;
• visual information;
• head or trunk movement;
• whether another cognitive or manual task is added;
• repetitions, duration, recovery, and total dose; or
• the mobility aid, orthosis, railing, or assistance available.

Why task specificity matters

Improving a component does not guarantee improvement in every activity. More symmetrical standing, for example, may not automatically improve reactive stepping, community walking, or independence. Practice should therefore connect to the reader's meaningful outcome: reaching in the kitchen, turning in a bathroom, walking to transportation, moving through a crowded place, or participating with family.

Research supports physical rehabilitation and several balance-training approaches on average, but studies use different participants, doses, settings, interventions, and outcome measures. The evidence does not identify one best program for every person.

How do vision and attention affect balance?

Balance uses sensory information. Changes in visual fields, eye movements, spatial attention, sensation, or vestibular processing may alter orientation and obstacle awareness. Busy environments can add competing visual and cognitive demands.

Attention matters because some movement that was previously automatic may require more conscious effort after stroke. Talking, carrying an object, scanning for signs, or making a decision while walking can change performance. This does not mean that everyone should practice dual tasks; it means assessment should notice when real-life demands expose a problem.

What role do confidence and assistance play?

Confidence can affect whether and how a person participates. Fear after a fall may lead someone to move more cautiously or avoid activity. That response is understandable, but confidence is not simply a mindset problem: it should be considered alongside actual ability, symptoms, environment, and support.

A cane, walker, wheelchair, orthosis, railing, or another person's assistance may improve safety or participation. Using support is not evidence of failed recovery. Equipment should be selected and reassessed for the person, task, and environment. This article cannot determine whether a device should be started, changed, or discontinued.

When should balance be reassessed?

Ask for reassessment when balance changes, falls or near-falls occur, a device no longer fits the situation, the home or community environment changes, fatigue or symptoms interfere, or goals move into a more demanding activity.

Seek urgent assessment for new or rapidly worsening dizziness, fainting, chest pain or pressure, severe or unusual shortness of breath, repeated unexplained falls, or inability to walk safely. Sudden facial droop, one-sided weakness or numbness, speech difficulty, vision change, severe imbalance, or sudden severe headache may be another stroke or emergency; call emergency services immediately.