Digital Gait Analysis

Detailed assessment of walking and movement using digital technology

Digital gait analysis uses video, sensors or computer-based measurement tools to examine how you walk and how different parts of the body move together.

It can provide additional information about step pattern, balance, symmetry, joint movement and weight transfer that may be difficult to identify through observation alone.

Digital gait analysis may be useful for people recovering from injury or surgery, those experiencing persistent walking difficulties, and people with neurological, orthopaedic or balance-related conditions.

The aim is not to make everyone walk in exactly the same way. Instead, the assessment helps identify movement patterns that may be relevant to your symptoms, mobility or rehabilitation goals.

What is digital gait analysis?

Gait refers to the way you walk.

Digital gait analysis uses technology to record or measure different aspects of walking.

Depending on the equipment available, this may include information about:

• Step length
• Walking speed
• Cadence
• Time spent on each leg
• Foot placement
• Weight distribution
• Joint movement
• Differences between the left and right sides
• Balance during walking
• Changes with different walking speeds

Video may also be used to slow movement down and review particular stages of the walking cycle.

The digital findings are considered alongside a clinical physiotherapy assessment.

Who may benefit from digital gait analysis?

An assessment may be useful if you experience:

• Difficulty walking
• An uneven walking pattern
• Limping
• Reduced walking speed
• Reduced confidence when walking
• Frequent trips or falls
• Difficulty after an injury
• Walking changes after surgery
• Reduced balance
• Weakness affecting one side
• Foot drop
• Difficulty using stairs
• Fatigue that changes the way you walk
• A neurological condition affecting mobility
• Persistent lower-limb pain during walking

Digital gait analysis may also be used to monitor progress during rehabilitation.

What happens during your assessment?

The appointment begins with a discussion about your symptoms and walking.

The physiotherapist may ask about:

• When the walking problem began
• Pain
• Previous injuries
• Previous surgery
• Falls
• Balance
• Walking distance
• Walking aids
• Neurological conditions
• Current exercise
• Activities you find difficult
• Your rehabilitation goals

A physical assessment may also examine:

• Joint movement
• Muscle strength
• Balance
• Coordination
• Sensation where relevant
• Sit-to-stand ability
• Foot and ankle control

You may then be asked to walk while digital measurements or video are recorded.

What can digital gait analysis measure?

The exact information depends on the technology being used.

Walking speed

Walking speed can provide useful information about overall mobility.

A slower speed may be influenced by:

• Pain
• Weakness
• Poor balance
• Reduced confidence
• Neurological changes
• Reduced endurance

Changes in walking speed over time may also help track rehabilitation progress.

Step length

Step length refers to how far you move forward with each step.

Some people naturally take slightly different steps between sides.

More noticeable differences may occur after:

• Injury
• Surgery
• Stroke
• Weakness
• Pain

The assessment helps determine whether the difference is relevant to your mobility.

Cadence

Cadence refers to the number of steps taken over a period of time.

Changes in cadence may influence overall walking speed and stability.

The goal is not to achieve one ideal number of steps per minute.

Cadence is interpreted alongside the rest of your walking pattern.

Time spent on each leg

Digital analysis may identify whether you spend more time supporting yourself on one leg than the other.

This may occur because of:

• Pain
• Weakness
• Reduced confidence
• Neurological conditions
• Recovery after surgery

Rehabilitation can then work on restoring appropriate loading where possible.

Foot placement

Foot position can influence balance and walking efficiency.

The assessment may look at:

• Step width
• Foot direction
• Clearance from the ground
• Heel or forefoot contact

A particular foot position does not automatically need correcting unless it is contributing to symptoms or reduced function.

Understanding the walking cycle

Walking involves several repeated stages.

One foot contacts the ground, the body moves over that leg, the foot pushes away and then swings forwards for the next step.

Digital gait analysis can help examine how these stages differ between sides or change because of injury or neurological problems.

The findings may help explain why certain activities such as:

• Walking further
• Walking faster
• Turning
• Using stairs

feel difficult.

There is no single perfect gait

People naturally walk differently.

Walking pattern can be influenced by:

• Height
• Leg length
• Age
• Strength
• Joint movement
• Previous injuries
• Footwear
• Neurological function

A small difference between sides does not automatically represent a problem.

Changes are most relevant when they are associated with pain, reduced mobility, repeated falls or difficulty completing normal activities.

Digital gait analysis after injury

Lower-limb injuries can temporarily change the way you walk.

You may:

• Take shorter steps
• Avoid loading one leg
• Walk more slowly
• Limp
• Reduce push-off

These changes can be useful during the early stages of injury.

However, they may continue even after pain begins improving.

Digital gait analysis can help identify which aspects of walking still need rehabilitation.

Gait analysis after fracture

After a fracture, walking may be affected by:

• Stiffness
• Weakness
• Pain
• Reduced balance
• Time spent in a cast or brace

Once weight-bearing is medically appropriate, rehabilitation may focus on:

• Restoring joint movement
• Rebuilding strength
• Increasing walking distance
• Improving balance
• Normalising loading

Digital analysis can help monitor how walking changes during this process.

Gait analysis after joint replacement

Following hip or knee replacement, some people continue to walk differently even after the early recovery period.

You may notice:

• A limp
• Reduced step length
• Slower walking
• Reduced confidence on one side

Digital gait analysis may provide additional information about these differences.

Rehabilitation can then focus on:

• Leg strength
• Hip strength
• Balance
• Walking practice
• Endurance

Gait analysis after knee surgery

Knee surgery can temporarily affect:

• Knee movement
• Weight-bearing
• Walking speed
• Step symmetry

Assessment may help determine whether limited strength or joint movement is affecting walking.

The rehabilitation programme can then progress towards more demanding activities as recovery continues.

Gait analysis after hip surgery

Hip surgery may affect:

• Step length
• Hip movement
• Pelvic control
• Confidence loading the operated side

Digital analysis may help identify remaining differences once normal walking begins to return.

These findings can guide strengthening and walking rehabilitation.

Digital gait analysis for neurological rehabilitation

Neurological conditions can affect walking in several ways.

Changes may involve:

• Strength
• Muscle tone
• Coordination
• Balance
• Sensation
• Timing of movement

Digital gait analysis may provide objective information that complements neurological physiotherapy assessment.

It can also help monitor changes during rehabilitation.

Gait analysis after stroke

Stroke can affect one side of the body more than the other.

Walking changes may include:

• Reduced step length
• Difficulty clearing the foot
• Reduced weight through one leg
• Slower walking
• Reduced balance

Digital gait analysis may help quantify these differences.

Rehabilitation may then focus on:

• Strength
• Weight transfer
• Balance
• Foot clearance
• Walking practice
• Increasing speed where appropriate

Parkinson’s and gait analysis

Parkinson’s disease can affect walking through changes such as:

• Shorter steps
• Reduced walking speed
• Difficulty starting
• Difficulty turning
• Reduced arm movement

Digital gait analysis may help measure aspects such as step length and cadence.

The findings can support a rehabilitation programme involving:

• Larger movement practice
• Strength
• Balance
• Walking
• Turning strategies

Multiple sclerosis

Multiple sclerosis can affect walking through:

• Weakness
• Fatigue
• Balance problems
• Foot drop
• Changes in coordination

Digital gait analysis may help identify whether the walking pattern changes as distance or fatigue increases.

Treatment can then focus on the physical factors most relevant to the individual.

Foot drop

Foot drop can make it difficult to lift the front of the foot during walking.

This may lead to:

• Tripping
• Higher stepping
• Reduced walking confidence

Assessment may consider:

• Foot clearance
• Ankle movement
• Strength
• Walking speed

Depending on the cause, rehabilitation may involve:

• Strengthening
• Walking practice
• Orthotic support
• Other neurological rehabilitation strategies

Digital gait analysis for balance problems

Balance difficulties can change:

• Step width
• Walking speed
• Turning
• Step length

Some people compensate by walking more slowly or taking wider steps.

Digital assessment may help identify these patterns.

Rehabilitation may then combine:

• Balance exercises
• Strengthening
• Walking
• Turning
• Uneven-surface practice

Falls and gait analysis

People who have experienced falls may become more cautious when walking.

This can result in:

• Slower walking
• Shorter steps
• Reduced confidence
• Less natural movement

A gait assessment can help identify physical factors that may be contributing to falls risk.

The wider falls assessment may also consider:

• Strength
• Balance
• Vision
• Medication
• Home environment

Gait analysis is therefore only one part of falls prevention.

Gait analysis for older adults

Walking ability may change with age because of:

• Reduced strength
• Joint stiffness
• Balance difficulties
• Reduced activity
• Long-term health conditions

Digital gait analysis may help measure changes in:

• Walking speed
• Step length
• Symmetry
• Balance

The goal is to support useful mobility and independence rather than make walking look identical to that of a younger person.

Digital gait analysis for children

Children with developmental, neurological or orthopaedic movement difficulties may sometimes benefit from more detailed gait assessment.

This may help examine:

• Foot position
• Knee movement
• Hip movement
• Step pattern
• Differences between sides

Children are still growing, so findings need to be interpreted in the context of age and development.

Pain while walking

Pain can cause changes in walking even when the underlying joints and muscles are capable of moving normally.

You may begin:

• Limping
• Shortening one step
• Avoiding one leg
• Walking more slowly

Treatment should address the cause of pain alongside the walking pattern.

Simply asking someone to “walk normally” may not be useful if the painful area has not regained strength or movement.

Hip pain and walking

Hip pain may affect:

• Step length
• Weight transfer
• Walking speed
• Pelvic movement

Assessment may look at:

• Hip strength
• Joint movement
• Balance
• Walking pattern

Rehabilitation can then target the physical limitations that appear most relevant.

Knee pain and walking

Knee pain may lead to:

• Reduced knee bending
• Shorter steps
• Reduced weight-bearing
• Slower walking

Digital gait analysis may help show how much the pattern differs between sides.

Strength and mobility rehabilitation can then be progressed alongside walking practice.

Foot and ankle pain

Foot or ankle problems may alter:

• Initial foot contact
• Push-off
• Step length
• Walking speed

Assessment should consider:

• Foot and ankle strength
• Joint movement
• Pain
• Footwear
• Previous injury

The gait pattern itself is only part of the picture.

Walking with a mobility aid

Digital gait analysis may also be completed when someone uses:

• A walking stick
• Crutches
• A walking frame

The aim may be to assess whether the aid:

• Improves balance
• Changes walking symmetry
• Allows greater speed
• Reduces pain

The most suitable aid depends on the individual condition and mobility goals.

Orthotics and gait

Some people use braces or orthotic devices to support walking.

This may include:

• Ankle-foot orthoses
• Foot orthotics
• Other lower-limb supports

Gait may sometimes be compared:

• With the device
• Without the device
• After an adjustment

This can help determine whether the support is improving functional walking.

Walking speed and independence

Walking speed is not just a performance measurement.

It can influence whether someone feels able to:

• Cross a road
• Walk around shops
• Travel independently
• Keep up with other people

Increasing comfortable walking speed may therefore be an important rehabilitation goal.

Walking endurance

Someone may walk well over a short distance but develop difficulties after several minutes.

Fatigue may lead to:

• Shorter steps
• Reduced foot clearance
• Greater asymmetry
• Slower walking

Where relevant, gait can be assessed after a period of walking rather than only during the first few steps.

This may be particularly useful for neurological or long-term conditions.

Turning

Turning requires balance and coordination.

Some people walk comfortably in a straight line but become less stable when changing direction.

Assessment may look at:

• Number of steps used to turn
• Speed
• Balance
• Confidence

Turning practice may then be included within rehabilitation.

Stairs

Digital gait analysis primarily focuses on walking, but difficulties identified during assessment may also affect stairs.

Stair use requires:

• Leg strength
• Balance
• Joint movement
• Single-leg control

Separate stair assessment may therefore be included where it is relevant to your goals.

Walking on uneven surfaces

A clinic walkway or treadmill provides a controlled environment.

Real life also involves:

• Grass
• Slopes
• Kerbs
• Uneven pavements
• Crowded environments

If these situations are difficult, rehabilitation should eventually include them where appropriate.

Good clinic gait does not automatically mean someone is confident outdoors.

Digital gait analysis and strength testing

Walking differences may result from weakness rather than the gait pattern itself.

For example, reduced calf strength may affect push-off, while hip weakness may influence stability.

A complete assessment may therefore combine digital gait analysis with:

• Strength testing
• Balance testing
• Mobility assessment

This helps avoid treating only what is visible on the screen.

Digital gait analysis and physiotherapy

Digital gait analysis is a tool used alongside physiotherapy.

It does not replace:

• Clinical assessment
• Strength testing
• Neurological assessment
• Pain assessment
• Functional testing

The technology provides additional measurements that can help guide rehabilitation.

The most important question is whether the information changes or improves the treatment plan.

Using video feedback

Video can help make walking patterns easier to understand.

You may be shown:

• Step differences
• Foot clearance
• Weight transfer
• Changes after an exercise or walking cue

Visual feedback can sometimes help you understand what is being practised during rehabilitation.

The goal is not to make you continually watch or consciously control every step.

Using digital data to monitor progress

One advantage of digital gait assessment is the ability to repeat measurements.

Progress may include:

• Faster walking
• Longer steps
• Improved symmetry
• Better foot clearance
• Greater endurance

These measurements can complement other improvements such as:

• Reduced pain
• Increased confidence
• Fewer falls
• Greater walking distance

Numbers should be interpreted alongside how well you function in everyday life.

Symmetry is not always the goal

Digital systems may highlight small differences between the left and right sides.

Perfect symmetry is not always necessary or achievable.

For example, differences may remain after:

• Major surgery
• Neurological injury
• Long-standing joint changes

The more important goals may be:

• Walking safely
• Walking further
• Reducing effort
• Improving confidence
• Increasing independence

Changing gait

When a gait change is recommended, it should have a clear purpose.

You may work on:

• Taking longer steps
• Improving foot clearance
• Loading one leg more confidently
• Increasing speed
• Improving push-off

Changes should be introduced gradually.

Trying to consciously control every part of walking at once can make movement unnecessarily difficult.

Strengthening alongside gait retraining

Gait retraining is often more effective when the physical capacity required for the new movement is also developed.

Exercises may include:

• Sit-to-stands
• Squats
• Step-ups
• Calf raises
• Hip strengthening
• Balance exercises

The programme can become more demanding as walking improves.

Walking practice

Walking itself is an important part of gait rehabilitation.

Practice may involve:

• Short repeated walks
• Faster walking
• Longer distances
• Different surfaces
• Turning
• Carrying objects
• Walking while performing another task

The type of practice depends on your condition and goals.

Returning to community walking

A rehabilitation goal may be to move beyond indoor walking towards:

• Shopping
• Public transport
• Outdoor walking
• Longer journeys
• Social activity

Digital gait findings can help guide treatment, but successful rehabilitation should ultimately improve real-world mobility.

Returning to exercise

If your goal is to return to exercise, rehabilitation may progress beyond basic walking.

Depending on the condition, this could include:

• Cycling
• Gym training
• Longer walks
• Hiking
• Jogging

More demanding activity should be introduced according to strength, symptoms and medical guidance.

Gait analysis before returning to running

Some people may progress from walking rehabilitation towards running.

Before running begins, assessment may consider:

• Walking symmetry
• Strength
• Balance
• Impact tolerance
• Injury healing

Running places significantly greater demand on the body than walking, so a normal walking pattern alone does not determine readiness.

When digital gait analysis may not be necessary

Not everyone with walking pain or difficulty requires digital analysis.

A standard physiotherapy assessment may provide enough information when:

• The problem is straightforward
• The cause of the walking change is clear
• Digital measurements would not alter treatment

Technology should be used when it adds useful information rather than simply because it is available.

When further medical assessment may be needed

Walking changes may occasionally indicate a condition requiring further medical assessment.

Seek appropriate medical advice if you develop:

• Sudden new weakness
• Sudden inability to walk normally
• New numbness
• Sudden loss of balance
• Severe pain following injury
• Inability to put weight through a limb
• New bladder or bowel-control problems
• Sudden neurological symptoms
• Rapidly worsening mobility

These symptoms should not be managed through gait retraining alone.

Assessment based on your goals

Digital gait analysis should relate to the activities that matter to you.

Your goals may include:

• Walking without a limp
• Walking further
• Improving balance
• Returning after surgery
• Improving mobility after a neurological condition
• Reducing falls
• Using stairs more confidently
• Returning to outdoor walking
• Returning to exercise
• Monitoring rehabilitation progress

The assessment and rehabilitation plan can be developed around these priorities.

How many appointments will I need?

Digital gait analysis itself may sometimes be completed during one assessment.

Further rehabilitation may be useful if the assessment identifies:

• Weakness
• Balance problems
• Reduced joint movement
• Walking asymmetry
• Reduced endurance

Follow-up gait analysis can sometimes be used to compare progress after a period of rehabilitation.

The number of appointments depends on the underlying problem and your goals.