12 Minute Shuttle Walk Test (12MSW)

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General Information
Background
Author/s or Creator/s
Dr J P Buckley
Dr R Quinlivan
Objectives
The objective of the 12 minute walk test is to observe a second wind and measure the maximum distance walked in 12 minutes to assess exercise function. The test has been modified from the standard 12 minute walk test for cardiac, respiratory and cerebrovascular disease. Modification includes recording of BORG RPP scale and heart rate each minute.
Category of Outcome Measure
Functional
 
Disease Type
  Used Validated
Muscle   X
Respiratory   X
Cardiac   X
Chronology of Development
The 12 MSWT has been modified from the Bruce protocol used for ischaemic heart disease.
Time Information
Time to Recall
At Assessment
Recall Period
Not Applicable
Time to Complete
12 minutes
Application
Mode of Assessment
Administered by trained evaluator
 
Age Group
Adolescents (12 to 15 Years)
Adults (16 Years and Over)
 
Age Related Limitations
Not Applicable
Languages
  Original Definitive Validated Translation Informal Translation
English UK X    
Conditions of Use and Contact Information
Conditions of Use
Free Access
 
Copyright Owner
Not Applicable
Contact Name
Dr Ros Quinlivan
Organisation Name
Robert Jones and Agnes Hunt NHS Orthopaedic Trust
Postal Address
Gobowen, Oswestry, SY6 7AB, United Kingdom
URL (Web Address)
www.rjah.nhs.uk
Email Address
Unknown
Phone
Unknown
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Functional Tasks - Stand/Walk/Run
Distance
Actual Distance Travelled
 
Surface Conditions
Hard Floor (e.g cement)
Smooth Texture
Even
 
Gradient
Flat
 
Direction
180 Degree Turn
Number of Turns Permitted
The patient should walk in a straight line the length of which is 20m. They should turn at each end. The number of turns will therefore be determined by the distance the person walks.
Feet
Shod
Comfortable walking shoes or trainers should be worn.
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Functional Tasks
Activity/Task - Lower Limb
Unknown
Level of Difficulty/Resistence
Self Determined
Time Allowed
Predetermined
12 minutes
Rest: Permitted/Required
Rest is Required During Test
Refer to Restrictions Below
Motion at Commencement and Time at Rest
Motionless
At the start of the test the patient should be sitting and have sat for five minutes. If necessary they should be taken by wheelchair to the start point.
Monitoring and Safety Measures
Pulse/Heart Rate
 
Monitoring and Safety: Additional Information
The patient is fitted with a wireless heart monitor.
Assistance Permitted
Canes and walkers are allowed if needed.
Restrictions
Patient must not let muscle pain exceed BORG level 4. This prevents contracture and together with the HR highlights a second wind at 7 minutes.
Instructions
The test can be conducted in a corridor with 20m shuttles (pre measured). The patient is asked to walk as fast as they can in 12 minutes, but they must not let muscle pain exceed BORG level 4.
Scoring Basis
Distance Travelled
 
Measurements
BORG RPP Scale
Heart Rate
Results
The total walking distance is the final outcome measure. Patients who walk > 800m are normal, 500-800m mild impairment, < 500m the patient is likely to have severe impairment in ADLs (activities of daily living). BORG RPP scale and heart rate are measured each minute.