Does Improved Ability to Achieve Single Leg Stance Lead to a More Efficient Gait Pattern in Adults With Acquired Brain Injury?
NCT ID: NCT04062149
Last Updated: 2020-10-14
Study Results
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Basic Information
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COMPLETED
NA
30 participants
INTERVENTIONAL
2019-12-24
2020-07-08
Brief Summary
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Detailed Description
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The gait cycle is described as having two major components, stance and swing phase. Stance has been determined as a pre-requisite for gait and a literature review found reduced stance ability correlates with gait abnormalities in CVA survivors. Consequently, given that a stronger and longer stance phase leads to a better swing phase and stance accounts for 60% of the gait cycle, stance can be considered the most important part of the gait cycle.
A person's ability to achieve SLS can be measured using the SLS test which assesses the time a person can stand on one leg. SLS test has excellent intra-rater reliability with an intraclass correlation coefficient (ICC) of 0.83 and excellent validity with a correlation of \<10 seconds being a high predictor of mobility impairments for people with ABI. There is currently no definitive minimal clinical important difference (MCID) for the SLS test - current literature varies from 5.5 - 16.0 seconds - but as this study will assess the quality of each person's SLS test as opposed to the time the results will still be clinically relevant.
Goal Attainment Scale (GAS) based on the single leg stance (SLS) test will be used to assess quality as it is responsive to change, person-specific and quantitative, able to assess treatment interventions at the impairment and functional level, and is suitable for assessing and evaluating patient outcomes in the ABI population and is frequently used within neuro-rehabilitation. GAS has excellent intra-rater reliability (ICC 0.88-0.93) and inter-rater reliability (ICC 0.95) with good concurrent and predictive and moderate to good content and construct validity (r=0.28-0.63) across the ABI population.
The ten metre walk test (10MWT) will be used to assess gait efficiency. The 10MWT requires a patient to walk ten metres at a comfortable speed and the time taken to cover that distance is measured. Studies have found a relationship between reduced SLS and reduced speed in the 10MWT with improvements in gait speed demonstrated following intervention based on SLS. It is also hypothesised that increased gait speed results in a more efficient and fluent gait pattern. Consequently, 10MWT will be used in this study to demonstrate gait velocity and efficiency improvements. 10MWT is also one of the most common, reliable, efficient and robust outcomes measures within neuro-rehabilitation. 10MWT demonstrates excellent test-retest reliability (ICC 0.95-0.99) and excellent intra-rater (ICC 0.87-0.98) and inter-rater reliability (ICC 0.99). 10MWT also has excellent criterion validity of r=0.76-0.78 and excellent construct validity (r=0.62-0.92) for various outcome measures within the ABI population with an MCID of 0.14-0.16m/s.
Consequently, ABI results in a reduced ability to achieve SLS which has a negative influence on gait speed and efficiency. Studies of predominantly small samples have demonstrated working on SLS can improve gait speed and efficiency in CVA survivors and to a lesser extent the traumatic brain injury (TBI) population meaning there is a gap in the research surrounding the ABI population as a whole including TBI. Therefore, this study will aim to answer the question 'does improved ability to achieve SLS lead to a more efficient gait pattern in adults with acquired brain injury?' The null hypothesis is 'improved ability to achieve SLS does not lead to a more efficient gait pattern in patients with ABI'. The experimental hypothesis is 'improved ability to achieve SLS does lead to a more efficient gait pattern in patients with ABI'. This is a two-tailed hypothesis due to limited evidence regarding the testing direction.
This will be an exploratory pre-test - post-test experimental design as it allows testing of two variables (dependent and independent) to identify the cause and effect of specific events. This research design also helps determine if the subjects' performance is better, worse or unchanged and the inclusion of a control group will provide more convincing evidence of success or failure of treatment. The control group will receive an individualised physiotherapy treatment approach, but it will not work specifically on SLS i.e. they will receive their normal physiotherapy treatment.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
SINGLE
Study Groups
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Control Group
The control group will be the group where the participants receive only their normal physiotherapy treatment.
Usual physiotherapy
Individualised physiotherapy treatment approach, as per standard protocol, but it will not work specifically on SLS. Will be based on the neuro-developmental technique.
Experimental Group
The experimental group will be the group where participants receive physiotherapy aimed at improving their ability to stand on their weaker leg alongside their normal physiotherapy treatment.
single leg stance treatment
SLS treatment following the neurodevelopmental treatment (NDT). SLS is the ability of one limb to support the body's weight in a standing position. In gait it is the foot being in contact with the ground whilst the body passes over it and this stance phase of gait accounts for 60% of the gait cycle. The treatment approach of NDT has been chosen as this is the most common physiotherapy treatment option in the UK and is the most common option in the studies above. NDT is a problem-solving approach to the assessment and treatment of individuals with disturbances of function, movement and postural control due to a lesion of the central nervous system and provides an outline of the treatment required to achieve SLS which will form the basis of the intervention of this study.
Interventions
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single leg stance treatment
SLS treatment following the neurodevelopmental treatment (NDT). SLS is the ability of one limb to support the body's weight in a standing position. In gait it is the foot being in contact with the ground whilst the body passes over it and this stance phase of gait accounts for 60% of the gait cycle. The treatment approach of NDT has been chosen as this is the most common physiotherapy treatment option in the UK and is the most common option in the studies above. NDT is a problem-solving approach to the assessment and treatment of individuals with disturbances of function, movement and postural control due to a lesion of the central nervous system and provides an outline of the treatment required to achieve SLS which will form the basis of the intervention of this study.
Usual physiotherapy
Individualised physiotherapy treatment approach, as per standard protocol, but it will not work specifically on SLS. Will be based on the neuro-developmental technique.
Eligibility Criteria
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Inclusion Criteria
* Adults aged eighteen years or over
* Patients can be male or female
* Mobile \>10m with or without assistance/walking aid
* Willing and able to provide written informed consent and scores \>5 on orientation on FIM+FAM (FIM+FAM is an outcome measure used in all neuro-rehabilitation units in England, consequently, these data are already captured by the unit)
* Medically stable - able to fully take part in regular therapy - as determined by the unit's medical team
Exclusion Criteria
* Below eighteen years of age
* Mobile \<10m or not mobile
* Unable or unwilling to give informed consent or scores \<5 on orientation on FIM+FAM Medically unwell
18 Years
ALL
No
Sponsors
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University of Salford
OTHER
Manchester University NHS Foundation Trust
OTHER_GOV
Responsible Party
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Locations
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Trafford General Hospital
Manchester, , United Kingdom
Countries
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References
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Other Identifiers
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B00678
Identifier Type: -
Identifier Source: org_study_id
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