Functional Gait Assessment
Original Editor - Laura Ritchie
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Objective
[edit | edit source]
The Functional Gait Assessment (FGA) is a modification of the Dynamic Gait Index (DGI) that uses higher-level tasks to increase the applicability of the test to people with vestibular disorders and to eliminate the ceiling effect of the original test. Three items were added to the DGI because these were noted to be difficult in people with vestibular disorders. [1]
The FGA is used to assess postural stability during various walking tasks. [2]
Intended Population[edit | edit source]
Adults with Parkinson’s Disease, stroke or vestibular disorders [2]
Method of Use [2][edit | edit source]
Time to Administer: 5-10 minutes
Number of Test Items: 10
Scoring: Each item is scored on an ordinal scale from 0 - 3, with
- 0 = severe impairment
- 1 = moderate impairment
- 2 = mild impairment
- 3 = normal ambulation
Thus, the highest score is 30/30.
Requirements[edit | edit source]
- A Marked 6-m (20ft) walkways that is marked 20.48cm (12in) in width.
- Stopwatch
Sections and Instructions of the FGA[edit | edit source]
It is important you keep the instruction the same as described by the test and also the only thing you say as not to influence performance.
1. Gait on a Level Surface[edit | edit source]
Instruction[edit | edit source]
Walk at your normal speed from here to the next mark.
Grading[edit | edit source]
3 Normal, walks 6m in less than 5.5 seconds with no adis, in good speed and no evidence of imbalance. Also deviates no more than 15.24cm (6in) outside of the walkway width.
2 Mild impairment, walks 6m (20 ft) in less than 7 seconds but greater than 5.5 seconds, uses assistive device, slower speed, mild gait deviations, or deviates 15.24–25.4 cm (6–10 in) outside of the walkway width.
1 Moderate impairment, walks 6 m (20 ft), slow speed, abnormal gait pattern, evidence for imbalance, or deviates 25.4-38.1 cm (10–15 in) outside of the 30.48-cm (12-in) walkway width. Requires more than 7 seconds to ambulate 6 m (20 ft).
0 Severe impairment, cannot walk 6 m (20 ft) without assistance, severe gait deviations or imbalance, deviates greater than 38.1 cm (15 in) outside of the 30.48-cm (12-in) walkway width or reaches and touches the wall.
Evidence[edit | edit source]
| [3] |
Reliability[edit | edit source]
Intrarater reliability of the total FGA: ICC = 0.83 [1]
Interrater reliability of the total FGA: ICC = 0.84 [1]
Internal Consistency: Cronbach alpha value 0.79 across both trials [1]
Validity[edit | edit source]
Concurrent Validity - FGA scores were correlated with the following outcome measure scores; [1]
- ABC Scale: r = -.70
- DHI: r = -.064
- PDS: r = -.70
- Number of falls: r = -.66
- TUG: r = -.50
- DGI: r = 0.80
Responsiveness[edit | edit source]
Miscellaneous[edit | edit source]
Dynamic Gait Index, the 4-item Dynamic Gait Index, and the Functional Gait Assessment show sufficient validity, responsiveness, and reliability for assessment of walking function in patients with stroke undergoing rehabilitation, but the Functional Gait Assessment is recommended for its psychometric properties[4].
Resources[edit | edit source]
http://www.rehabmeasures.org/Lists/RehabMeasures/DispForm.aspx?ID=893
Links[edit | edit source]
Recent Related Research (from Pubmed)[edit | edit source]
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References[edit | edit source]
- ↑ 1.0 1.1 1.2 1.3 1.4 Wrisley DM, Marchetti GF, Kuharsky DK, Whitney SL. Reliability, Internal Consistency and Validity of Data Obtained with the Functional Gait Assessment. Physical Therapy. 2004; 84(10): 906-918.
- ↑ 2.0 2.1 2.2 http://www.rehabmeasures.org/Lists/RehabMeasures/DispForm.aspx?ID=893
- ↑ Julia Krahm. Functional Gait Assessment. Available from: http://www.youtube.com/watch?v=vxzB3ez3y14[last accessed 10/10/14]
- ↑ Lin JH, Hsu MJ, Hsu HW, Wu HC, Hsieh CL. Psychometric Comparisons of 3 Functional Ambulation Measures for Patients With Stroke. Stroke. 2010 Jul 29; online article ahead of print
