| Name of the Instrument/Tool | Lower Limb Functional Index (LLFI) |
| First Description |
Gabel CP, Melloh M, Burkett B, Michener LA. Lower limb functional index: development and clinimetric properties. Phys Ther. 2012 Jan;92(1):98-110. doi: 10.2522/ptj.20100199. PMID: 22052947. |
| Year | 2012 |
| Domains | |
| Concept of constructs | Functional status |
| Population/Disease | Generic |
| Originally developed for | Lower Limb |
| Other rheumatic diseases where can be applied (only if validated) |
--- |
| Additional population with no rheumatic diseases |
No |
| Language: Originally published in | English |
| Available in Language | Chinese, Dutch, French, Polish, Spanish, Turkish, Korean, Persian |
| REFERENCE IDENTIFICATION | |
| Author/s | Gabel CP, Melloh M, Burkett B, Michener LA. |
| Title | Lower limb functional index: development and clinimetric properties. |
| Journal | Phys Ther. |
| Year | 2012 |
| Vol | 92 |
| Num | 1 |
| Pages | 98-110 |
| Country | Australia |
| Language | English |
| Other references of interest | |
| Link | https://pubmed.ncbi.nlm.nih.gov/22052947/ |
| Brief Description |
Lower limb functional index: development and clinimetric properties. |
| Link | https://pubmed.ncbi.nlm.nih.gov/27574686/ |
| Brief Description |
Demonstration of the test-retest reliability and sensitivity of the Lower Limb Functional Index-10 as a measure of functional recovery post burn injury: a cross-sectional repeated measures study design. |
| Instrument/Tool Translations References | |
| Link | https://pubmed.ncbi.nlm.nih.gov/24885123/ |
| Brief Description |
Cross cultural adaptation and validation of a Spanish version of the Lower Limb Functional Index. |
| Link | https://pubmed.ncbi.nlm.nih.gov/29764442/ |
| Brief Description |
Cross-cultural adaptation, validity, and reliability of the Persian version of the spine functional index. |
| DEVELOPER CONTACT INFORMATION | |
| Correspondence to | Philip Charles Gabel |
| cp.gabel@bigpond.com | |
| Address | Access Physiotherapy PO Box 760 Coolum Beach Qld Australia |
| Website | --- |
| Available | --- |
| Links | --- |
| DESCRIPTION OF THE INSTRUMENT | |
| Type Of Measure | Questionnaire |
| Brief Description |
The LLFI is a single page questionnaire containing 25 items of the PRO measure relevant to the status of the patients in last 2–3 days. |
| Number of Items | 25 |
| Range | 0-100 |
| Responses options/scale |
Yes ‘‘Yes’’/‘‘Partly’’/‘‘No’’ |
| Developed for | --- |
| PRACTICAL APPLICATION | |
| Method of administration | Self-administered |
| Recommendations to score |
It has the response options of ‘‘Yes’’/‘‘Partly’’/‘‘No’’ and scored by assigning 1 point for ‘‘Yes’’, 0.5 point for ‘‘Partly’’ and 0 point for ‘‘No’’ for each individual response. The allocated points are added and multiplied by four for a total score of functional limitation. This value is then subtracted from 100 to provide a score on a percentage scale of pre-injury or normal functional status. |
| Score Interpretation | ‘‘0’’ (maximum limitation) to ‘‘100’’ (no limitation or pre-injury status) |
| Cut-off points | --- |
| Cut-off points applied to | --- |
| Smallest detectable change if described | 6.67% or 1.67 LLFI points |
| Smallest detectable change applied to | --- |
| Completion time by the patient | 131+-23 secs minutes |
| Scoring time by the assessor | 17 +- 5 secs minutes |
| Training to score | Not necessary |
| Strengths | Easy to use |
| Limitations | --- |
| OTHER COMMENTS | |
| Other Comments |
There are also the short forms 10 item versions published for the Lower Limb but only for wounds. Their information is identical to the longer form except the MDC or error is slightly larger. A integrated software CDSS using LLFI has been developed and validated. The final tool showed ICC of 0.96 and MDC90~ 5%. The Flesch Kincaid readability is Gr 7 and Efficacy ~ 65%. |