Reliability and validity of the Four Square Step Test in patients with hip osteoarthritis before and after total hip replacement.
Physiotherapy
; 105(2): 244-253, 2019 06.
Article
in En
| MEDLINE
| ID: mdl-30630621
ABSTRACT
OBJECTIVE:
To determine the validity and inter- and intra-rater reliability of the Four Square Step Test (FSST) in assessing gait performance, balance and physical function for patients with hip osteoarthritis before and after total hip replacement (THR).DESIGN:
Observational, repeated measures.SETTING:
A specialist orthopaedic hospital.PARTICIPANTS:
Fifty-eight participants with moderate to severe hip osteoarthritis scheduled to receive primary hip replacement within 4 months from recruitment. MAIN OUTCOMEMEASURE:
Time to complete the FSST, time and steps to complete the Figure of 8 Walk Test (F8W) and Berg Balance Scale score (BBS).RESULTS:
The Bland and Altman limits of agreement for intra-rater measurements of the FSST were -3.2s to 3.5seconds before THR and -1.5 to 2.0seconds after THR. Limits of agreement for two different raters were -2.2 to 3.4seconds, all with small mean differences indicating little bias between raters or replications. Concurrent validity was assessed, and the FSST correlated highly with the F8W (r=0.7, P<0.001) and moderately with the BBS (r=0.6, P<0.001). Only one participant was rated as being at moderate risk of falls on the BBS, with the other participants scoring low; only one participant failed to complete the F8W. This is in contrast to the FSST, which 21 people failed to complete pre-operatively.CONCLUSIONS:
The FSST is a valid and reliable measure of multi-directional stepping speed and balance, giving a more informative measure of gait performance than the F8W and BBS, and is feasible for use in a clinical population of patients both before and after THR.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Osteoarthritis, Hip
/
Arthroplasty, Replacement, Hip
/
Walk Test
Type of study:
Observational_studies
Limits:
Aged
/
Aged80
/
Female
/
Humans
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Male
/
Middle aged
Language:
En
Journal:
Physiotherapy
Year:
2019
Document type:
Article
Publication country:
ENGLAND
/
ESCOCIA
/
GB
/
GREAT BRITAIN
/
INGLATERRA
/
REINO UNIDO
/
SCOTLAND
/
UK
/
UNITED KINGDOM