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Measurement properties of a test battery to assess postural orientation during functional tasks in patients undergoing anterior cruciate ligament injury rehabilitation

Nae, Jenny; Creaby, Mark W.; Nilsson, Gustav; Crossley, Kay M. and Ageberg, Eva LU (2017) In Journal of Orthopaedic and Sports Physical Therapy 47(11). p.863-873
Abstract

STUDY DESIGN: Cross-sectional study. BACKGROUND: Visual rating of postural orientation during functional tasks may be a valuable tool to track rehabilitation progress following anterior cruciate ligament (ACL) injury. A valid test battery assessing postural orientation as a separate construct is lacking. OBJECTIVES: To evaluate measurement properties of a test battery to assess postural orientation in patients with ACL injury. METHODS: The content validity of functional tasks was assessed by expert focus group discussions. Fifty-one patients (45% women) with ACL injury performed 9 functional tasks of varying difficulty. Interpretability, internal consistency, interrater reliability, and measurement error were assessed for... (More)

STUDY DESIGN: Cross-sectional study. BACKGROUND: Visual rating of postural orientation during functional tasks may be a valuable tool to track rehabilitation progress following anterior cruciate ligament (ACL) injury. A valid test battery assessing postural orientation as a separate construct is lacking. OBJECTIVES: To evaluate measurement properties of a test battery to assess postural orientation in patients with ACL injury. METHODS: The content validity of functional tasks was assessed by expert focus group discussions. Fifty-one patients (45% women) with ACL injury performed 9 functional tasks of varying difficulty. Interpretability, internal consistency, interrater reliability, and measurement error were assessed for segment-specific postural orientation errors (POEs), within-task POEs, and total POE score. Postural orientation errors were scored on video on an ordinal scale from 0 (no POEs) to 3 (major POEs). RESULTS: Stair ascent, deep squat, and crossover hop for distance were excluded in focus group discussions. Postural orientation errors in some tasks were excluded due to floor effects. The minisquat and drop jump were excluded due to poor internal consistency (α≤.184). Interrater reliability values for segment-specific POEs and within-task POEs yielded fair to almost perfect agreement (κ = 0.429-0.875) and almost perfect agreement for total POE score (intraclass correlation coefficient = 0.842), without systematic differences between raters. The smallest detectable changes were 0.7 and 5 points for groups and individuals, respectively. CONCLUSION: The final test battery (single-leg mini-squat, stair descent, forward lunge, singleleg hop for distance) of 4 POEs (foot pronation, medial knee-to-foot position, hip joint POEs, and trunk segment POEs) demonstrated good measurement properties in people with ACL injury.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Lower extremity, Outcome assessment (health care), Performance-based measures, Postural control, Reproducibility of results
in
Journal of Orthopaedic and Sports Physical Therapy
volume
47
issue
11
pages
11 pages
publisher
J O S P T, Alliance Group Communications
external identifiers
  • scopus:85026490640
ISSN
0190-6011
DOI
10.2519/jospt.2017.7270
language
English
LU publication?
yes
id
881f8efd-c486-4e67-8937-22ca0a70e778
date added to LUP
2017-11-22 14:04:46
date last changed
2018-01-07 12:26:30
@article{881f8efd-c486-4e67-8937-22ca0a70e778,
  abstract     = {<p>STUDY DESIGN: Cross-sectional study. BACKGROUND: Visual rating of postural orientation during functional tasks may be a valuable tool to track rehabilitation progress following anterior cruciate ligament (ACL) injury. A valid test battery assessing postural orientation as a separate construct is lacking. OBJECTIVES: To evaluate measurement properties of a test battery to assess postural orientation in patients with ACL injury. METHODS: The content validity of functional tasks was assessed by expert focus group discussions. Fifty-one patients (45% women) with ACL injury performed 9 functional tasks of varying difficulty. Interpretability, internal consistency, interrater reliability, and measurement error were assessed for segment-specific postural orientation errors (POEs), within-task POEs, and total POE score. Postural orientation errors were scored on video on an ordinal scale from 0 (no POEs) to 3 (major POEs). RESULTS: Stair ascent, deep squat, and crossover hop for distance were excluded in focus group discussions. Postural orientation errors in some tasks were excluded due to floor effects. The minisquat and drop jump were excluded due to poor internal consistency (α≤.184). Interrater reliability values for segment-specific POEs and within-task POEs yielded fair to almost perfect agreement (κ = 0.429-0.875) and almost perfect agreement for total POE score (intraclass correlation coefficient = 0.842), without systematic differences between raters. The smallest detectable changes were 0.7 and 5 points for groups and individuals, respectively. CONCLUSION: The final test battery (single-leg mini-squat, stair descent, forward lunge, singleleg hop for distance) of 4 POEs (foot pronation, medial knee-to-foot position, hip joint POEs, and trunk segment POEs) demonstrated good measurement properties in people with ACL injury.</p>},
  author       = {Nae, Jenny and Creaby, Mark W. and Nilsson, Gustav and Crossley, Kay M. and Ageberg, Eva},
  issn         = {0190-6011},
  keyword      = {Lower extremity,Outcome assessment (health care),Performance-based measures,Postural control,Reproducibility of results},
  language     = {eng},
  month        = {11},
  number       = {11},
  pages        = {863--873},
  publisher    = {J O S P T, Alliance Group Communications},
  series       = {Journal of Orthopaedic and Sports Physical Therapy},
  title        = {Measurement properties of a test battery to assess postural orientation during functional tasks in patients undergoing anterior cruciate ligament injury rehabilitation},
  url          = {http://dx.doi.org/10.2519/jospt.2017.7270},
  volume       = {47},
  year         = {2017},
}