Reliability of measurements of lumbar spine sagittal mobility obtained with the flexible curve

J. W. Youdas, Vera Jean Suman, T. R. Garrett

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Presently, there is no available scientific information that examines the interchangeability of tangent and trigonometric methods used to calculate measurements of sagittal mobility of the lumbar spine obtained with a flexible curve. Repeated measurements of the lumbar curvature were made with a flexible curve by using a standardized protocol on 10 healthy volunteers under three conditions: 1) standing, 2) sitting with maximum trunk forward bending, and 3) lying prone with maximum backward bending. Measurements were made by a team of two physical therapists working together; one therapist instructed the subject, and the other therapist performed the measurement. Agreement between the tangent and trigonometric methods was assessed graphically by plotting the difference between methods against the mean value of each pair of readings for each of the three conditions. Measurements differed by 4 to 7° for each of the three positions of the lumbar spine. We believe such error is clinically acceptable and should not affect the clinical decision made on the basis of the measurement.

Original languageEnglish (US)
Pages (from-to)13-20
Number of pages8
JournalJournal of Orthopaedic and Sports Physical Therapy
Volume21
Issue number1
StatePublished - 1995

Fingerprint

Spine
Physical Therapists
Reading
Healthy Volunteers

ASJC Scopus subject areas

  • Health Professions(all)
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Reliability of measurements of lumbar spine sagittal mobility obtained with the flexible curve. / Youdas, J. W.; Suman, Vera Jean; Garrett, T. R.

In: Journal of Orthopaedic and Sports Physical Therapy, Vol. 21, No. 1, 1995, p. 13-20.

Research output: Contribution to journalArticle

@article{9a55fd133b1943a99fd537a7f3031889,
title = "Reliability of measurements of lumbar spine sagittal mobility obtained with the flexible curve",
abstract = "Presently, there is no available scientific information that examines the interchangeability of tangent and trigonometric methods used to calculate measurements of sagittal mobility of the lumbar spine obtained with a flexible curve. Repeated measurements of the lumbar curvature were made with a flexible curve by using a standardized protocol on 10 healthy volunteers under three conditions: 1) standing, 2) sitting with maximum trunk forward bending, and 3) lying prone with maximum backward bending. Measurements were made by a team of two physical therapists working together; one therapist instructed the subject, and the other therapist performed the measurement. Agreement between the tangent and trigonometric methods was assessed graphically by plotting the difference between methods against the mean value of each pair of readings for each of the three conditions. Measurements differed by 4 to 7° for each of the three positions of the lumbar spine. We believe such error is clinically acceptable and should not affect the clinical decision made on the basis of the measurement.",
author = "Youdas, {J. W.} and Suman, {Vera Jean} and Garrett, {T. R.}",
year = "1995",
language = "English (US)",
volume = "21",
pages = "13--20",
journal = "Journal of Orthopaedic and Sports Physical Therapy",
issn = "0190-6011",
publisher = "JOSPT",
number = "1",

}

TY - JOUR

T1 - Reliability of measurements of lumbar spine sagittal mobility obtained with the flexible curve

AU - Youdas, J. W.

AU - Suman, Vera Jean

AU - Garrett, T. R.

PY - 1995

Y1 - 1995

N2 - Presently, there is no available scientific information that examines the interchangeability of tangent and trigonometric methods used to calculate measurements of sagittal mobility of the lumbar spine obtained with a flexible curve. Repeated measurements of the lumbar curvature were made with a flexible curve by using a standardized protocol on 10 healthy volunteers under three conditions: 1) standing, 2) sitting with maximum trunk forward bending, and 3) lying prone with maximum backward bending. Measurements were made by a team of two physical therapists working together; one therapist instructed the subject, and the other therapist performed the measurement. Agreement between the tangent and trigonometric methods was assessed graphically by plotting the difference between methods against the mean value of each pair of readings for each of the three conditions. Measurements differed by 4 to 7° for each of the three positions of the lumbar spine. We believe such error is clinically acceptable and should not affect the clinical decision made on the basis of the measurement.

AB - Presently, there is no available scientific information that examines the interchangeability of tangent and trigonometric methods used to calculate measurements of sagittal mobility of the lumbar spine obtained with a flexible curve. Repeated measurements of the lumbar curvature were made with a flexible curve by using a standardized protocol on 10 healthy volunteers under three conditions: 1) standing, 2) sitting with maximum trunk forward bending, and 3) lying prone with maximum backward bending. Measurements were made by a team of two physical therapists working together; one therapist instructed the subject, and the other therapist performed the measurement. Agreement between the tangent and trigonometric methods was assessed graphically by plotting the difference between methods against the mean value of each pair of readings for each of the three conditions. Measurements differed by 4 to 7° for each of the three positions of the lumbar spine. We believe such error is clinically acceptable and should not affect the clinical decision made on the basis of the measurement.

UR - http://www.scopus.com/inward/record.url?scp=0028817731&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028817731&partnerID=8YFLogxK

M3 - Article

C2 - 7889027

AN - SCOPUS:0028817731

VL - 21

SP - 13

EP - 20

JO - Journal of Orthopaedic and Sports Physical Therapy

JF - Journal of Orthopaedic and Sports Physical Therapy

SN - 0190-6011

IS - 1

ER -