Relationship between clinical and instrumental balance assessments in chronic post-stroke hemiparesis subjects

Zimi Sawacha, Elena Carraro, Paola Contessa, Annamaria Guiotto, Stefano Masiero, Claudio Cobelli

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Background: Stroke is often associated with balance deficits that increase the risk of falls and may lead to severe mobility disfunctions or death. The purpose of this study is to establish the relation between the outcome of instrumented posturography and of the most commonly used clinical balance tests, and investigate their role for obtaining reliable feedback on stroke patients' balance impairment. Methods. Romberg test was performed on 20 subjects, 10 hemiplegic post-stroke subjects (SS, 69.4 ± 8.2 years old) and 10 control subjects (CS, 61.6 ± 8.6 years old), with 1 Bertec force plate. The following parameters were estimated from the centre of pressure (CoP) trajectory, which can be used to define subjects' performance during the balance task: sway area; ellipse (containing 95% of the data); mean CoP path and velocity in the anterior-posterior and medio-lateral directions. The following clinical scales and tests were administered to the subjects: Tinetti Balance test (TB); Berg Balance test (BBT); Time up and go test (TUG), Fugl-Meyer (lower limbs) (FM), Motricity Index (lower limbs), Trunk Control Test, Functional Independence Measure. Comparison between SS and CS subjects was performed by using the Student t-test. The Pearson Correlation coefficient was computed between instrumental and clinical parameters. Results: Mean ± standard deviation for the balance scales scores of SS were: 12.5 ± 3.6 for TB, 42.9 ± 13.1 for BBT, 24 s and 75 cent ± 25 s and 70 cent for TUG. Correlation was found among some CoP parameters and both BBT and TUG in the eyes open and closed conditions (0.9 ≤ R ≤ 0.8). Sway area correlated only with TUG. Statistically significant differences were found between SS and CS in all CoP parameters in eyes open condition (p <0.04); whereas in eyes closed condition only CoP path and velocity (p <0.02) differed significantly. Conclusions: Correlation was found only among some of the clinical and instrumental balance outcomes, indicating that they might measure different aspects of balance control. Consistently with previous findings in healthy and pathological subjects, our results suggest that instrumented posturography should be recommended for use in clinical practice in addition to clinical functional tests.

Original languageEnglish
Article number95
JournalJournal of NeuroEngineering and Rehabilitation
Volume10
Issue number1
DOIs
Publication statusPublished - 2013

Fingerprint

Paresis
Stroke
Pressure
Lower Extremity
Healthy Volunteers
Students

ASJC Scopus subject areas

  • Rehabilitation
  • Health Informatics
  • Medicine(all)

Cite this

Relationship between clinical and instrumental balance assessments in chronic post-stroke hemiparesis subjects. / Sawacha, Zimi; Carraro, Elena; Contessa, Paola; Guiotto, Annamaria; Masiero, Stefano; Cobelli, Claudio.

In: Journal of NeuroEngineering and Rehabilitation, Vol. 10, No. 1, 95, 2013.

Research output: Contribution to journalArticle

Sawacha, Zimi ; Carraro, Elena ; Contessa, Paola ; Guiotto, Annamaria ; Masiero, Stefano ; Cobelli, Claudio. / Relationship between clinical and instrumental balance assessments in chronic post-stroke hemiparesis subjects. In: Journal of NeuroEngineering and Rehabilitation. 2013 ; Vol. 10, No. 1.
@article{bb2a7743bed04f1eb4dcf12d2e5232a6,
title = "Relationship between clinical and instrumental balance assessments in chronic post-stroke hemiparesis subjects",
abstract = "Background: Stroke is often associated with balance deficits that increase the risk of falls and may lead to severe mobility disfunctions or death. The purpose of this study is to establish the relation between the outcome of instrumented posturography and of the most commonly used clinical balance tests, and investigate their role for obtaining reliable feedback on stroke patients' balance impairment. Methods. Romberg test was performed on 20 subjects, 10 hemiplegic post-stroke subjects (SS, 69.4 ± 8.2 years old) and 10 control subjects (CS, 61.6 ± 8.6 years old), with 1 Bertec force plate. The following parameters were estimated from the centre of pressure (CoP) trajectory, which can be used to define subjects' performance during the balance task: sway area; ellipse (containing 95{\%} of the data); mean CoP path and velocity in the anterior-posterior and medio-lateral directions. The following clinical scales and tests were administered to the subjects: Tinetti Balance test (TB); Berg Balance test (BBT); Time up and go test (TUG), Fugl-Meyer (lower limbs) (FM), Motricity Index (lower limbs), Trunk Control Test, Functional Independence Measure. Comparison between SS and CS subjects was performed by using the Student t-test. The Pearson Correlation coefficient was computed between instrumental and clinical parameters. Results: Mean ± standard deviation for the balance scales scores of SS were: 12.5 ± 3.6 for TB, 42.9 ± 13.1 for BBT, 24 s and 75 cent ± 25 s and 70 cent for TUG. Correlation was found among some CoP parameters and both BBT and TUG in the eyes open and closed conditions (0.9 ≤ R ≤ 0.8). Sway area correlated only with TUG. Statistically significant differences were found between SS and CS in all CoP parameters in eyes open condition (p <0.04); whereas in eyes closed condition only CoP path and velocity (p <0.02) differed significantly. Conclusions: Correlation was found only among some of the clinical and instrumental balance outcomes, indicating that they might measure different aspects of balance control. Consistently with previous findings in healthy and pathological subjects, our results suggest that instrumented posturography should be recommended for use in clinical practice in addition to clinical functional tests.",
author = "Zimi Sawacha and Elena Carraro and Paola Contessa and Annamaria Guiotto and Stefano Masiero and Claudio Cobelli",
year = "2013",
doi = "10.1186/1743-0003-10-95",
language = "English",
volume = "10",
journal = "Journal of NeuroEngineering and Rehabilitation",
issn = "1743-0003",
publisher = "BioMed Central",
number = "1",

}

TY - JOUR

T1 - Relationship between clinical and instrumental balance assessments in chronic post-stroke hemiparesis subjects

AU - Sawacha, Zimi

AU - Carraro, Elena

AU - Contessa, Paola

AU - Guiotto, Annamaria

AU - Masiero, Stefano

AU - Cobelli, Claudio

PY - 2013

Y1 - 2013

N2 - Background: Stroke is often associated with balance deficits that increase the risk of falls and may lead to severe mobility disfunctions or death. The purpose of this study is to establish the relation between the outcome of instrumented posturography and of the most commonly used clinical balance tests, and investigate their role for obtaining reliable feedback on stroke patients' balance impairment. Methods. Romberg test was performed on 20 subjects, 10 hemiplegic post-stroke subjects (SS, 69.4 ± 8.2 years old) and 10 control subjects (CS, 61.6 ± 8.6 years old), with 1 Bertec force plate. The following parameters were estimated from the centre of pressure (CoP) trajectory, which can be used to define subjects' performance during the balance task: sway area; ellipse (containing 95% of the data); mean CoP path and velocity in the anterior-posterior and medio-lateral directions. The following clinical scales and tests were administered to the subjects: Tinetti Balance test (TB); Berg Balance test (BBT); Time up and go test (TUG), Fugl-Meyer (lower limbs) (FM), Motricity Index (lower limbs), Trunk Control Test, Functional Independence Measure. Comparison between SS and CS subjects was performed by using the Student t-test. The Pearson Correlation coefficient was computed between instrumental and clinical parameters. Results: Mean ± standard deviation for the balance scales scores of SS were: 12.5 ± 3.6 for TB, 42.9 ± 13.1 for BBT, 24 s and 75 cent ± 25 s and 70 cent for TUG. Correlation was found among some CoP parameters and both BBT and TUG in the eyes open and closed conditions (0.9 ≤ R ≤ 0.8). Sway area correlated only with TUG. Statistically significant differences were found between SS and CS in all CoP parameters in eyes open condition (p <0.04); whereas in eyes closed condition only CoP path and velocity (p <0.02) differed significantly. Conclusions: Correlation was found only among some of the clinical and instrumental balance outcomes, indicating that they might measure different aspects of balance control. Consistently with previous findings in healthy and pathological subjects, our results suggest that instrumented posturography should be recommended for use in clinical practice in addition to clinical functional tests.

AB - Background: Stroke is often associated with balance deficits that increase the risk of falls and may lead to severe mobility disfunctions or death. The purpose of this study is to establish the relation between the outcome of instrumented posturography and of the most commonly used clinical balance tests, and investigate their role for obtaining reliable feedback on stroke patients' balance impairment. Methods. Romberg test was performed on 20 subjects, 10 hemiplegic post-stroke subjects (SS, 69.4 ± 8.2 years old) and 10 control subjects (CS, 61.6 ± 8.6 years old), with 1 Bertec force plate. The following parameters were estimated from the centre of pressure (CoP) trajectory, which can be used to define subjects' performance during the balance task: sway area; ellipse (containing 95% of the data); mean CoP path and velocity in the anterior-posterior and medio-lateral directions. The following clinical scales and tests were administered to the subjects: Tinetti Balance test (TB); Berg Balance test (BBT); Time up and go test (TUG), Fugl-Meyer (lower limbs) (FM), Motricity Index (lower limbs), Trunk Control Test, Functional Independence Measure. Comparison between SS and CS subjects was performed by using the Student t-test. The Pearson Correlation coefficient was computed between instrumental and clinical parameters. Results: Mean ± standard deviation for the balance scales scores of SS were: 12.5 ± 3.6 for TB, 42.9 ± 13.1 for BBT, 24 s and 75 cent ± 25 s and 70 cent for TUG. Correlation was found among some CoP parameters and both BBT and TUG in the eyes open and closed conditions (0.9 ≤ R ≤ 0.8). Sway area correlated only with TUG. Statistically significant differences were found between SS and CS in all CoP parameters in eyes open condition (p <0.04); whereas in eyes closed condition only CoP path and velocity (p <0.02) differed significantly. Conclusions: Correlation was found only among some of the clinical and instrumental balance outcomes, indicating that they might measure different aspects of balance control. Consistently with previous findings in healthy and pathological subjects, our results suggest that instrumented posturography should be recommended for use in clinical practice in addition to clinical functional tests.

UR - http://www.scopus.com/inward/record.url?scp=84881306819&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84881306819&partnerID=8YFLogxK

U2 - 10.1186/1743-0003-10-95

DO - 10.1186/1743-0003-10-95

M3 - Article

VL - 10

JO - Journal of NeuroEngineering and Rehabilitation

JF - Journal of NeuroEngineering and Rehabilitation

SN - 1743-0003

IS - 1

M1 - 95

ER -