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J Phys Ther Sci. 2016 Dec;28(12):3384-3389. doi: 10.1589/jpts.28.3384. Epub 2016 Dec 27.

Reliability and minimal detectable change of three functional tests: forward-lunge, step-up-over and sit-to-stand.

Author information

1
High Performance Sports Medicine Center of the High Council for Sports, Spain.
2
Physiotherapy Department, University of Alcalá, Spain.
3
Physiotherapy Department, University of Seville, Spain.
4
Sub-department of Prevention and Health Promotion, Council for Health, Spain.
5
Departamento de Medicina Física y Rehabilitación, Facultad de Medicina, Universidad Complutense de Madrid. Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Spain.
6
Health Sciences Department, University Alfonso, Spain.
7
Physiotherapy and Nursery Department, University of the Islas Baleares, Spain.
8
Nursery and Physiotherapy Department, University of the Balearic Islands, Spain.
9
Physiotherapy Department, University of Alcalá, Spain; Departamento de Medicina Física y Rehabilitación, Facultad de Enfermería, Fisioterapiay Podología, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Spain.

Abstract

[Purpose] To examine the intrasession and intersession reliability and the absolute reliability of three functional dynamic tests-forward-lunge, step-up-over and sit-to-stand tests-using computerized dynamic posturography. [Subjects and Methods] An intra-test and test-retest, repeated measure study was designed. Forty-five healthy subjects twice carried out the forward-lunge test, step-up-over test, and sit-to-stand test on two days, one week apart. The intrasession and intersession reliabilities as judged by the intraclass correlation coefficient (ICC) and the minimal detectable change of the three functional tests were calculated. [Results] Excellent to very good intrasession reliability of the forward-lunge test (ICC range of 0.9-0.8) was found. Very good to good intrasession reliability of the step-up-over test (ICC range of 0.9-0.5) was found and very good intrasession reliability of the sit-to-stand test (ICC range of 0.8-0.7) was found. The minimal detectable change at the 95% confidence level of most of the measures was lower than 30%. [Conclusion] The forward-lunge, step-up-over and sit-to-stand tests are reliable measurement tools.

KEYWORDS:

Activities of daily living; Postural balance; Reproducibility

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