Test-Retest Reliability and Concurrent Validity of the 3 m Backward Walk Test under Single and Dual-Task Conditions in Women with Fibromyalgia

Juan Luis Leon-Llamas; Santos Villafaina; Alvaro Murillo-Garcia; Francisco Javier Domínguez-Muñoz; Narcis Gusi

doi:10.3390/jcm12010212

Test-Retest Reliability and Concurrent Validity of the 3 m Backward Walk Test under Single and Dual-Task Conditions in Women with Fibromyalgia

J Clin Med. 2022 Dec 27;12(1):212. doi: 10.3390/jcm12010212.

Authors

Juan Luis Leon-Llamas¹, Santos Villafaina^{1

2}, Alvaro Murillo-Garcia¹, Francisco Javier Domínguez-Muñoz¹, Narcis Gusi^{1

3}

Affiliations

¹ Grupo de Investigación Actividad Física y Calidad de Vida (AFYCAV), Facultad de Ciencias del Deporte, Universidad de Extremadura, 10003 Caceres, Spain.
² Departamento de Desporto e Saúde, Escola de Saúde e Desenvolvimento Humano, Universidade de Évora, 7004-516 Évora, Portugal.
³ International Institute for Innovation in Aging, University of Extremadura, 10003 Caceres, Spain.

Abstract

Previous studies have reported good test-retest reliability for the 3 m backward test (3MBWT) in different populations. However, reliability of the 3MBWT has not been studied in fibromyalgia (FM) under single and dual-task conditions; Methods: A total of 21 women with FM participated in this study. Participants completed the Revised Fibromyalgia Impact Questionnaire and two physical fitness tests: the 3MBWT and the Timed Up and Go (TUG). The dual-task condition consisted of subtracting two by two while performing the test, starting from a random number less than 100; Results: Values showed that the 3MBWT can be considered reliable under single and dual-task conditions when measured with both a manual stopwatch and a Chronopic automatic stopwatch. A strong concurrent validity was shown of 3MBWT and TUG results in the test and retest and the different devices. The relationship between the performance of the 3MBWT in test and retest conditions under single and dual-task conditions measured with different devices and the impact of the disease were high; Conclusions: The 3MBWT is a reliable tool under the single and dual-task conditions in women with FM. It shows higher reliability values when time is taken using a Chronopic. This test also shows high concurrent validity with the TUG test. Its performance is related to the impact of the disease.

Keywords: activities of daily living; assessment; chronic pain; mobility; reproducibility.

Grants and funding

The author J.L.L.-L. was supported by a grant from the Spanish Ministry of Education, Culture, and Sport (FPU18/05655). The author S.V. was supported by a grant from the Universities Ministry of Spain and the European Union (NextGenerationUE) “Ayuda del Programa de Recualificación del Sistema Universitario Español, Modalidad de ayudas Margarita Salas para la formación de jóvenes doctores” (MS-03). The author A.M.-G. was supported by a grant from the Spanish Ministry of Education, Culture and Sport (FPU17/03130). In the framework of the Spanish National R+D+i Plan, the current study was co-funded by the Spanish Ministry of Sciences and Innovation (reference PID2019-107191RB-I00/AEI/10.13039/501100011033). This study was also funded by the Research Grant for Groups (GR21176) funded by the Junta de Extremadura and the European Regional Development Fund (ERDF/FEDER) “a way of doing Europe”. This study was supported by the Biomedical Research Networking Center on Frailty and Healthy Aging (CIBERFES) and FEDER funds from the European Union (CB16/10/00477) “a way of doing Europe”.