Concurrent validity of the Portuguese version of the Brief physical activity assessment tool

Cruz, Joana; Jácome, Cristina; Morais, Nuno; Oliveira, Ana; Marques, Alda

Publication

Concurrent validity of the Portuguese version of the Brief physical activity assessment tool

2018Conference object

dc.contributor.author	Cruz, Joana
dc.contributor.author	Jácome, Cristina
dc.contributor.author	Morais, Nuno
dc.contributor.author	Oliveira, Ana
dc.contributor.author	Marques, Alda
dc.date.accessioned	2019-10-04T15:55:36Z
dc.date.available	2019-10-04T15:55:36Z
dc.date.issued	2018
dc.description.abstract	Introduction: Physical activity (PA) is recognised as an important health enhancing behaviour and should be routinely assessed in clinical practice to identify insufficiently active people. Activity monitors, such as accelerometers, provide objective assessment of free-living PA being the preferred assessment method in research settings. However, they are too expensive to be used in resource-constrained clinical settings. Several PA questionnaires have already been validated to the European Portuguese but some of them take too long to complete, hence unfeasible for use in clinical practice. Shorter PA assessment tools are, therefore, needed. Objectives: To explore the relationship between the Portuguese version of a short PA questionnaire, the Brief physical activity assessment tool (Brief-PA tool), and the International Physical Activity Questionnaire short form (IPAQ-sf), which is a valid and reliable PA assessment tool already tested in the Portuguese population. A secondary aim was to explore the test-retest reliability of the Brief-PA tool. Methods: The Brief-PA tool1 consists of 2 questions which assess the frequency and duration of moderate and vigorous PA undertaken in a ‘usual’ week. The total score is obtained by summing the results of the two questions (range 0-8). People with a score ≥4 are considered ‘sufficiently active’. Since the tool is not available in Portuguese, a linguistic adaptation was conducted using the forward- and back-translation method. Then, 86 healthy volunteers (49.518.1 years, age range 20-69; 53 female) completed the Brief-PA tool and the IPAQ-sf. A sub-sample (n=56, 43.118.1 years, 37 female) completed the Brief-PA tool one week later. Spearman’s rank correlation coefficient (ρ) was used to assess correlations between the Brief-PA total score with IPAQ-sf results (MET-min/week). Percentage of agreement (%agreement) and Cohen’s kappa were used to assess the agreement between categorical scores obtained from the two measures (i.e., ‘sufficiently’ and ‘insufficiently’ active) and test-retest reliability of the Brief-PA tool. Results: Significant correlations were found between the Brief-PA tool and the IPAQ-sf (ρ=0.721, p<0.001). The Brief-PA tool identified 34.8% sufficiently active participants while the IPAQ-sf identified 59.3%. Agreement between measures was moderate (%agreement=70.9%, kappa=0.450). Test-retest reliability of the Brief-PA tool was substantial (%agreement=89.3%, kappa=0.755). Conclusions: The Brief-PA tool seems to be valid and reliable for assessing PA in the Portuguese adult population, although the agreement with the IPAQ-sf was only moderate. Further research assessing the validity of the Brief-PA tool with objective measures is needed.	pt_PT
dc.description.version	info:eu-repo/semantics/publishedVersion	pt_PT
dc.identifier.citation	Cruz J, Jácome C, Morais N, Oliveira A, Marques A. (2018). Concurrent validity of the Portuguese version of the Brief physical activity assessment tool (P150). BMC Health Services Research, 18(Suppl 2):684.	pt_PT
dc.identifier.uri	http://hdl.handle.net/10400.8/4173
dc.language.iso	eng	pt_PT
dc.peerreviewed	yes	pt_PT
dc.relation.ispartofseries	Suppl 2;
dc.relation.publisherversion	https://bmchealthservres.biomedcentral.com/articles/supplements/volume-18-supplement-2	pt_PT
dc.subject	Concurrent validity	pt_PT
dc.subject	Daily living	pt_PT
dc.subject	Physical activity	pt_PT
dc.subject	Self-report measure	pt_PT
dc.title	Concurrent validity of the Portuguese version of the Brief physical activity assessment tool	pt_PT
dc.type	conference object
dspace.entity.type	Publication
oaire.citation.conferencePlace	Leiria, Portugal	pt_PT
oaire.citation.startPage	P150	pt_PT
oaire.citation.title	BMC Health Services Research	pt_PT
oaire.citation.volume	18	pt_PT
person.familyName	Cruz
person.familyName	Valente Morais
person.familyName	Marques
person.givenName	Joana
person.givenName	Nuno Alexandre
person.givenName	Alda
person.identifier	R_whtEEAAAAJ
person.identifier.ciencia-id	E213-7D20-5C3C
person.identifier.ciencia-id	7D15-1925-242F
person.identifier.ciencia-id	DE15-EFBA-4856
person.identifier.orcid	0000-0002-4911-4469
person.identifier.orcid	0000-0002-8209-3719
person.identifier.orcid	0000-0003-4980-6200
person.identifier.rid	K-7030-2013
person.identifier.scopus-author-id	36715922000
person.identifier.scopus-author-id	55317141300
rcaap.rights	openAccess	pt_PT
rcaap.type	conferenceObject	pt_PT
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relation.isAuthorOfPublication.latestForDiscovery	33428074-748a-4751-b2f7-9f24247715fd