Translation, adaptation and validation of the “Measure of older adults sedentary time” questionnaire in Brazilian older adults

Magno, Fernanda Aparecida Lopes; Hélio Júnior, Jairo; Lourenço, Camilo Luis Monteiro; Pereira, Kariny Rodrigues; Meneguci, Joilson; Sasaki, Jeffer Eidi; Virtuoso Júnior, Jair Sindra

doi:10.5007/1980-0037.2018v20n6p491

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original article • Rev. bras. cineantropom. desempenho hum 20 (6) • Nov-Dec 2018 • https://doi.org/10.5007/1980-0037.2018v20n6p491 linkcopy

Translation, adaptation and validation of the “Measure of older adults sedentary time” questionnaire in Brazilian older adults

Adaptação transcultural e validação do questionário “Measure of older adults sedentary time” em idosos brasileiros

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

Modern lifestyle is associated with prolonged exposure to sedentary behavior (SB), especially in older adults; however, there is a lack of validated questionnaires to measure SB in Brazilian older adults. The aim of this study was to adapt and validate the Brazilian version of the "Measure of Older Adults Sedentary Time" (MOST) questionnaire in Brazilian older adults. Content validity, clarity and concurrent validity of the adapted MOST were examined. Fifty-seven participants (68.7 ± 3.47 years) answered the adapted version of the MOST questionnaire and wore an ActiGraph wGT3X-BT accelerometer for seven days. After this period, participants answered the adapted MOST again and the accelerometer was collected. MOST answers were summed over for calculating self-reported time spent in SB. A cutoff point of < 100 counts/min was applied to accelerometer data for estimating time spent in SB. The relationship between SB estimates from MOST and accelerometer was verified by Pearson correlation, reproducibility was verified by intra-class correlation coefficient (ICC), internal consistency by Cronbach's alpha (α) and concordance by Bland-Altman. Significance was set at P <0.05. Content validity index and clarity index were 100% and 98%, respectively. ICC was 0.72 (95% CI: 0.56-0.82) for total time in SB assessed with the MOST questionnaire. The correlation between SB estimates from MOST and accelerometer data was 0.37 (95% CI: 0.13-0.58). The adapted MOST systematically underestimated SB compared to accelerometer (measurement bias: -732.8 min/week [2087.6; -3553.2 min/wk]). The adapted MOST questionnaire presents adequate validity for assessing SB in the Brazilian older adults.

Key words Health in the elderly; Inquiry and questionnaire; Validation studies

		General
Variable		%	n
Sample
Sex
	Male	26.3	15
	Female	73.7	42
Schooling
	4 to 7 years (primary school)	42.2	24
	8 to 10 years (elementary school)	24.5	14
	11 to 13 years (high school)	24.5	14
	≥ 14 years (higher education)	8.8	5
BMI
	Eutrophic	31.6	18
	Overweight	45.6	26
	Obese	22.8	13
Level of physical activity (moderate / vigorous)
	≥150 min/week	35.1	20
	<150 min/week	64.9	37

	n	Minimum - Maximum	Mean - SD
Watching television	57	0 - 3240	1041.3 ± 781.2
Using the computer	57	0 - 840	59.7 ± 131.2
Reading	57	0 - 720	86.2 ± 173.3
Socialization	57	0 - 840	215.7 ± 233.6
Commuting	57	0 - 840	149.2 ± 163.8
Hobbies	57	0 - 3360	240.6 ± 500.8
Other activities	57	0 - 980	324. 9 ± 189.4
Total Time - Test	57	25 - 4840	2168.8 ± 1054.8
Total Time - Retest MOST	57	330 - 6115	2414.2 ± 1135.5
Total Test-retest MOST	57	-	2291.4 ± 1017.6
Accelerometer	57	2512.8 - 4463.4	3515.6 ± 505.5

Variables	Test and Retest (T1 vs T2)
Variables	r (95% CI)	P	ICC (95% CI)	P
Watching television	0.70(0.54-0.81)	< 0.001	0.71(0.55-0.81)	< 0.001
Using the computer	0.60(0.41-0.75)	< 0.001	0.58(0.39-0.73)	< 0.001
Reading	0.61(0.41-0.75)	< 0.001	0.61(0.41-0.75)	< 0.001
Socialization	0.53(0.32-0.69)	< 0.001	0.41(0.18-0.60)	< 0.001
Commuting	0.65(0.47-0.78)	< 0.001	0.65(0.47-0.77)	< 0.001
Hobbies	0.72(0.57-0.82)	< 0.001	0.72(0.57-0.83)	< 0.001
Other activities	0.55(0.35-0.71)	< 0.001	0.55(0.34-0.71)	< 0.001
Total Time	0.74(0.59-0.83)	< 0.001	0.72(0.56-0.82)	< 0.001

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Universidade Federal de Santa Catarina Universidade Federal de Santa Catarina, Campus Universitário Trindade, Centro de Desportos - RBCDH, Zip postal: 88040-900 - Florianópolis, SC. Brasil, Fone/fax : (55 48) 3721-8562/(55 48) 3721-6348 - Florianópolis - SC - Brazil
E-mail: rbcdh@contato.ufsc.br

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[1] Note. BMI: Body Mass Index.