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Assessment of physical activity in older Belgian adults : validity and reliability of an adapted interview version of the long International Physical Activity Questionnaire (IPAQ-L)

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Abstract
Background: Adequate monitoring of older adults’ physical activity (PA) is essential to develop effective health promotion programs. The present study examined criterion validity and test-retest reliability of the long International Physical Activity Questionnaire (IPAQ-L), adapted for Belgian, community-dwelling older adults (65y and older). Methods: Participants (n = 434) completed the last seven days version of IPAQ-L, modified for the Belgian population of community-dwelling older adults. This elderly-adapted version of IPAQ-L combined vigorous and moderate activities, and questions on gait speed and recreational cycling were added. Furthermore, participants wore an ActiGraph GT3X(+) accelerometer for at least five days. Criterion validity was determined by comparing self-reported weekly minutes of moderate-to-vigorous physical activity (MVPA) and weekly minutes of total PA with accelerometer data, defined by two different cut points (Freedson vs. Copeland). To examine test-retest reliability, a subsample of 29 participants completed IPAQ-L for a second time within a ten day interval. Results: IPAQ-L showed moderate criterion validity for measuring weekly minutes of MVPA and total PA (Spearman’s ρ range 0.33–0.40). However, plots on agreement between self-reported and accelerometer PA showed a systematic over-reporting of IPAQ-L for MVPA. In contrast, plots indicated that IPAQ-L under-estimated levels of total PA, however, this under-estimation of total PA was substantially lower than the observed over-reporting of MVPA. Test-retest reliability was moderate-to-good for work-related PA, domestic PA, MVPA and total PA (ICC range 0.52–0.81), but poorer for transportation and recreational PA (ICC 0.44 and 0.43, respectively). Conclusions: Criterion validity results suggest that IPAQ-L is more valid to measure older adults’ weeklyminutes of total PA than weekly MVPA minutes. Moreover, results might imply that content validity of IPAQ-L can be improved if specific light-intensity PA items are incorporated into IPAQ-L. Test-retest reliability of IPAQ-L was moderate to good, except for weekly minutes of transportation and recreational PA, probably due to week-to-week variability of these behaviors.
Keywords
ELDERLY PASE, INACTIVITY, ACCELEROMETER, WALKING, PUBLIC-HEALTH, CHINESE VERSION, HEALTH-BENEFITS, ACTIVITY SCALE, AGREEMENT, MOBILITY

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Chicago
Van Holle, Veerle, Ilse De Bourdeaudhuij, Benedicte Deforche, Jelle Van Cauwenberg, and Delfien Van Dyck. 2015. “Assessment of Physical Activity in Older Belgian Adults : Validity and Reliability of an Adapted Interview Version of the Long International Physical Activity Questionnaire (IPAQ-L).” Bmc Public Health 15.
APA
Van Holle, V., De Bourdeaudhuij, I., Deforche, B., Van Cauwenberg, J., & Van Dyck, D. (2015). Assessment of physical activity in older Belgian adults : validity and reliability of an adapted interview version of the long International Physical Activity Questionnaire (IPAQ-L). BMC PUBLIC HEALTH, 15.
Vancouver
1.
Van Holle V, De Bourdeaudhuij I, Deforche B, Van Cauwenberg J, Van Dyck D. Assessment of physical activity in older Belgian adults : validity and reliability of an adapted interview version of the long International Physical Activity Questionnaire (IPAQ-L). BMC PUBLIC HEALTH. 2015;15.
MLA
Van Holle, Veerle, Ilse De Bourdeaudhuij, Benedicte Deforche, et al. “Assessment of Physical Activity in Older Belgian Adults : Validity and Reliability of an Adapted Interview Version of the Long International Physical Activity Questionnaire (IPAQ-L).” BMC PUBLIC HEALTH 15 (2015): n. pag. Print.
@article{5957035,
  abstract     = {Background: Adequate monitoring of older adults{\textquoteright} physical activity (PA) is essential to develop effective health promotion programs. The present study examined criterion validity and test-retest reliability of the long International Physical Activity Questionnaire (IPAQ-L), adapted for Belgian, community-dwelling older adults (65y and older).
Methods: Participants (n = 434) completed the last seven days version of IPAQ-L, modified for the Belgian population of community-dwelling older adults. This elderly-adapted version of IPAQ-L combined vigorous and moderate activities, and questions on gait speed and recreational cycling were added. Furthermore, participants wore an ActiGraph GT3X(+) accelerometer for at least five days. Criterion validity was determined by comparing self-reported weekly minutes of moderate-to-vigorous physical activity (MVPA) and weekly minutes of total PA with accelerometer data, defined by two different cut points (Freedson vs. Copeland). To examine test-retest reliability, a subsample of 29 participants completed IPAQ-L for a second time within a ten day interval.
Results: IPAQ-L showed moderate criterion validity for measuring weekly minutes of MVPA and total PA (Spearman{\textquoteright}s \ensuremath{\rho} range 0.33--0.40). However, plots on agreement between self-reported and accelerometer PA showed a systematic over-reporting of IPAQ-L for MVPA. In contrast, plots indicated that IPAQ-L under-estimated levels of total PA, however, this under-estimation of total PA was substantially lower than the observed over-reporting of MVPA. Test-retest reliability was moderate-to-good for work-related PA, domestic PA, MVPA and total PA (ICC range 0.52--0.81), but poorer for transportation and recreational PA (ICC 0.44 and 0.43, respectively).
Conclusions: Criterion validity results suggest that IPAQ-L is more valid to measure older adults{\textquoteright} weeklyminutes of total PA than weekly MVPA minutes. Moreover, results might imply that content validity of IPAQ-L can be improved if specific light-intensity PA items are incorporated into IPAQ-L. Test-retest reliability of IPAQ-L was moderate to good, except for weekly minutes of transportation and recreational PA, probably due to week-to-week variability of these behaviors.},
  articleno    = {433},
  author       = {Van Holle, Veerle and De Bourdeaudhuij, Ilse and Deforche, Benedicte and Van Cauwenberg, Jelle and Van Dyck, Delfien},
  issn         = {1471-2458},
  journal      = {BMC PUBLIC HEALTH},
  keyword      = {ELDERLY PASE,INACTIVITY,ACCELEROMETER,WALKING,PUBLIC-HEALTH,CHINESE VERSION,HEALTH-BENEFITS,ACTIVITY SCALE,AGREEMENT,MOBILITY},
  language     = {eng},
  pages        = {14},
  title        = {Assessment of physical activity in older Belgian adults : validity and reliability of an adapted interview version of the long International Physical Activity Questionnaire (IPAQ-L)},
  url          = {http://dx.doi.org/10.1186/s12889-015-1785-3},
  volume       = {15},
  year         = {2015},
}

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