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Faculty of Kinesiology Thesis Defence Andrea Mayo MSESS -FR and SJ

Author: myUNB News

Posted on Jul 30, 2018

Category: News and Notices

“Potential Functional Benefits of a Comprehensive Evaluation of Physical Activities for Canadian Older Adults” will be defended by Andrea Mayo (MSESS) on Thursday, Aug. 2 at 1 p.m. in The Richard J. CURRIE CENTER, 3-22.


Background: Most physical activity (PA) recommendations exclude light and sedentary activities that have the potential to influence physical function for older adults.

Purpose:  1) To evaluate how adults age 45-85 years old are accurately reporting activities over a full week using a valid questionnaire, and 2) to test the association between a comprehensive approach to evaluate PA, and physical function.

Methods: A total of 25,072 adults (aged 45-85) from the baseline data of the Canadian Longitudinal Study on Aging were included in this cross-sectional study.  PA was self-reported via the Physical Activity Scale for the Elderly (PASE) and was used to make three comprehensive indexes based on MET/Min/Week: 1) Total Index (All Activities Performed), 2) RT Index (Resistance/Aerobic Exercises), and 3) SED Index (Sedentary/Activity Time). The physical function score was derived from five objective tests related to strength, agility, speed, balance, and power, using factor analysis. Logistic regression models were used, determined on the median by age group and sex, to determine the association between the comprehensive approach to evaluate PA and physical function.

Results: Less than one percent of the sample was reporting between 24 ± 2 hours per day of any activities, but 58 per cent of the sample was overestimating the average intensity of their activities over 24 hours. After adjusting for confounders, all three indexes were associated with the physical function score.  When further adjusting for meeting the current PA guideline, the Total and the SED indexes remained significant [Total Index: OR =1.02, CI = (1.01-1.03), SED: OR = 0.94, CI = (0.92-0.97)].

Conclusion: First, this study suggests that the PASE underestimate the total time spent performing activities but overestimate the intensity of the reported activities. Second, our results suggest that the combination of activities in the current guidelines and activities beyond the current recommendations should be considered important as they are associated with physical function of older adults.

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