scholarly journals Perceived stress mediates the relationship between mindfulness and negative affect variability: A randomized controlled trial among middle-aged to older adults

2018 ◽  
Vol 35 (1) ◽  
pp. 89-97 ◽  
Author(s):  
Dana Dharmakaya Colgan ◽  
Daniel Klee ◽  
Tab Memmott ◽  
Jeffrey Proulx ◽  
Barry Oken
2020 ◽  
Vol 96 ◽  
pp. 106105
Author(s):  
Manfred Diehl ◽  
Abigail Nehrkorn-Bailey ◽  
Katherine Thompson ◽  
Diana Rodriguez ◽  
Kaigang Li ◽  
...  

10.2196/14969 ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. e14969
Author(s):  
Jing Liao ◽  
Hai-Yan Xiao ◽  
Xue-Qi Li ◽  
Shu-Hua Sun ◽  
Shi-Xing Liu ◽  
...  

Background Wearable activity trackers offer potential to optimize behavior and support self-management. To assist older adults in benefiting from mobile technologies, theory-driven deployment strategies are needed to overcome personal, technological, and sociocontextual barriers in technology adoption. Objective To test the effectiveness of a social group–based strategy to improve the acceptability and adoption of activity trackers by middle-aged and older adults. Methods A cluster randomized controlled trial was conducted among 13 groups of middle-aged and older adults (≥45 years) performing group dancing (ie, square dancing) as a form of exercise in Guangzhou from November 2017 to October 2018. These dancing groups were randomized 1:1 into two arms, and both received wrist-worn activity trackers and instructions at the baseline face-to-face assessment. Based on the Information-Motivation-Behavior Skill framework, the intervention arm was also given a tutorial on the purpose of exercise monitoring (Information), encouraged to participate in exercise and share their exercise records with their dancing peers (Motivation), and were further assisted with the use of the activity tracker (Behavior Skill). We examined two process outcomes: acceptability evaluated by a 14-item questionnaire, and adoption assessed by the uploaded step count data. Intention-to-treat analysis was applied, with the treatment effects estimated by multilevel models. Results All dancing groups were followed up for the postintervention reassessment, with 61/69 (88%) participants of the intervention arm (7 groups) and 56/80 (70%) participants of the control arm (6 groups). Participants’ sociodemographic characteristics (mean age 62 years, retired) and health status were comparable between the two arms, except the intervention arm had fewer female participants and lower cognitive test scores. Our intervention significantly increased the participants’ overall acceptability by 6.8 points (95% CI 2.2-11.4), mainly driven by promoted motivation (adjusted group difference 2.0, 95% CI 0.5-3.6), increased usefulness (adjusted group difference 2.5, 95% CI 0.9-4.1), and better perceived ease of use (adjusted group difference 1.2, 95% CI 0.1-2.4), whereas enjoyment and comfort were not increased (adjusted group difference 0.9, 95% CI –0.4-2.3). Higher adoption was also observed among participants in the intervention arm, who were twice as likely to have valid daily step account data than their controlled counterparts (adjusted incidence relative risk [IRR]=2.0, 95% CI 1.2-3.3). The average daily step counts (7803 vs 5653 steps/day for the intervention and control, respectively) were similar between the two arms (adjusted IRR=1.4, 95% CI 0.7-2.5). Conclusions Our social group–based deployment strategy incorporating information, motivation, and behavior skill components effectively promoted acceptability and adoption of activity trackers among community-dwelling middle-aged and older adults. Future studies are needed to examine the long-term effectiveness and apply this social engagement strategy in other group settings or meeting places. Trial Registration Chinese Clinical Trial Registry ChiCTR-IOC-17013185; https://tinyurl.com/vedwc7h.


2019 ◽  
Vol 10 (2) ◽  
pp. 1062-1072
Author(s):  
Negin Navaei ◽  
Shirin Pourafshar ◽  
Neda S. Akhavan ◽  
Nicole S. Litwin ◽  
Elizabeth M. Foley ◽  
...  

Previous research suggests potential for fresh pears as a functional food for promoting cardiometabolic health.


PLoS ONE ◽  
2013 ◽  
Vol 8 (5) ◽  
pp. e61624 ◽  
Author(s):  
Fredric D. Wolinsky ◽  
Mark W. Vander Weg ◽  
M. Bryant Howren ◽  
Michael P. Jones ◽  
Megan M. Dotson

2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 79-79
Author(s):  
Darel Wee Kiat Toh ◽  
Wan Yee Lee ◽  
Hanzhang Zhou ◽  
Clarinda Sutanto ◽  
Delia Pei Shan Lee ◽  
...  

Abstract Objectives The incorporation of zeaxanthin rich wolfberry (Lycium barbarum) into a healthy dietary pattern may augment its antioxidant effects although evidence evaluating whole fruits is lacking. The objectives of this study are to (1) investigate the impact of dietary counselling, either with or without whole dried wolfberry on oxidative stress status in middle-aged and older Singaporean adults and (2) delineate underlying mechanisms by examining associations with the corresponding changes in carotenoids status. Methods In this 16-week, parallel design randomized controlled trial, 40 subjects (29 F, 11 M; aged 50 to 64 y) received dietary counselling to follow a healthy dietary pattern. Compared to the control group (CG, n = 18), the wolfberry group (WG, n = 22) additionally cooked and consumed 15 g/d whole dried wolfberry with their main meals. Biomarkers of oxidative stress (plasma malondialdehyde (MDA) by thiobarbituric acid reactive substance assay and 8-isoprostanes by ELISA) were measured at baseline and week 16. Plasma and dietary carotenoids analyzed by HPLC and 3-day food records respectively were measured at baseline, week 8 and week 16 while skin carotenoids status (SCS) by resonance Raman spectroscopy was assayed every 4 weeks. Results Plasma 8-isoprostanes showed a time effect (P < 0.05), attributed to the marked decline in the WG only (WG: −19.0 ± 43.6 ng/L; CG: −7.7 ± 38.7 ng/L, mean ± SD) though no effect was observed for MDA. A significant interaction effect (P < 0.001), driven by higher plasma zeaxanthin (WG: +0.08 ± 0.13 nmol/L; CG: −0.03 ± 0.05 nmol/L) and SCS (WG: +4242 ± 4938 a.u.; CG: +1713 ± 5921 a.u.) was observed in the WG with a marked increase evident from week 8 onwards although concentrations of the other plasma carotenoids were maintained. Moreover, the change value for plasma zeaxanthin in the WG was inversely associated with the corresponding changes in plasma 8-isoprostanes (−0.21 (−0.43, 0.00) ng/µmol, regression coefficient (95% CI); P = 0.05). This same association was absent in the CG. Conclusions Consuming wolfberry with a healthy dietary pattern attenuates oxidative stress in middle-aged and older adults and this may be attributed to the rich zeaxanthin content in wolfberry. Funding Sources National University of Singapore Ministry of Education, Singapore Agency for Science, Technology and Research.


2012 ◽  
Vol 26 (6) ◽  
pp. 988-995 ◽  
Author(s):  
Janice K. Kiecolt-Glaser ◽  
Martha A. Belury ◽  
Rebecca Andridge ◽  
William B. Malarkey ◽  
Beom Seuk Hwang ◽  
...  

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