scholarly journals Lutein and Zeaxanthin Influence Brain Function in Older Adults: A Randomized Controlled Trial

2017 ◽  
Vol 24 (1) ◽  
pp. 77-90 ◽  
Author(s):  
Cutter A. Lindbergh ◽  
Lisa M. Renzi-Hammond ◽  
Billy R. Hammond ◽  
Douglas P. Terry ◽  
Catherine M. Mewborn ◽  
...  
Keyword(s):  
Older Adults ◽  
Randomized Controlled Trial ◽  
Brain Function ◽  
Controlled Trial ◽  
Verbal Learning ◽  
Learning Task ◽  
Bold Signal ◽  
Post Intervention ◽  
Randomized Controlled ◽  
Verbal Learning Task

AbstractObjectives:The present study constitutes the first randomized controlled trial to investigate the relation of lutein (L) and zeaxanthin (Z) to brain function using functional magnetic resonance imaging (fMRI). It was hypothesized that L and Z supplementation in older adults would enhance neural efficiency (i.e., reduce activation) and cognitive performance on a verbal learning task relative to placebo.Methods:A total of 44 community-dwelling older adults (mean age=72 years) were randomly assigned to receive either placebo or L+Z supplementation (12 mg/daily) for 1 year. Neurocognitive performance was assessed at baseline and post-intervention on an fMRI-adapted task involving learning and recalling word pairs. Imaging contrasts of blood-oxygen-level-dependent (BOLD) signal were created by subtracting active control trials from learning and recall trials. A flexible factorial model was employed to investigate the expected group (placebovs. supplement) by time (baselinevs. post-intervention) interaction in pre-specified regions-of-interest.Results:L and Z appeared to buffer cognitive decline on the verbal learning task (Cohen’sd=.84). Significant interactions during learning were observed in left dorsolateral prefrontal cortex and anterior cingulate cortex (p< .05, family-wise-error corrected). However, these effects were in the direction of increased rather than decreased BOLD signal. Although the omnibus interaction was not significant during recall, within-group contrasts revealed significant increases in left prefrontal activation in the supplement group only.Conclusions:L and Z supplementation appears to benefit neurocognitive function by enhancing cerebral perfusion, even if consumed for a discrete period of time in late life. (JINS, 2018,24, 77–90)

scholarly journals Physical Activity Improves Verbal and Spatial Memory in Older Adults with Probable Mild Cognitive Impairment: A 6-Month Randomized Controlled Trial

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Lindsay S. Nagamatsu ◽  
Alison Chan ◽  
Jennifer C. Davis ◽  
B. Lynn Beattie ◽  
Peter Graf ◽  
...  
Keyword(s):  
Older Adults ◽  
Randomized Controlled Trial ◽  
Spatial Memory ◽  
Aerobic Training ◽  
Controlled Trial ◽  
Memory Performance ◽  
Verbal Learning ◽  
Training Group ◽  
Control Group ◽  
Randomized Controlled

We report secondary findings from a randomized controlled trial on the effects of exercise on memory in older adults with probable MCI. We randomized 86 women aged 70–80 years with subjective memory complaints into one of three groups: resistance training, aerobic training, or balance and tone (control). All participants exercised twice per week for six months. We measured verbal memory and learning using the Rey Auditory Verbal Learning Test (RAVLT) and spatial memory using a computerized test, before and after trial completion. We found that the aerobic training group remembered significantly more items in the loss after interference condition of the RAVLT compared with the control group after six months of training. In addition, both experimental groups showed improved spatial memory performance in the most difficult condition where they were required to memorize the spatial location of three items, compared with the control group. Lastly, we found a significant correlation between spatial memory performance and overall physical capacity after intervention in the aerobic training group. Taken together, our results provide support for the prevailing notion that exercise can positively impact cognitive functioning and may represent an effective strategy to improve memory in those who have begun to experience cognitive decline.

scholarly journals Exercise and Horticultural Programs for Older Adults with Depressive Symptoms and Memory Problems: A Randomized Controlled Trial

2019 ◽  
Vol 9 (1) ◽  
pp. 99 ◽  
Author(s):  
Hyuma Makizako ◽  
Kota Tsutsumimoto ◽  
Takehiko Doi ◽  
Keitaro Makino ◽  
Sho Nakakubo ◽  
...  
Keyword(s):  
Older Adults ◽  
Randomized Controlled Trial ◽  
Depressive Symptoms ◽  
Controlled Trial ◽  
Exercise Group ◽  
Control Group ◽  
Control Groups ◽  
Post Intervention ◽  
Randomized Controlled ◽  
Memory Problems

Depressive symptoms and memory problems are risk factors for dementia. Exercise can reduce these in older people, and horticultural activity can benefit people with dementia. This study assessed the efficacy of exercise and horticultural interventions for community-dwelling older adults with depressive symptoms and mild memory decline. In this randomized controlled trial, older adults (n = 89) were assigned to exercise, horticultural, or control groups. Exercise and horticultural programs included 20 weekly 90-min sessions. The control group attended two 90-min classes. Outcomes were assessed at baseline, and then 6- and 12-months post-intervention. Primary outcome measures were the Geriatric Depression Scale-15 (GDS-15) and Wechsler Memory Scale-Revised. Walking speed, two-minute walking test scores, social network, life space, and subjective daily physical activity were secondary outcome measures. Compared with the control group, the exercise group obtained higher immediate and delayed recall logical memory scores, and the increase in immediate recall scores remained 12-months post-intervention. Two-minute walking performance improved in the exercise group, but not after 12 months. GDS-15 scores showed no significant improvements. The horticultural and control groups showed no differences. Exercise may improve memory, while horticultural activity may not. The effects of exercise and horticultural interventions on depressive symptoms remain unclear.

Self-administered acupressure for knee osteoarthritis in middle-aged and older adults: a pilot randomized controlled trial

2019 ◽  
Vol 38 (2) ◽  
pp. 75-85 ◽  
Author(s):  
Denise Shuk Ting Cheung ◽  
Wing-Fai Yeung ◽  
Lorna Kwai-Ping Suen ◽  
Tsz Chung Chong ◽  
Yuan-Shan Ho ◽  
...  
Keyword(s):  
Older Adults ◽  
Randomized Controlled Trial ◽  
Health Education ◽  
Knee Osteoarthritis ◽  
Pain Intensity ◽  
Controlled Trial ◽  
Secondary Outcome ◽  
Post Intervention ◽  
Randomized Controlled ◽  
Pilot Randomized Controlled Trial

Objective: To test the acceptability and feasibility of self-administered acupressure as an intervention for knee pain among middle-aged and older adults with knee osteoarthritis (KOA). Methods: In this pilot randomized controlled trial, 35 participants with KOA were randomized to receive self-administered acupressure (n = 17, two self-administered acupressure training sessions followed by self-practice for 6 weeks) or knee health education (n = 18, two health education sessions about KOA management followed by self-care for 6 weeks). Current pain intensity (primary outcome) was measured using a Numeric Rating Scale (NRS) at baseline and weeks 1, 2, 4 and 6 (post-intervention). Secondary outcome measures included worst and least pain intensity, the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), range of motion (ROM) of the knee joints and Short-Form Six-Dimension (SF-6D) scores for health-related quality of life. Results: Participants in both groups attended all training sessions. In the self-administered acupressure group, all subjects mastered the acupressure technique and passed a consistency check. Both groups showed a decreasing trend in current knee pain intensity measured using NRS post-intervention. A medium between-group effect size (0.40) was found, but between-group differences were not statistically significant. The other secondary outcome measures were also comparable between both groups post-intervention (all p > 0.05). Conclusion: A two-session self-administered acupressure training was acceptable to and feasible in participants with KOA. The data generated allowed for calculation of a sample size for a definitive randomized controlled trial (RCT) to confirm whether self-acupressure is effective for pain management in KOA. Furthermore trials with adequate power and longer follow-up periods are warranted.

A Randomized Controlled Trial Comparing Physical and Mental Lingual Exercise for Healthy Older Adults

Dysphagia ◽  
2020 ◽  
Author(s):  
Sarah H. Szynkiewicz ◽  
Erin Kamarunas ◽  
Teresa Drulia ◽  
Christina V. Nobriga ◽  
Lindsay Griffin ◽  
...  
Keyword(s):  
Older Adults ◽  
Randomized Controlled Trial ◽  
Controlled Trial ◽  
Healthy Older Adults ◽  
Randomized Controlled

scholarly journals Boxing vs Sensory Exercise for Parkinson’s Disease: A Double-Blinded Randomized Controlled Trial

2021 ◽  
pp. 154596832110231
Author(s):  
Kishoree Sangarapillai ◽  
Benjamin M. Norman ◽  
Quincy J. Almeida
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Randomized Controlled Trial ◽  
Repeated Measures ◽  
Rating Scale ◽  
Controlled Trial ◽  
Motor Symptoms ◽  
Post Intervention ◽  
Randomized Controlled ◽  
Double Blinded

Background. Exercise is increasingly becoming recognized as an important adjunct to medications in the clinical management of Parkinson’s disease (PD). Boxing and sensory exercise have shown immediate benefits, but whether they continue beyond program completion is unknown. This study aimed to investigate the effects of boxing and sensory training on motor symptoms of PD, and whether these benefits remain upon completion of the intervention. Methods. In this 20-week double-blinded randomized controlled trial, 40 participants with idiopathic PD were randomized into 2 treatment groups, (n = 20) boxing or (n = 20) sensory exercise. Participants completed 10 weeks of intervention. Motor symptoms were assessed at (week 0, 10, and 20) using the Unified Parkinson’s Disease Rating Scale (UPDRS-III). Data were analyzed using SPSS, and repeated-measures ANOVA was conducted. Results. A significant interaction effect between groups and time were observed F(1, 39) = 4.566, P = .036, where the sensory group improved in comparison to the boxing group. Post hoc analysis revealed that in comparison to boxing, the effects of exercise did not wear off at washout (week 20) P < .006. Conclusion. Future rehabilitation research should incorporate similar measures to explore whether effects of exercise wear off post intervention.

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