Obesity Clinical Trial - The Effects of Strawberry Supplementation on

Status Completed

Clinical Trial Summary

This study is being conducted to assess the effect of dietary strawberry supplementation on cognition and mobility in obese middle-aged and older adults. It is hypothesized that plant compounds, present in strawberries, may improve cognition and mobility.

Clinical Trial Description

Previously, the investigators have shown that dietary berry fruit are able to reverse several parameters of brain aging, as well as age-related motor and cognitive deficits when fed to aged rats. They have shown that strawberry, in particular, can reduce oxidative stress and pro-inflammatory signaling in the brain and improve both mobility and cognition. A recent study also found that the addition of two servings of strawberry per day for 3 months could significantly improve verbal and spatial memory among healthy older adults, particularly on tests with high cognitive demand. These effects may reflect the direct effects of strawberries' bioactive and neuroavailable polyphenols on brain signaling or their indirect effects through antioxidant and anti-inflammatory pathways. However, participants in that study were selected from a healthy aging population, which made it difficult to detect changes in balance, mobility, and the less complex cognitive tasks. Therefore, the investigators are proposing the current study to assess the effects of dietary strawberry on mobility and cognition among a compromised population, obese older adults, who are at increased risk for cardiovascular, metabolic, and neurodegenerative disease. The risk for heart disease, diabetes, stroke, cancer and dementia increases in direct relation to overweight and obesity measures, and research now shows that obesity is a primary cause of mental deterioration among the middle-aged and senior populations. In this study, obese older adults (55-75yo, BMI 30-36) will consume 24g/d freeze-dried strawberry or control powder for 3 months and complete a battery of lifestyle, mobility, and cognitive tests at 3 time points. The investigators hypothesize that supplementing obese older adults' diet with strawberry will improve performance on complex tasks involving mobility and cognition. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03162913
Study type	Interventional
Source	USDA Human Nutrition Research Center on Aging
Contact
Status	Completed
Phase	N/A
Start date	October 1, 2017
Completion date	October 20, 2023

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

The Effects of Strawberry Supplementation on Memory and Gait Among Over-weight Older Adults

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms