PrediabetesCD-WALKNCT07695675
Community Dining, Walking, and Glucose in Older Adults
A study testing Subsidized Community Dining and Home Eating in people with Prediabetes, run by Yang Zhang at 1 site in China.
Trial summary
This study will examine whether eating lunch and dinner at a subsidized community dining site affects postmeal walking and blood glucose patterns in older adults. Participants will be community-dwelling adults aged 60 to 79 years who are eligible for a local elderly meal subsidy and have prediabetes or elevated blood… Read more about this study
- Who is it for?
- Ages 60 to 79 years
- Conditions the study is for
- Prediabetes
- What is being tested?
- Subsidized Community Dining and Home Eating
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 15 participants
- Where
- 1 siteChina
- Study dates
- 1 Aug 2026to 31 Dec 2026
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 60 to 79 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Community-dwelling adults aged 60 to 79 years
- Eligible for the local elderly meal subsidy
- Prediabetes or elevated glycemic risk, defined as HbA1c 5.7% to 6.4% or fasting plasma glucose 100 to 125 mg/dL
- Able to consume meals orally
- Able to walk independently without a walking aid
- Able to attend the community dining site safely
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- Able and willing to wear a continuous glucose monitor and activity tracker
- Able and willing to follow the home-meal plan and study procedures
- Able to provide written informed consent
Who cannot join
- HbA1c ≥6.5% or fasting plasma glucose ≥126 mg/dL
- Diagnosed diabetes
- Use of insulin or glucose-lowering medication
- Severe cognitive impairment
- Acute illness or recent hospitalization
- Severe gastrointestinal disease affecting usual food intake or gastric emptying
Show all 9Show fewer
- Severe renal, hepatic, cardiovascular, or neurologic disease that would make participation unsafe
- Skin conditions preventing continuous glucose monitor use
- Food allergy or dietary restrictions incompatible with the standardized meal plan
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
China1 site, 1 recruiting
- Recruiting
Community Elderly Meal-Assistance Site
Changsha, Hunan, 410017
Meng-Qi Zhen, MA, 8618867413605, 53221639@qq.com
About this study
Official title: Subsidized Community Dining as Social Welfare Infrastructure for Healthy Aging: A Randomized Crossover Field Study of Postmeal Walking and Glycemic Profiles in Older Adults
This study will examine whether eating lunch and dinner at a subsidized community dining site affects postmeal walking and blood glucose patterns in older adults. Participants will be community-dwelling adults aged 60 to 79 years who are eligible for a local elderly meal subsidy and have prediabetes or elevated blood glucose risk.
Each participant will complete two 6-day meal conditions in random order. In one condition, participants will eat lunch and dinner at home. In the other condition, participants will eat lunch and dinner at a subsidized community dining site. Participants will wear a continuous glucose monitor and an activity tracker so the study team can measure postmeal glucose levels, daily glucose patterns, and steps after meals.
The study will compare community dining with home eating to determine whether community dining increases postmeal walking, improves postmeal glucose responses, and affects loneliness and meal experience.
Read the detailed description
Subsidized community dining programs are designed to improve access to affordable meals for older adults, but they may also influence daily movement, social interaction, and metabolic health. Eating at a community dining site may encourage older adults to leave home, walk before or after meals, and interact with others in a shared meal environment.
This study will evaluate subsidized community dining as a real-world meal setting rather than as a prescribed exercise or dietary treatment. Participants will complete both study conditions: home eating and community dining. During the community dining condition, participants will eat lunch and dinner at a subsidized community dining site. During the home-eating condition, participants will eat lunch and dinner at home using meals designed to approximate the energy and macronutrient composition of the community dining meals.
The study will use continuous glucose monitoring and wearable activity tracking to measure postmeal glucose responses, daily glucose profiles, and postmeal steps under free-living conditions. No walking target will be prescribed. After each lunch and dinner, participants will be free to walk, sit, rest, remain at the dining site, or return home according to their usual preference.
The study will also assess loneliness and meal-condition experience to explore whether the dining setting affects social and experiential aspects of eating. Findings may help determine whether subsidized community dining can function not only as food assistance, but also as community-based infrastructure that supports healthy aging.
- Conditions
- Prediabetes
- Being tested
- Subsidized Community Dining, Home Eating
- Keywords
- Older Adults, Postprandial Glucose, Continuous Glucose Monitoring, Physical Activity
- Medical subject headings
- Prediabetic State, Motor Activity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Subsidized Community DiningBehavioural
Participants will eat lunch and dinner at a subsidized community dining site for 6 days. No walking target or exercise prescription will be given. After each meal, participants will be free to walk, sit, rest, remain at the dining site, or return home according to their usual preference.
Home EatingBehavioural
Participants will eat lunch and dinner at home for 6 days using a standardized Chinese meal rotation designed to approximate the energy and macronutrient composition of the community dining meals.
| Study group | Role | What they receive |
|---|---|---|
| Home Eating Followed by Community Dining | Experimental | Participants will complete 6 days of eating lunch and dinner at home, followed by 6 days of eating lunch and dinner at a subsidized community dining site. Receives: Behavioral: Subsidized Community Dining; Behavioral: Home Eating |
| Community Dining Followed by Home Eating | Experimental | Participants will complete 6 days of eating lunch and dinner at a subsidized community dining site, followed by 6 days of eating lunch and dinner at home. Receives: Behavioral: Subsidized Community Dining; Behavioral: Home Eating |
What is being measured
The primary outcome is the main question the study is designed to answer.
Meal-Level 0- to 90-Minute Postprandial Glucose Incremental Area Under the Curve
Postprandial glucose incremental area under the curve (iAUC) will be calculated for each lunch and dinner from exported timestamped continuous glucose monitoring data using the trapezoidal rule. Baseline glucose will be defined as the mean continuous glucose monitoring value during the fixed 30-minute premeal baseline window. The postprandial calculation window will extend from meal completion through 90 minutes after meal completion.
Measured: Study Days 2-13; fixed premeal baseline window through 90 minutes after completion of each lunch and dinner during the 12-day randomized meal-condition period.
Secondary outcomes (9)
Meal-Level 0- to 90-Minute Postmeal Step Count
Postmeal step count will be obtained from the wearable-device activity session started immediately after meal completion and stopped 90 minutes later. This outcome will be assessed separately after lunch and dinner.
Measured: Study Days 2-13; from meal completion through 90 minutes after completion of each lunch and dinner during the 12-day randomized meal-condition period.
Meal-Level Peak Postprandial Glucose
Peak postprandial glucose will be defined as the highest continuous glucose monitoring value during the 90-minute postmeal window after each lunch and dinner.
Measured: Study Days 2-13; from meal completion through 90 minutes after completion of each lunch and dinner during the 12-day randomized meal-condition period.
Meal-Level Time to Peak Postprandial Glucose
Time to peak postprandial glucose will be defined as the time, in minutes, from meal completion to the highest continuous glucose monitoring value during the 90-minute postmeal window after each lunch and dinner.
Measured: Study Days 2-13; from meal completion through 90 minutes after completion of each lunch and dinner during the 12-day randomized meal-condition period.
Daily 24-Hour Mean Glucose
The 24-hour mean glucose will be calculated for each analytic day using valid continuous glucose monitoring readings.
Measured: Study Days 2-13; over each 24-hour analytic day during the 12-day randomized meal-condition period.
Daily Time Above Range
Time above range will be calculated for each analytic day as the percentage of valid continuous glucose monitoring readings above 7.8 mmol/L.
Measured: Study Days 2-13; over each 24-hour analytic day during the 12-day randomized meal-condition period.
Daily Combined Postmeal Steps
Daily combined postmeal steps will be calculated as the sum of 0- to 90-minute postmeal steps after lunch and dinner on the same analytic day.
Measured: Study Days 2-13; summed across the lunch and dinner 90-minute postmeal windows on each 24-hour analytic day during the 12-day randomized meal-condition period.
Total Daily Steps
Total daily steps will be obtained from the wearable activity tracker for each analytic day.
Measured: Study Days 2-13; over each 24-hour analytic day during the 12-day randomized meal-condition period.
End-of-Condition Loneliness Score
Loneliness will be assessed using the 6-item De Jong Gierveld Loneliness Scale. The total score ranges from 0 to 6, with higher scores indicating greater loneliness. The scale will be administered at baseline and at the end of each 6-day meal condition. End-of-condition loneliness scores will be compared between the home-eating and community-dining conditions.
Measured: Baseline and end of each 6-day meal condition during the 12-day randomized meal-condition period.
End-of-Condition Meal-Condition Experience and Satisfaction Score
Meal-condition experience and satisfaction will be assessed using a study-specific 4-item scale covering relaxation during meals, comfort of the meal environment, opportunities for communication, and willingness to go outdoors and be active. Each item will be rated on a 5-point Likert scale. The mean score ranges from 1 to 5, with higher scores indicating a more favorable meal-condition experience.
Measured: End of each 6-day meal condition during the 12-day randomized meal-condition period.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Jul 2026
- Study start1 Aug 2026 (estimated)
- Primary completion31 Dec 2026 (estimated)
- Study completion31 Dec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for PrediabetesStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Health services research
- Allocation
- Randomised
- Intervention model
- Crossover
- Model description
- Participants will complete both meal conditions in a randomized two-sequence, two-period crossover design. One sequence will complete 6 days of home eating followed by 6 days of subsidized community dining. The other sequence will complete 6 days of subsidized community dining followed by 6 days of home eating.
- Masking
- None (open label)
- Enrolment
- 15 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Yang Zhang
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Yang Zhang, Hunan Normal University
- Investigators
- Yang Zhang, PhD, Study chair
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07695675
- Sponsor's protocol ID
- HNU-2026-410
- Acronym
- CD-WALK
- Status last verified
- Jul 2026
- First submitted
- 2 Jul 2026
- Last updated
- 20 Jul 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 20 Jul 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Subsidized Community Dining as Social Welfare Infrastructure for Healthy Aging: A Randomized Crossover Field Study of Postmeal Walking and Glycemic Profiles in Older Adults
- ClinicalTrials.gov ID
- NCT07695675
- Acronym / sponsor ID
- CD-WALK / HNU-2026-410
- Conditions
- Prediabetes
- Keywords
- Older Adults, Postprandial Glucose, Continuous Glucose Monitoring, Physical Activity
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 15 participants (estimated)
- Lead sponsor
- Yang ZhangUniversity, hospital or other
- Study start
- 1 Aug 2026 (estimated)
- Primary completion
- 31 Dec 2026 (estimated)
- Study completion
- 31 Dec 2026 (estimated)
- First posted
- 10 Jul 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study will examine whether eating lunch and dinner at a subsidized community dining site affects postmeal walking and blood glucose patterns in older adults. Participants will be community-dwelling adults aged 60 to 79 years who are eligible for a local elderly meal subsidy and have prediabetes or elevated blood glucose risk.
Each participant will complete two 6-day meal conditions in random order. In one condition, participants will eat lunch and dinner at home. In the other condition, participants will eat lunch and dinner at a subsidized community dining site. Participants will wear a continuous glucose monitor and an activity tracker so the study team can measure postmeal glucose levels, daily glucose patterns, and steps after meals.
The study will compare community dining with home eating to determine whether community dining increases postmeal walking, improves postmeal glucose responses, and affects loneliness and meal experience.
Detailed description
Subsidized community dining programs are designed to improve access to affordable meals for older adults, but they may also influence daily movement, social interaction, and metabolic health. Eating at a community dining site may encourage older adults to leave home, walk before or after meals, and interact with others in a shared meal environment.
This study will evaluate subsidized community dining as a real-world meal setting rather than as a prescribed exercise or dietary treatment. Participants will complete both study conditions: home eating and community dining. During the community dining condition, participants will eat lunch and dinner at a subsidized community dining site. During the home-eating condition, participants will eat lunch and dinner at home using meals designed to approximate the energy and macronutrient composition of the community dining meals.
The study will use continuous glucose monitoring and wearable activity tracking to measure postmeal glucose responses, daily glucose profiles, and postmeal steps under free-living conditions. No walking target will be prescribed. After each lunch and dinner, participants will be free to walk, sit, rest, remain at the dining site, or return home according to their usual preference.
The study will also assess loneliness and meal-condition experience to explore whether the dining setting affects social and experiential aspects of eating. Findings may help determine whether subsidized community dining can function not only as food assistance, but also as community-based infrastructure that supports healthy aging.
Study design
- Primary purpose
- Health services research
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- Participants will complete both meal conditions in a randomized two-sequence, two-period crossover design. One sequence will complete 6 days of home eating followed by 6 days of subsidized community dining. The other sequence will complete 6 days of subsidized community dining followed by 6 days of home eating.
| Arm | Type | Receives |
|---|---|---|
| Home Eating Followed by Community Dining | Experimental | Behavioral: Subsidized Community Dining, Behavioral: Home EatingParticipants will complete 6 days of eating lunch and dinner at home, followed by 6 days of eating lunch and dinner at a subsidized community dining site. |
| Community Dining Followed by Home Eating | Experimental | Behavioral: Subsidized Community Dining, Behavioral: Home EatingParticipants will complete 6 days of eating lunch and dinner at a subsidized community dining site, followed by 6 days of eating lunch and dinner at home. |
Who may qualify
- Ages
- 60 to 79 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (9 listed)
- Community-dwelling adults aged 60 to 79 years
- Eligible for the local elderly meal subsidy
- Prediabetes or elevated glycemic risk, defined as HbA1c 5.7% to 6.4% or fasting plasma glucose 100 to 125 mg/dL
- Able to consume meals orally
- Able to walk independently without a walking aid
Key exclusion criteria (9 listed)
- HbA1c ≥6.5% or fasting plasma glucose ≥126 mg/dL
- Diagnosed diabetes
- Use of insulin or glucose-lowering medication
- Severe cognitive impairment
- Acute illness or recent hospitalization
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Subsidized Community DiningParticipants will eat lunch and dinner at a subsidized community dining site for 6 days. No walking target or exercise prescription will be given. After each meal, participants will be free to walk, sit, rest, remain at the dining site, or return home according to their usual preference. | Behavioural | Community Dining Followed by Home Eating, Home Eating Followed by Community Dining |
| Home EatingParticipants will eat lunch and dinner at home for 6 days using a standardized Chinese meal rotation designed to approximate the energy and macronutrient composition of the community dining meals. | Behavioural | Community Dining Followed by Home Eating, Home Eating Followed by Community Dining |
Primary outcome
Meal-Level 0- to 90-Minute Postprandial Glucose Incremental Area Under the Curve
Time frame: Study Days 2-13; fixed premeal baseline window through 90 minutes after completion of each lunch and dinner during the 12-day randomized meal-condition period.
Postprandial glucose incremental area under the curve (iAUC) will be calculated for each lunch and dinner from exported timestamped continuous glucose monitoring data using the trapezoidal rule. Baseline glucose will be defined as the mean continuous glucose monitoring value during the fixed 30-minute premeal baseline window. The postprandial calculation window will extend from meal completion through 90 minutes after meal completion.
9 secondary outcomes
Meal-Level 0- to 90-Minute Postmeal Step Count
Time frame: Study Days 2-13; from meal completion through 90 minutes after completion of each lunch and dinner during the 12-day randomized meal-condition period.
Meal-Level Peak Postprandial Glucose
Time frame: Study Days 2-13; from meal completion through 90 minutes after completion of each lunch and dinner during the 12-day randomized meal-condition period.
Meal-Level Time to Peak Postprandial Glucose
Time frame: Study Days 2-13; from meal completion through 90 minutes after completion of each lunch and dinner during the 12-day randomized meal-condition period.
Daily 24-Hour Mean Glucose
Time frame: Study Days 2-13; over each 24-hour analytic day during the 12-day randomized meal-condition period.
Daily Time Above Range
Time frame: Study Days 2-13; over each 24-hour analytic day during the 12-day randomized meal-condition period.
Daily Combined Postmeal Steps
Time frame: Study Days 2-13; summed across the lunch and dinner 90-minute postmeal windows on each 24-hour analytic day during the 12-day randomized meal-condition period.
Total Daily Steps
Time frame: Study Days 2-13; over each 24-hour analytic day during the 12-day randomized meal-condition period.
End-of-Condition Loneliness Score
Time frame: Baseline and end of each 6-day meal condition during the 12-day randomized meal-condition period.
End-of-Condition Meal-Condition Experience and Satisfaction Score
Time frame: End of each 6-day meal condition during the 12-day randomized meal-condition period.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 Jul 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Yang Zhang, PhD study chair
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Subsidized Community Dining and Home Eating in people with Prediabetes, run by Yang Zhang at 1 site in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 9 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 20 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Meng-Qi Zhen, MA (8618867413605, 53221639@qq.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Meal-Level 0- to 90-Minute Postprandial Glucose Incremental Area Under the Curve (time frame: Study Days 2-13; fixed premeal baseline window through 90 minutes after completion of each lunch and dinner during the 12-day randomized meal-condition period.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Jul 2026.