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GLADS is a cross-sectional, observational study assessing free-living diet, physical activity, sleep, and glucose profile over a 2-week period in healthy adult men and women.
Monitoring free-living lifestyle behaviors can provide important information on behavioral determinants of health. New technologies have improved accessibility of ambulatory assessment of diet, biomarkers, physical activity, and sleep. The study will assess the effects of free-living diet assessed by questionnaire and sleep and physical activity measured by actigraphy on interstitial glucose measured by continuous glucose monitoring in healthy adult men and women over a 2-week period.
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Observational | Other | Observation of diet, physical activity, sleep and interstitial glucose |
| Measure | Description | Time Frame |
|---|---|---|
| Glucose | Mean, fasting, post-prandial measured by continuous glucose monitoring | 2 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Sleep duration | Measured by actigraphy | 2 weeks |
| Sleep fragmentation | Measured by actigraphy | 2 weeks |
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Inclusion Criteria:
Exclusion Criteria:
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Adult men and women willing to record food intake with their smartphone, complete online questionnaires, and wear body sensors to measure physical activity, sleep, and glucose.
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| Name | Affiliation | Role |
|---|---|---|
| Blandine Laferrere, MD, PhD | Columbia University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Russ Berrie Medical Science Pavilion | New York | New York | 10032 | United States |
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| ID | Term |
|---|---|
| D044882 | Glucose Metabolism Disorders |
| ID | Term |
|---|---|
| D008659 | Metabolic Diseases |
| D009750 | Nutritional and Metabolic Diseases |
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| ID | Term |
|---|---|
| D057832 | Watchful Waiting |
| ID | Term |
|---|---|
| D017063 | Outcome Assessment, Health Care |
| D010043 | Outcome and Process Assessment, Health Care |
| D011787 | Quality of Health Care |
| D006298 | Health Services Administration |
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| Diet composition | Carbohydrates, fats, proteins assessed by dietary recall | 2 weeks |