The SAVOR Study: Appetite and Physiological Responses (SAVOR)
Seniors' Appetite: Vibrant Opportunities for Revitalization (SAVOR)
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Rina Quek, MSc
- Telefonnummer: 64074379
- E-mail: rina_quek@a-star.edu.sg
Undersøgelse Kontakt Backup
- Navn: Ashley Yu, BSc
- E-mail: ashley_yu@a-star.edu.sg
Studiesteder
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Singapore, Singapore
- Clinical Nutrition Research Centre
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Kontakt:
- Darel Toh, PhD
- Telefonnummer: 64074149
- E-mail: darel_toh@a-star.edu.sg
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Kontakt:
- Rina Quek, MSc
- E-mail: rina_quek@a-star.edu.sg
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-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Ældre voksen
Tager imod sunde frivillige
Beskrivelse
Inclusion Criteria:
- Postmenopausal female
- Aged 65-74 years
- Habitual breakfast consumer (consumes breakfast between 7am to 10am)
- Willingness to consume meals and follow intervention protocol
- English speaking
Exclusion Criteria:
- BMI ≥ 27.5
- Diagnosed with medical condition that may influence appetite or microbiome (e.g. diabetes, thyroid disorders, gastrointestinal diseases)
- Currently taking any medications or supplements that may influence appetite or the microbiome (e.g. probiotics, antibiotics, appetite stimulants/suppressants) one month prior to their first visit in consultation with study physician, PI and study team
- Following a special diet for weight management (e.g. low-calorie, low carbohydrate)
- History of bariatrics surgery
- Intentional attempt to change body weight or composition
- History of severe vasovagal syncope (blackouts or near faints) following blood draw
- Drug abuse within last 5 years
- Excessive alcoholic beverage consumption > 2 servings per day (1 serving defined as 360 mL beer, 150 mL wine or 45 mL distilled spirits)
- Smoking (cigarette, e-cigarette, cigar, pipe, vape)
- Engaging in habitual vigorous physical activity (as defined by physical activity questionnaire-PAQ)
- Loose teeth or jaw pain
- Not missing > 2 non-wisdom molars
- Involvement in other clinical studies that may influence the outcome of the study
- A study team member or their immediate family member
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Andet
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
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Eksperimentel: Chicken porridge
Rice congee with shredded chicken and vegetable oil
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This is a mixed meal tolerance test intended to elicit gut hormone responses reflective of real-world dietary patterns.
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Ad Libitum Lunch
Tidsramme: Participants will be given 30 minutes to consume the meal until they are comfortably full, 180 minutes after the start of the intervention.
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Participants will be asked to eat as much of the stir-fried beehoon as they want until they are comfortably full, to measure the exact calorie intake by weighing the food before and after eating.
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Participants will be given 30 minutes to consume the meal until they are comfortably full, 180 minutes after the start of the intervention.
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Palatability questionnaire
Tidsramme: Administered after consuming test meal and after consuming the ad libitum meal.
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Palatability appetite questionnaire, rated on a visual analogue scale is a psychometric assessment tool where participants rate their subjective sensory experience-such as taste, smell, or pleasantness-by marking a point along a continuous 100 mm line anchored by opposing extremes (e.g., "extremely unpleasant" to "extremely pleasant").
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Administered after consuming test meal and after consuming the ad libitum meal.
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Appetite hormones
Tidsramme: Blood samples will be collected at timepoints (t = -15 minute (baseline), 30, 60, 90, 120 and 180 minutes)
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GLP-1, PYY and Acyl-ghrelin will be used to measure hormones related to appetite.
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Blood samples will be collected at timepoints (t = -15 minute (baseline), 30, 60, 90, 120 and 180 minutes)
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Subjective Appetite Questionnaire
Tidsramme: Measurement is taken at t = -15 minute (baseline), 10, 30, 60, 90, 120 and 180 minutes
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A subjective appetite questionnaire utilizes a Visual Analogue Scale to quantify a person's current metabolic state by measuring four key sensations: hunger, fullness, desire to eat, and prospective food consumption.
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Measurement is taken at t = -15 minute (baseline), 10, 30, 60, 90, 120 and 180 minutes
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Gastric Ultrasound
Tidsramme: Measurements will be taken at t = -15 minute (baseline), 15, 45, 105 and 165 minutes
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Gastric ultrasound will measure the gastric emptying rate postprandially.
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Measurements will be taken at t = -15 minute (baseline), 15, 45, 105 and 165 minutes
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Stool collected using the OMNIgene and OMNImet
Tidsramme: Baseline stool sample will be collected once between screening and intervention day.
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Stool sample will be collected in the OMNIgene-GUT and OMNImet-GUT tube for measurements that may include microbiome profiling, untargeted and targeted metabolome (e.g.
bile acids and short-chain fatty acids profiling).
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Baseline stool sample will be collected once between screening and intervention day.
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Olfactory Acuity (SCENTinel)
Tidsramme: Baseline measurement administered once during screening, takes approximately 5-10 minutes
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Olfactory acuity will be assessed using a simple, non-invasive SCENTinel rapid smell test.
Participants will be presented with test cards containing various odors, and will be asked to detect, rate, and identify the odors.
The test assesses the participant's ability to perceive and recognize smells, providing information on their overall sense of smell.
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Baseline measurement administered once during screening, takes approximately 5-10 minutes
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Taste Acuity Test (WETT)
Tidsramme: Baseline measurement administered once during screening, takes approximately 10-15 minutes
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The Waterless Empirical Taste Test (WETT) is a sensory method for assessing how well participants can recognise and detect basic tastes.
Participants will taste pre-moistened, paper-based test strips for the five basic tastes: sweet, sour, salty, bitter, and umami.
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Baseline measurement administered once during screening, takes approximately 10-15 minutes
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Blood plasma (Cytokines)
Tidsramme: t = -15 minute (baseline), 30, 60, 90, 120, 180 minutes
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Blood samples may also be analyzed for indicators of inflammation including cytokines testing
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t = -15 minute (baseline), 30, 60, 90, 120, 180 minutes
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Blood plasma (Bile acids and short-chain fatty acids profiling)
Tidsramme: t= -15 minute (baseline), 30, 60, 90, 120, 180 minutes
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Blood samples collected may be used to analyse biomarkers related to nutrition and digestive health e.g.
bile acid and short-chain fatty acids profiling
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t= -15 minute (baseline), 30, 60, 90, 120, 180 minutes
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Bite Strength
Tidsramme: Baseline measurement that may be administered once during screening or test session, as schedule and equipment permits. Takes only a few minutes.
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Bite strength will be measured using a bite force device (non-invasive) that records the maximum force a participant can exert while biting.
Multiple measurements will be taken with rest periods in between to prevent fatigue.
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Baseline measurement that may be administered once during screening or test session, as schedule and equipment permits. Takes only a few minutes.
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Tongue Strength (Tongue Pressure)
Tidsramme: Baseline measurement that may be administered once during screening or test session, as schedule and equipment permits. Takes approximately 5 minutes.
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Tongue pressure will be measured using a device equipped with a disposable air-filled bulb placed between the tongue and the hard palate.
Participants will be instructed to press the bulb with their tongue as firmly as possible for a few seconds.
Multiple measurements will be taken with rest periods in between to ensure accuracy and prevent fatigue.
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Baseline measurement that may be administered once during screening or test session, as schedule and equipment permits. Takes approximately 5 minutes.
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Andre resultatmål
Andre resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Health and Lifestyle questionnaire
Tidsramme: Baseline measurement that is completed during screening visit
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This questionnaire is to evaluate the participant's eligibility for the study.
It consist of participant information, medical and health history, lifestyle and diet, physical activity.
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Baseline measurement that is completed during screening visit
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3-day food record
Tidsramme: Administered between screening and actual test session, to be completed on 2 weekdays and 1 weekend.
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A 3-day food record is a detailed diary where participants document everything they eat and drink over two weekdays and one weekend day to provide an accurate snapshot of their typical nutritional intake.
This is done using household measures (or digital scales), where exact portion sizes, cooking methods and brand names of all items are used.
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Administered between screening and actual test session, to be completed on 2 weekdays and 1 weekend.
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Gastrointestinal Symptom Rating Scale (GSRS)
Tidsramme: Baseline measurement administered once during screening.
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The Gastrointestinal Symptom Rating Scale (GSRS) is a validated 15-item questionnaire used to assess the presence and severity of common digestive issues across five key areas: abdominal pain, reflux, diarrhea, constipation, and indigestion.
Participants rate each symptom on a 7-point Likert scale-ranging from "no discomfort" to "very severe discomfort"-to provide a quantifiable measurement of their gastrointestinal well-being.
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Baseline measurement administered once during screening.
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Council on Nutrition Appetite Questionnaire (CNAQ)
Tidsramme: Baseline measurement administered once during screening, takes approximately 5-10 minutes
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The Council on Nutrition Appetite Questionnaire (CNAQ) is a brief, 8-item screening tool designed to predict future weight loss by assessing a participant's appetite and dietary habits.
It asks about sensations like hunger, how quickly a participant feel full, and how food tastes to determine if a participant is at risk for nutritional deficiencies or significant weight changes over the coming months.
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Baseline measurement administered once during screening, takes approximately 5-10 minutes
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Pittsburgh Sleep Quality Index (PSQI)
Tidsramme: Baseline measurement administered once during screening, takes approximately 5-10 minutes
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The Pittsburgh Sleep Quality Index (PSQI) is a validated 19-item questionnaire used to measure sleep quality and disturbances over a one-month timeframe.
It evaluates seven key areas-including sleep duration, how long it takes to fall asleep, sleep disruptions, and daytime tiredness-to generate a single overall score that differentiates between "good" and "poor" sleepers in clinical research.
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Baseline measurement administered once during screening, takes approximately 5-10 minutes
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Geriatric Depression Scale (GDS)
Tidsramme: Administered once during screening, takes approximately 5 minutes
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The Geriatric Depression Scale (GDS) is a 30-item questionnaire-often shortened to a 15-item version-specifically designed to screen for depression in older adults.
Unlike general depression scales, it uses a simple "yes" or "no" format and focuses primarily on psychological and mood-related symptoms rather than physical complaints (like aches or fatigue), which can often overlap with normal aging or other medical conditions.
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Administered once during screening, takes approximately 5 minutes
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Dutch Eating Behavior Questionnaire (DEBQ)
Tidsramme: Baseline measurement administered once during screening, takes approximately 10 minutes
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The Dutch Eating Behavior Questionnaire (DEBQ) is a 33-item psychometric scale used to assess the distinct psychological factors and eating styles that can lead to overeating or weight gain.
It breaks eating behaviors down into three core subscales - emotional eating, external eating and restrained eating.
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Baseline measurement administered once during screening, takes approximately 10 minutes
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Leeds Food Preference Questionnaire (LFPQ)
Tidsramme: Baseline measurement administered once during screening, takes approximately 10-15 minutes
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The Leeds Food Preference Questionnaire (LFPQ) is a computer-based tool used in behavioral research to measure different psychological components of food preference and appetite.
It uses a series of food images to evaluate two distinct aspects of food reward: explicit liking and implicit wanting.
The tool categorizes these preferences across different food characteristics, specifically comparing high-fat vs. low-fat foods, and sweet vs. savory tastes.
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Baseline measurement administered once during screening, takes approximately 10-15 minutes
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Three-Factor Eating Questionnaire (TFEQ)
Tidsramme: Baseline measurement administered once during screening, takes approximately 10 minutes
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The Three-Factor Eating Questionnaire (TFEQ) is a validated psychometric tool used to measure three distinct dimensions of human eating behavior and cognitive dietary control.
It evaluates eating habits across three primary subscales: cognitive restraint, disinhibition and hunger
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Baseline measurement administered once during screening, takes approximately 10 minutes
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International Physical Activity Questionnaire (IPAQ)
Tidsramme: Baseline measurement administered once during screening, takes approximately 10 minutes
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The International Physical Activity Questionnaire (IPAQ) is a validated tool that measures a person's physical activity levels over a 7-day period.
It records the total time spent across four distinct intensities: vigorous activity (like running or heavy lifting), moderate activity (like steady cycling), walking, and weekday sitting time.
These tracked minutes are converted into a standard metabolic score (MET-minutes/week), which is then used to classify an individual's overall physical activity level into one of three distinct categories: Low, Moderate, or High.
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Baseline measurement administered once during screening, takes approximately 10 minutes
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Darel Toh, PhD, Clinical Nutrition Research Centre
Publikationer og nyttige links
Generelle publikationer
- Sturm K, MacIntosh CG, Parker BA, Wishart J, Horowitz M, Chapman IM. Appetite, food intake, and plasma concentrations of cholecystokinin, ghrelin, and other gastrointestinal hormones in undernourished older women and well-nourished young and older women. J Clin Endocrinol Metab. 2003 Aug;88(8):3747-55. doi: 10.1210/jc.2002-021656.
- Dagbasi A, Warner J, Catterall V, Smith K, Crabtree DR, Carroll B, Frost G, Holliday A. Augmented gut hormone response to feeding in older adults exhibiting low appetite. Appetite. 2024 Oct 1;201:107415. doi: 10.1016/j.appet.2024.107415. Epub 2024 May 16.
- Atalayer D, Astbury NM. Anorexia of aging and gut hormones. Aging Dis. 2013 Oct 1;4(5):264-75. doi: 10.14336/AD.2013.0400264.
- Dagenais S, Fielding RA, Clark S, Cantu C, Prasad S, Groarke JD. Anorexia in Medicare Fee-for-Service Beneficiaries: A Claims-Based Analysis of Epidemiology and Mortality. J Nutr Health Aging. 2023;27(3):184-191. doi: 10.1007/s12603-023-1882-4.
- Morley JE. Peptides and aging: Their role in anorexia and memory. Peptides. 2015 Oct;72:112-8. doi: 10.1016/j.peptides.2015.04.007. Epub 2015 Apr 17.
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 2025-133
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
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