Effects of the EatWelLog App on Enhancing Diet Management for Older Adults With Sarcopenic Obesity

NCT07867795 | Not Yet Recruiting

• 1 other identifier: HSEARS20251010003-01
• Study Type: interventional
• Target: 212
• Locations: 1 country
• Sites: 1

Brief Summary

Background: Sarcopenic obesity (SO) affects 10% of older adults increased to 23% of those 75+, raising health risks and health cost. Objectives: We will evaluate the effects of the EatWelLog App-based intervention on SO status (primary outcome), and nutritional and exercise parameters (secondary outcomes) by enhancing self-management and sustaining diet adherence among the m-Health group using the App versus the control group. Following verification of the intervention's effectiveness, we will analyse its cost-effectiveness. Design and subjects: Randomized controlled trial with 212 older people with SO. Interventions: The m-Health group will receive an 8-week supervised nutrition and exercise programme, incorporating the EatWelLog App for dietary management during and after the supervised programme. The control group will receive the same programme without the App. Main outcome measures and analysis: The primary outcome is SO status evaluated using handgrip strength, muscle mass, body fat mass, and physical performance. Secondary outcomes include nutritional status, quality of life and exercise adherence. The App intervention's costeffectiveness will be analysed. Expected results: The m-Health group should demonstrate greater, more sustained improvements in SO and secondary outcomes compared to the control group at Week 8, and at the 3-, 6-, 9-, and 12-month follow-ups. Clinical significance: The EatWelLog App could provide customized support, enhance dietary adherence, and improve long-term outcomes, offering a novel, economical approach to SO management.

Conditions

Sacropenic Obesity

Keywords

Sacropenic Obesity; m-health; dietary intervention; behaviour change; exercise

Outcome Measures

Primary Outcomes (6)

• Muscle Strength

  Handgrip strength (kg) will be measured by using a Takei TKK5401 digital hand dynamometer.

  From baseline (T0) to 8 weeks (T1), 3 months (T2), 6 months (T3), 9 months (T4), and 12 months (T5) after completing the program

• Muscle Quantity

  Muscle mass (kg) will be measured by using bioelectrical impedance analysis (InBody S10, Korea).

  From baseline (T0) to 8 weeks (T1), 3 months (T2), 6 months (T3), 9 months (T4), and 12 months (T5) after completing the program.

• Body Mass Index (BMI)

  The weight and height will be combined to report BMI in kg/m\^2.

  From baseline (T0) to 8 weeks (T1), 3 months (T2), 6 months (T3), 9 months (T4), and 12 months (T5) after completing the program.

• Waist Circumference

  Waist circumference was taken as the minimum circumference between the umbilicus and xiphoid process and measured to the nearest 0.5 cm.

  From baseline (T0) to 8 weeks (T1), 3 months (T2), 6 months (T3), 9 months (T4), and 12 months (T5) after completing the program.

• Fat Mass

  Fat mass (kg) will be measured by using bioelectrical impedance analysis (S10, Korea).

  From baseline (T0) to 8 weeks (T1), 3 months (T2), 6 months (T3), 9 months (T4), and 12 months (T5) after completing the program.

• The Short Physical Performance Battery (SPPB) scale

  The Short Physical Performance Battery (SPPB) scale will be used to measure physical function, which is a well-established tool for monitoring function in older people, which contains three kinds of assessments: stand for 10 seconds with feet in 3 different positions, 3-meter or 4-meter walking speed test, and time to rise from a chair for five times. The scores of SPPB range from 0 (worst performance) to 12 (best performance). The minimum and maximum values are 0 and 10 respectively. Higher scores mean a better performance.

  From baseline (T0) to 8 weeks (T1), 3 months (T2), 6 months (T3), 9 months (T4), and 12 months (T5) after completing the program.

Secondary Outcomes (8)

• Mini Nutritional Assessment (MNA) Short-form

  From baseline (T0) to 8 weeks (T1), 3 months (T2), 6 months (T3), 9 months (T4), and 12 months (T5) after completing the program.

• Health Action Process Approach (HAPA) Nutrition Self-efficacy Scale

  From baseline (T0) to 8 weeks (T1), 3 months (T2), 6 months (T3), 9 months (T4), and 12 months (T5) after completing the program.

• Dietary Quality Index-International (DQI-I)

  From baseline (T0) to 8 weeks (T1), 3 months (T2), 6 months (T3), 9 months (T4), and 12 months (T5) after completing the program.

• EuroQoL 5D-5L (EQ-5D-5L)

  From baseline (T0) to 8 weeks (T1), 3 months (T2), 6 months (T3), 9 months (T4), and 12 months (T5) after completing the program.

• Diet Adherence

  From baseline (T0) to 8 weeks (T1), 3 months (T2), 6 months (T3), 9 months (T4), and 12 months (T5) after completing the program.

Study Arms (2)

M-Health Group

EXPERIMENTAL

M-Health group will receive an 8-week supervised nutrition and exercise programme, and training to incorporate the EatWelLog App for daily dietary management.

Behavioral: Dietary Modification programme; Behavioral: Exercise Training; Behavioral: The EatWelLog App

Control Group

SHAM COMPARATOR

Control group will receive the identical 8-week supervised programme without using the EatWelLog App.

Behavioral: Dietary Modification programme; Behavioral: Exercise Training

Interventions

Dietary Modification programme BEHAVIORAL

• This programme aims to improve the participants' self-efficacy in adopting our previously validated diet regimen\*. It includes 3 personalized, one-hour, face-to-face sessions in weeks 1, 3 and 7 conducted by a dietitian plus 5 dietary related health talks in the remaining weeks (i.e. Week 2, 4-6, 8) * Dietary Regimen: a moderate hypocaloric diet reduces daily energy intake by 12% for steady weight loss while preserving muscle mass9. To address the reduced anabolic response in older people, a protein intake of 1.5 g/kg of body weight per day is recommended, with leucine-rich animal proteins prioritized to enhance muscle development9

Control Group; M-Health Group

Exercise Training BEHAVIORAL

Participants will receive an 8-week exercise training during the programme. The training combines resistance and aerobic exercises to increase muscle mass and strength while reducing fat in individual with SO. Participants will receive a YouTube link and pamphlet detailing exercises to follow 30 minutes daily, five times a week, during and after the programme.

Control Group; M-Health Group

The EatWelLog App BEHAVIORAL

Participants in the M-health group will be instructed to use the EatWelLog App for daily diet self-management. This App supports participants with SO by providing a structured approach to managing a diet that encourages steady weight loss while maintaining muscle mass. Nutritional recommendations will be also be provided according to individuals' demographic information.

M-Health Group

Eligibility Criteria

• Age: 50 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Community-dwelling older people aged \> 50 years;
• Meeting the diagnostic criteria of sarcopenia according to the Asian Sarcopenia Working Group (ASWG) which include:
• Sarcopenia refers to the fulfillment both of the following criteria: For participants aged 50-64: low handgrip strength \< 34 kg for men and \< 20 kg for women, low muscle quality as reflected by low appendicular skeletal muscle mass (ASM) /height squared \< 7.6 kg/m2 for men and \<5.7 kg/m2 for women. For participants aged 65 or above: handgrip strength \<28kg (men) and \<18 kg (women); appendicular skeletal muscle mass (ASM)/ height2 \<7 kg/m2 (men) and \<5.7 kg/m2 (women).
• Obesity refers to the fulfillment of one of the following criteria: Body Mass Index (BMI) ≥ 25kg/m2 or waist circumference ≥ 90 cm in men and ≥ 80 cm in women, or percentage of body fat \> 30%.
• Able to communicate, read, and write in Chinese without significant hearing and vision problems to ensure that our instructions are understood; and • Own a smartphone, and able to access the internet at home or elsewhere.

You may not qualify if:

• With any form of disease or condition that might affect food intake and digestion (such as severe heart or lung diseases, renal diseases, diabetes, cancer, or autoimmune diseases);
• Taking medications that may influence eating behaviour, digestion, or metabolism (such as weight loss medication);
• With alcohol use disorder as defined by DSM-5, potentially hindering dietary behaviour changes; and
• Having any medical implant device such as a pacemaker, because low-level currents will flow through the body when doing the bioelectric impedance analysis (BIA by InBody S10, Korea), which may cause the device to malfunction.
• Have a Functional Ambulatory Classification (FAC) score of \<7, indicating impaired mobility to participate in exercise training.

Sponsors & Collaborators

• The Hong Kong Polytechnic University: lead

Study Sites (1)

The Hong Kong Polytechnic University

Hong Kong, Hong Kong

Location

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MeSH Terms

Conditions

Motor Activity

Interventions

Exercise

Condition Hierarchy (Ancestors)

Behavior

Intervention Hierarchy (Ancestors)

Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Officials

• Justina Liu, PhD

  The Hong Kong Polytechnic University

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Justina Liu, PhD

CONTACT

+852 2766 4097; justina.liu@polyu.edu.hk

Jackie Yeung

CONTACT

+852 2766 6427; jackie.yeung@polyu.edu.hk

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Masking Details: A biostatistician who will randomize group assignment as well as final data analyses
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Head & Professor

Model Details: A two-arm, assessor-blinded, parallel design randomized control trial (RCT) consisting of a M-health and a control group will be adopted to evaluate the effectiveness of the EatWelLog App in improving older adults' sarcopenic obesity (SO) status and other SO-related elements.

Study Record Dates

• First Submitted: October 5, 2026
• First Posted: October 9, 2026
• Study Start: October 1, 2026
• Primary Completion (Estimated): March 31, 2029
• Study Completion (Estimated): September 30, 2029
• Last Updated: October 9, 2026

Record last verified: 2026-10

Data Sharing

• IPD Sharing: Will not share

Locations

HK (1)