A Quantitative Analysis Linking Visual Assessment to Skin, Fat, and Muscle Properties

Structural Basis of Facial Sagging: A Quantitative Analysis Linking Visual Assessment to Skin, Fat, and Muscle Properties, and Development of a facial morphology and skin condition measurement method using bioelectrical impedance analysis and pressure sensors - Structural Basis of Facial Sagging: A Quantitative Analysis Linking Visual Assessment to Skin, Fat, and Muscle Properties

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000060199

Enrollment

240

Registered

2026-01-09

Start date

2025-07-28

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

healthy people

Interventions

None listed

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: (1) Healthy female participants aged between 20 and 79 years. (2) Participants with a body mass index (BMI)of 15.0 or higher and less than 30.0.

Exclusion criteria

Exclusion criteria: (1) History of cosmetic medical treatments . (2) Serious underlying diseases or facial skin disorders. (3) Pregnancy or breastfeeding. (4) Facial inflammation or wounds. (5) Other conditions judged inappropriate by the principal investigator.

Design outcomes

Primary

Measure	Time frame
Visual assessment score of facial sagging based on facial images	—

Secondary

Measure	Time frame
- Stratum corneum hydration - Transepidermal water loss (TEWL) - Skin viscoelasticity - Melanin index - erythema index - Skin color - Dermal collagen score and dermal thickness - Skin image analysis parameters - Nasolabial fold parameters - Ultrasonographic parameters - Skin glycation level - Body composition - Facial photographic assessment - Bioelectrical impedance values - Pressure sensor values - Questionnaire-based assessments	—

Measure

Time frame

- Stratum corneum hydration - Transepidermal water loss (TEWL) - Skin viscoelasticity - Melanin index - erythema index - Skin color - Dermal collagen score and dermal thickness - Skin image analysis parameters - Nasolabial fold parameters - Ultrasonographic parameters - Skin glycation level - Body composition - Facial photographic assessment - Bioelectrical impedance values - Pressure sensor values - Questionnaire-based assessments

—

Countries

Japan

Contacts

Public ContactKentaro Yamazaki

YA-MAN LTD. HYOJO Science Lab

k.yamazaki@ya-man.com0356657321

Outcome results