Background
Obesity, sarcopenia, and sarcopenic obesity are increasingly prevalent in older adults and negatively affect health-related quality of life (HRQOL). While EuroQol-5 Dimension and Short Form-36 Health Survey are widely used HRQOL measures, they have limitations in sensitivity and cultural relevance. In contrast, the Health-related Quality of Life Instrument with 8 Items (HINT-8) is a preference-based instrument developed specifically for the Korean population, offering finer discrimination of physical, emotional, and social health domains.
Methods
This study analyzed data from 1,387 older adults (≥65 years) from the 2023 Korea National Health and Nutrition Examination Survey. Obesity was defined as body mass index ≥25 kg/m 2 , sarcopenia by Asian Working Group for Sarcopenia 2019 criteria, and sarcopenic obesity as having both conditions. Multiple linear regression was used to examine their independent effects on HRQOL, adjusting for potential confounders.
Results
Of the participants, 54.2% were classified as normal, 34.9% as obese, 9.8% with sarcopenia, and 1.1% with sarcopenic obesity. All three conditions were significantly associated with greater difficulty in stair climbing: obesity (B=0.223, P<0.001), sarcopenia (B=0.242, P<0.001), and sarcopenic obesity (B=0.338, P=0.048). Sarcopenia was also linked to impaired working ability and higher total HINT-8 scores. Sarcopenic obesity was associated with greater pain. And obesity was linked to slightly lower depression scores.
Conclusion
Obesity, sarcopenia, and sarcopenic obesity negatively impact HRQOL in older adults. Early detection and intervention are essential to improve quality of life and extend health-adjusted life expectancy.

Citations

• Lactobacillus gasseri BNR17 Improves Muscle Function and Body Composition in Older Adults
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  Food Supplements and Biomaterials for Health.2026;[Epub]     CrossRef
• The Relation Between Quality of Life, Functional Impairment and Nutritional Status in Older People
  Gabriela Cristina Chelu, Cătălina Raluca Nuță, Ovidiu Lucian Băjenaru, Lidia Băjenaru, Gabriel Ioan Prada
  Healthcare.2026; 14(8): 978.     CrossRef
• Overview of rehabilitation interventions for ESPEN/EASO-defined sarcopenic obesity: a scoping review
  Kosuke Suzuki, Masateru Hayashi, Yuichi Isaji, Hirotada Maeda, Katsuyoshi Tanaka, Takafumi Nasu, Koki Sasaki, Hayato Kunihara, Daisuke Sasaki, Wataru Okuyama, Yasuyuki Kurasawa, Takao Kaneko, Takashi Kitagawa
  European Geriatric Medicine.2025;[Epub]     CrossRef
• Lifestyle prescriptions for obesity treatment in primary care: a narrative review
  Ji-Hye Jung, YangIm Hur
  Ewha Medical Journal.2025; 48(4): e54.     CrossRef