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2026 Vol.33, Issue 4 Preview Page

Research Article

Associations of Total Physical Activity and Moderate-to-Vigorous Physical Activity with Phase Angle in Korean Adults: Findings from the 2024 Korea National Health and Nutrition Examination Survey

한국 성인의 총신체활동량 및 중 ∙ 고강도 신체활동과 위상각 간의 관련성: 2024년 국민건강영양조사 자료 분석

Boo-Geun Hwang1*
황 부근1*
1Department of Sport Rehabilitation, Tongmyong University, Busan, Korea
1동명대학교 스포츠재활학과
*Corresponding Author
31 August 2026. pp. 417-425
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Abstract

This study investigated the associations of total physical activity (TPA) and moderate-to-vigorous physical activity (MVPA) with phase angle (PhA) among Korean adults. This cross-sectional study included 2,375 adults aged 19–64 years from the 2024 Korea National Health and Nutrition Examination Survey (KNHANES). Physical activity was assessed using the KNHANES physical activity questionnaire and expressed as metabolic equivalent task (MET)-min/week. TPA was categorized into sex-specific quartiles, whereas MVPA was classified as inactive (0 MET-min/week), insufficiently active (1–599 MET-min/week), and sufficiently active (≥600 MET-min/week). PhA was measured using bioelectrical impedance analysis. Complex sample general linear models and complex sample linear regression analyses were performed after adjusting for age, body mass index, smoking status, alcohol consumption, comorbidity, and muscle-strengthening exercise participation. TPA was not significantly associated with PhA in either men or women. In contrast, MVPA showed sex-specific associations with PhA. In men, a significant positive linear trend in PhA across increasing MVPA levels remained after adjustment for all covariates, including muscle-strengthening exercise (p for trend = .038). In women, the positive linear trend observed in Model 1 was no longer significant after additional adjustment for muscle-strengthening exercise, although the insufficiently active group had a significantly higher PhA than the inactive group. These findings suggest that physical activity intensity may be more relevant to PhA than total physical activity volume, particularly among Korean men.

Keywords
Phase angle
Physical activity
Moderate-to-vigorous physical activity
Muscle quality
Bioelectrical impedance analysis
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Information
  • Publisher :The Korean Society of Living Environmental System
  • Publisher(Ko) :한국생활환경학회
  • Journal Title :Journal of The Korean Society of Living Environmental System
  • Journal Title(Ko) :한국생활환경학회
  • Volume : 33
  • No :4
  • Pages :417-425
  • Received Date : 2026-06-28
  • Revised Date : 2026-07-16
  • Accepted Date : 2026-08-06
  • DOI :https://doi.org/10.21086/ksles.2026.8.33.4.417
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