PD064 - DIETARY PATTERNS AS PREDICTORS OF PHASE ANGLE: A PROOF-OF-CONCEPT STUDY USING BIOELECTRICAL IMPEDANCE ANALYSIS

PD064

DIETARY PATTERNS AS PREDICTORS OF PHASE ANGLE: A PROOF-OF-CONCEPT STUDY USING BIOELECTRICAL IMPEDANCE ANALYSIS

S. B. Berkemeyer^1,*, K. Harre¹, S. A. Veltmann², D. Möller², C. Rolf³

¹NutritionLab, ²Motion Lab, Hochschule Osnabrück, Osnabrueck, ³Internal Medicine, St. Marien-Hospital gGmbH, Friesoythe, Germany

Rationale: The specific relationship between dietary patterns and phase angle remains poorly understood. This investigation aimed to address this gap by examining how different dietary patterns correlate with this key marker of cellular health.

Methods: On ethics approvial and informed consent 61 participants completed self-reported questionnaires. Dietary pattern was categorized vegan (1), vegetarian (2), pescatarian (3), and omnivore (4) along with age and sex. Phase angle was measured using InBody 770. A priori power analysis indicated a sample size of 55. Muscle strength and fatigue were assessed, correlations and multiple linear regressions were conducted using JASP 0.19.1. A sensitivity analysis was conducted for pilot sample of ten and alpha was set at p < 0.05.

Results: The final sample (35 f: 26 m) had a mean age of 27.3 y (SD = 8.5). Phase angle correlated with dietary pattern and no significant correlation was observed with age. Regression model with diet and sex trend-level association for diet (adj. R² = 0.33). Model for diet and age reported both significant (adj. R² = 0.09). Final model reported diet, age, and sex as significant (adj. R² = 0.38). Sensitivity analyses largely confirmed these findings: diet and age remained significant, and sex indicated a negative, non-significant trend (adj. R² = 0.70).

Conclusion: This study demonstrates association between dietary patterns and phase angle suggesting that more omnivorous diets had higher phase angles. The magnitude of this relation stabilized as the sample size increased to 61 participants, and the relationship remained robust. These findings provide a foundation for future research on how specific dietary compositions influence phase angle as measured by bioelectrical impedance.

Disclosure of Interest: None declared