PD485 - BIOELECTRICAL AND BONE DENSITY MARKERS AS PREDICTORS OF MUSCULAR PERFORMANCE: A PROOF-OF-CONCEPT STUDY IN HEALTHY ADULTS

PD485

BIOELECTRICAL AND BONE DENSITY MARKERS AS PREDICTORS OF MUSCULAR PERFORMANCE: A PROOF-OF-CONCEPT STUDY IN HEALTHY ADULTS

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

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

Rationale: The relationship of phase angle with functional outcomes such as muscular strength and fatigue requires investigation. The interplay between bone mineral quality and muscular performance indicates musculoskeletal health. This study aimed to explore these relations in healthy adults across sexes.

Methods: On ethics approval and informed consent, 51 participants (29 f:22 m) participated. Phase angle was measured using InBody 770. Bone density (BQI, T-score) was measured using INUS S Ultrasound Bone Densitometer. Muscular performance was evaluated via maximal strength and fatigue testing of the upper and lower extremities. Statistical analyses were performed using Pearson’s correlations with the level of significance set at p < 0.05.

Results: Sample mean age was 28.2 years (SD = 9.0). Phase angle showed moderate positive correlations with maximal strength of both the lower and upper extremities. Bone density parameters (BQI, T-score) associated positively with maximal strength of the upper extremity. Moderate negative correlations were observed between bone density and muscle fatigue of the lower extremity. Sex-stratified analyses revealed that, in women, BQI and T-score correlated positively with maximal strength of both the upper and lower extremities. In men, phase angle correlated positively with maximal strength of the upper extremity, while maximal strength of the lower extremity correlated negatively with muscle fatigue. 

Conclusion: Our study suggests that phase angle and bone density parameters correlated with muscular strength and fatigue in healthy adults. Sex-stratified physiological links between cellular health, bone status, and functional performance were observed, providing indication for interplay between bioelectrical markers and musculoskeletal health. Further research in more diverse cohorts would be required for clinical significance.

Disclosure of Interest: None declared