A Study of Body Composition as a Predictor of Muscle Quality and Endurance- A Cross-Sectional Study

Abstract

Background: The alarming rise in sarcopenic obesity is compromising the quality of life for millions, underscoring the urgent need to unravel the factors contributing to muscle decline. Sarcopenic obesity, characterized by the concurrent loss of muscle mass and accumulation of excess fat, is a growing public health concern. This condition, often exacerbated by aging and poor lifestyle, negatively impacts muscle quality and contributes to a multitude of comorbidities. Previous research has demonstrated a significant association between obesity and reduced muscle strength compared to non-obese individuals, hindering activities of daily living such as stair climbing and walking. This study aims to investigate the predictive role of body composition on muscle quality and endurance.
Methods: This cross-sectional study was carried out on 385 healthy male and female subjects aged between 18-67 years. The staff and students of JMMC and RI were selected for the study based on the inclusion and exclusion criteria, after obtaining the Institutional Ethical Clearance. Handgrip strength (HGS) and endurance (HE) was measured using handgrip dynamometer while body composition was assessed using Omron body fat analyser. Comparisons were done between age and gender. Statistical analysis was done using Independent T test, One-Way ANOVA and Mann Whitney test on SPSS version 20.
Results: As age advances, there is statistically significant increase in BMI and BFP (body fat percentage) in both the genders. Increase in BMI and BFP is more pronounced in females with significant decrease in muscle mass percentage and HGS. Females had significant decline in endurance in all age groups (p<0.001).
Conclusion: As the BMI and BFP increase with age, the muscle quality deteriorates. Females have more adiposity, poor muscle strength and endurance even though BMI remains same in both genders. To identify the early onset of decrease in muscle quality and endurance, a combination of parameters like BMI, BFP, HGS and HE should form a part of routine clinical screening.