P544 - RELATIONSHIP BETWEEN AGE-RELATED MUSCLE STRENGTH LOSS AND PHYSICAL PERFORMANCE.

P544

RELATIONSHIP BETWEEN AGE-RELATED MUSCLE STRENGTH LOSS AND PHYSICAL PERFORMANCE.

Y. D. C. Méndez-Romero¹, C. García-Vargas^2,*, M. Rodríguez-Gil¹, A. Lozornio-Jimenez de la Rosa ³, L. M. Romero-Manrique¹, R. D. C. Castillo-Valenzuela ⁴, A. N. Mendoza-Hernández¹

¹Colegio Mexicano de Nutrición Clínica y Terapia Nutricional, ²Hospital Médica Campestre , ³Hospital Christus Mugerza Altagracia , ⁴Universidad Virtual del Estado de Guanajuato, León, Mexico

Rationale: Muscle strength and physical performance are simple and cost-effective clinical evaluation parameters in the management of sarcopenia.¹ Low handgrip strength in healthy older adults increases functional decline and morbimortality at an older age.² The objective was to determine the relationship between handgrip strength and physical performance.

Methods: Observational, population-based, cross-sectional, prospective, descriptive study, with purposive convenience sampling and informed consent. Demographic data and measurements of weight, height, BMI, Timed Up and Go test (TUG), and strength measured with a Jamar hydraulic hand dynamometer (SKU 30-15009) were collected. Age-adjusted BMI was calculated according to WHO and SENPE parameters. Descriptive statistics for means, standard deviations, proportions, and linear regression model were used, with significance level (p<0.05, 95% confidence interval) performed in Python 3.11.

Results: Once performing analytical statistics, the age groups between men and women were evaluated, showing the relationship between age in years and the decrease in grip strength. The variables of age and grip strength at the life stage were reviewed by a linear regression model, finding R2=0.65 y p<0.05,(fig 1), representing a loss of strength per year for men of 0.41kg/year and 0.18kg/year for women. Similarly, with a 1 unit increase in TUG, grip strength decreases by 1.41kg.(fig 1)

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Conclusion: Muscle strength decreased with age, and physical performance was lower with the decline in handgrip strength. Both represent simple and accessible measurements in clinical practice. KEYWORDS: Handgrip strength, TUG, physical performance.

References: 1.- Sánchez Torralvo, et al. (2018).  Nutricion hospitalaria, 35(1), 98–103. 
2.- Sousa-Santos, et al. (2017).  BMC geriatrics, 17(1), 238

Disclosure of Interest: None declared