Abstract
Purpose
This study aimed to examine the prevalence of hyperuricemia in association with relative grip strength and leg strength in Korean Elderly.
Methods
We studied cross-sectional analysis with 1,894 rural adults (40−88 years old), who were surveyed for 7 years from 2007 to 2014. Grip strength was measured by using Takei grip strength dynamometer. Leg strength was measured by using Takei leg strength dynamometer. Hyperuricemia was defined by examining serum uric acid concentration (male ≥7 mg/dL, female ≥6 mg/dL). Logistic regression was conducted to evaluate the association of grip strength and leg strength with hyperuricemia (p<0.05).
Results
Subjects who reported high level of relative grip strength had a significantly lower odds ratio (OR) of hyperuricemia than subjects who reported low level of relative grip strength (OR, 0.37; 95% confidence interval [CI], 0.16−0.84). When it comes to sex, subjects both high relative muscle strength are significantly lower multivariate-adjusted OR of hyperuricemia than subjects both low relative muscle strength in male (OR, 0.52; 95% CI, 0.29−0.95) and female (OR, 0.47; 95% CI, 0.26−0.95). Additionally, senior group (age ≥65 years), who have low relative grip strength and high relative leg strength, was only significantly associated with the prevalence of hyperuricemia (OR, 0.43; 95% CI, 0.19−0.98).
Conclusion
The relationship between hyperuricemia and relative grip strength may be mediated through decreased estimated glomerular filtration ratio. Therefore, muscle strength is important factor in prevention of renal vascular dysfunction which is a risk factor of hyperuricemia, and resistance exercise is needed to improve muscle strength.
References
1. Gagliardi AC, Miname MH, Santos RD. Uric acid: a marker of increased cardiovascular risk. Atherosclerosis. 2009; 202:11–7.
2. Trifiro G, Morabito P, Cavagna L, et al. Epidemiology of gout and hyperuricaemia in Italy during the years 2005–2009: a nationwide population-based study. Ann Rheum Dis. 2013; 72:694–700.
3. Lim S, Shin H, Song JH, et al. Increasing prevalence of metabolic syndrome in Korea: the Korean National Health and Nutrition Examination Survey for 1998–2007. Diabetes Care. 2011; 34:1323–8.
4. Zimmet P, Magliano D, Matsuzawa Y, Alberti G, Shaw J. The metabolic syndrome: a global public health problem and a new definition. J Atheroscler Thromb. 2005; 12:295–300.
5. Newman AB, Kupelian V, Visser M, et al. Strength, but not muscle mass, is associated with mortality in the health, aging and body composition study cohort. J Gerontol A Biol Sci Med Sci. 2006; 61:72–7.
6. Lauretani F, Russo CR, Bandinelli S, et al. Age-associated changes in skeletal muscles and their effect on mobility: an operational diagnosis of sarcopenia. J Appl Physiol (1985). 2003; 95:1851–60.
7. Visser M, Deeg DJ, Lips P, Harris TB, Bouter LM. Skeletal muscle mass and muscle strength in relation to lower-extremity performance in older men and women. J Am Geriatr Soc. 2000; 48:381–6.
8. Visser M, Goodpaster BH, Kritchevsky SB, et al. Muscle mass, muscle strength, and muscle fat infiltration as predictors of incident mobility limitations in well-functioning older persons. J Gerontol A Biol Sci Med Sci. 2005; 60:324–33.
9. Schaap LA, Pluijm SM, Deeg DJ, et al. Higher inflammatory marker levels in older persons: associations with 5-year change in muscle mass and muscle strength. J Gerontol A Biol Sci Med Sci. 2009; 64:1183–9.
10. Leong DP, Teo KK. Predicting cardiovascular disease from handgrip strength: the potential clinical implications. Expert Rev Cardiovasc Ther. 2015; 13:1277–9.
11. Eknoyan G, Lameire N, Eckardt KU, et al. KDOQI US commentary on the 2012 KDIGO clinical practice guideline for the evaluation and management of CKD: summary of recommendation statements. Kidney Int Suppl. 2013; 3:5–14.
12. Johnson RJ, Kang DH, Feig D, et al. Is there a pathogenetic role for uric acid in hypertension and cardiovascular and renal disease? Hypertension. 2003; 41:1183–90.
13. Huang C, Niu K, Kobayashi Y, et al. An inverted J-shaped association of serum uric acid with muscle strength among Japanese adult men: a cross-sectional study. BMC Musculoskelet Disord. 2013; 14:258.
14. Lawman HG, Troiano RP, Perna FM, Wang CY, Fryar CD, Ogden CL. Associations of relative handgrip strength and cardiovascular disease biomarkers in U.S. adults, 2011–2012. Am J Prev Med. 2016; 50:677–83.
15. Bouchard DR, Janssen I. Dynapenic-obesity and physical function in older adults. J Gerontol A Biol Sci Med Sci. 2010; 65:71–7.
16. Rantanen T, Harris T, Leveille SG, et al. Muscle strength and body mass index as longterm predictors of mortality in initially healthy men. J Gerontol A Biol Sci Med Sci. 2000; 55:M168–73.
17. Choquette S, Bouchard DR, Doyon CY, Senechal M, Brochu M, Dionne IJ. Relative strength as a determinant of mobility in elders 67–84 years of age. A nuage study: nutrition as a determinant of successful aging. J Nutr Health Aging. 2010; 14:190–5.
18. Beavers KM, Beavers DP, Serra MC, Bowden RG, Wilson RL. Low relative skeletal muscle mass indicative of sarcopenia is associated with elevations in serum uric acid levels: findings from NHANES III. J Nutr Health Aging. 2009; 13:177–82.
19. Taylor AC, McCartney N, Kamath MV, Wiley RL. Isometric training lowers resting blood pressure and modulates autonomic control. Med Sci Sports Exerc. 2003; 35:251–6.
20. Febbraio MA, Pedersen BK. Muscle-derived interleukin-6: mechanisms for activation and possible biological roles. FASEB J. 2002; 16:1335–47.
22. Kozakai R, Ando F, Kim HY, Yuki A, Otsuka R, Shimokata H. Sex-differences in age-related grip strength decline: a 10-year longitudinal study of community-living middle-aged and older Japanese. J Phys Fit Sports Med. 2016; 5:87–94.
Table 1.
Table 2.
Multivariable Model 1 adjusted leg strength, age, sex, history of hypertension, CRP, exercise status, fasting glucose, serum total protein, lean body mass; Model 2, model 1 plus adjusted for meat intake, drinking status; Model 3, model 2 plus adjusted for status of CKD; Model 4, model 3 plus adjusted for interaction of CKD and grip. OR: odds ratio, CI: confidence interval, CRP: C-reactive protein, CKD: chronic kidney disease.