Higher skeletal muscle mass associates with higher measured glomerular filtration rate in healthy individuals
2024

Higher muscle mass linked to better kidney function in healthy people

Sample size: 888 publication Evidence: high

Author Information

Author(s): Westenberg Lisa B, van Londen Marco, Zorgdrager Marcel, de Borst Martin H, Viddeleer Alain R, Bakker Stephan J L, Pol Robert A

Primary Institution: University Medical Center Groningen, University of Groningen

Hypothesis

Higher muscle mass, quality, and 24-h CER levels are associated with higher mGFR.

Conclusion

The study found a significant association between higher skeletal muscle mass and higher kidney function in healthy individuals.

Supporting Evidence

  • Higher skeletal muscle area was positively correlated with 24-h urinary creatinine excretion rate.
  • Multivariable analyses showed that higher muscle mass was associated with higher mGFR.
  • Female sex and age were also significant determinants of mGFR.

Takeaway

If you have more muscle, your kidneys might work better. This study looked at healthy people and found that muscle helps kidneys do their job.

Methodology

This cross-sectional study used CT scans to measure skeletal muscle area and density, and assessed kidney function through mGFR measurements.

Potential Biases

The use of contrast in CT scans may have influenced muscle density measurements.

Limitations

The cross-sectional design limits causal inferences, and the study primarily included individuals of European descent, affecting generalizability.

Participant Demographics

The study included 888 healthy participants, with an average age of 53 years and 49% male.

Statistical Information

P-Value

<0.001

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.1093/ndt/gfae217

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