Letter to the Editor| Volume 22, ISSUE 4, P881-882, April 2021

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Should We Pucker Up and Welcome a Potential New Assessment of Muscle Function?

Published:February 03, 2021DOI:
      The interesting pilot study completed by Abe et al
      • Abe T.
      • Wong V.
      • Spitz R.W.
      • et al.
      Can lip strength be used as a surrogate measure of handgrip strength? A pilot test.
      examined the relationships between lip compression strength (LCS) and handgrip strength (HGS) in 98 healthy adults. With maximal effort, participants compressed their lips on an oral performance instrument for measuring LCS and squeezed a handgrip dynamometer for the measurement of HGS. This pilot study revealed that LCS and HGS were moderately correlated in the overall sample [r = 0.62; 95% confidence interval (CI) 0.47, 0.72]. Although the strength of the correlations between LCS and HGS decreased when the overall sample was stratified by sex (men: r = 0.48; CI 0.22, 0.67; women: r = 0.29; CI 0.01, 0.52), it is possible that the lower sampling from the sex stratification drove the strength of these findings downwards. The authors generally concluded that a relationship may exist between LCS and HGS, and more research is needed for determining the utility of LCS, especially in older populations.
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