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Reduced calf muscle pump function is not explained by handgrip strength measurements.

Atefeh Ghorbanzadeh1, Abdi Abud2, David Liedl3

  • 1Department of Cardiovascular Diseases, Division of Vascular Medicine, Mayo Clinic, Rochester, MN; Gonda Vascular Center, Mayo Clinic, Rochester, MN.

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Summary

Handgrip strength (HGS) does not correlate with calf muscle pump function (CPF). HGS is not a reliable indicator for assessing reduced CPF, suggesting distinct underlying causes.

Keywords:
Calf muscle pumpDynamometerHand strengthPlethysmography

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Area of Science:

  • Vascular Medicine
  • Physiology

Background:

  • Reduced calf muscle pump function (CPF) is a significant risk factor for venous thromboembolism and mortality.
  • Understanding factors associated with CPF is crucial for risk stratification and management.

Purpose of the Study:

  • To investigate the relationship between handgrip strength (HGS) and calf muscle pump function (CPF).
  • To determine if HGS can serve as a surrogate marker for assessing reduced CPF.

Main Methods:

  • 115 patients underwent noninvasive venous studies, including air plethysmography to measure CPF.
  • Maximum HGS was measured bilaterally using a dynamometer.
  • Correlation analysis was performed between HGS and CPF measurements.

Main Results:

  • Reduced CPF was observed in a significant proportion of patients (46% right leg, 58% left leg).
  • Reduced HGS was prevalent (64.3% bilaterally, 20% unilaterally).
  • No significant correlation was found between HGS and CPF (Spearman's rho = 0.16 right, 0.10 left).

Conclusions:

  • Handgrip strength is not significantly correlated with calf muscle pump function.
  • HGS measurements are not an acceptable surrogate for assessing reduced CPF.
  • These findings suggest distinct pathophysiological mechanisms underlying HGS and CPF.