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Daily leg swelling, even in healthy individuals, is common. Surprisingly, upper leg volume increased more than lower leg volume, indicating subtle occupational edema (OE) can occur without obvious symptoms.

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Area of Science:

  • Physiology
  • Human anatomy
  • Edema research

Background:

  • Assessing daily volume changes in legs of healthy individuals.
  • Investigating subtle volume shifts related to daily activities.
  • Understanding normal leg volume fluctuations in the absence of venous or lymphatic disorders.

Purpose of the Study:

  • To comparatively evaluate volume changes in the whole leg (WLv), lower leg (LLv), and upper leg (ULv) due to daily occupation.
  • To establish baseline volume changes in healthy subjects.
  • To differentiate between normal physiological volume changes and early signs of occupational edema.

Main Methods:

  • Water displacement volumetry (WDV) used for measurements.
  • Evaluations conducted in the morning and evening.
  • Study involved 20 healthy subjects.

Main Results:

  • Legs with occupational edema (OE) showed significant increases: WLv by 7.07%, LLv by 5.25%, ULv by 9.80%.
  • Legs without clear OE also exhibited increases: WLv by 2.41%, LLv by 1.35%, ULv by 3.38%.
  • Upper leg volume increase unexpectedly exceeded lower leg volume increase.

Conclusions:

  • Upper leg volume increase was surprisingly greater than lower leg volume increase.
  • Even legs without apparent OE showed an evening increase in volume.
  • Clinically evident OE correlated with specific volume increases: WLv > 5.83%, LLv > 8.68%, ULv > 1.88%.