Effect of weight loading on the coronary band interstitial fluid pressure in horses.
Interstitial fluid pressures, as a possible function of limb load, were measured at 2 sites within the digital coronary dermis of both cranial digits in 10 standing horses. Fluid pressure changes and digital load measurements were simultaneously detected and recorded by use of, respectively, modified wick-in-needle and force plate transducers coupled to a microcomputer. Mean pressures, recorded at limb loads between 50 and 80 kg, were 2.29 +/- 3.17 mm of Hg at the toe and 2.49 +/- 5.91 mm of Hg at the heel. Mean pressures, recorded between 150 and 180 kg, were 5.01 +/- 5.23 mm of Hg at the toe and 1.28 +/- 7.69 mm of Hg at the heel. These data indicate that, in the static limb, no statistically significant change in interstitial fluid pressure occurs at loads up to 180 kg.
Department of Veterinary Physiology, College of Veterinary Medicine, Texas A&M University, College Station 77843-4466.
A
A
Olivier
D M
DM
Hood
W L
WL
Jenkins
D R
DR
Clark
J D
JD
Williams
D A
DA
Grosenbaugh
D000818:Animals; D001481:Basal Metabolism; D001794:Blood Pressure; D005110:Extracellular Space / Q000502:physiology*; D005260:Female; D005552:Forelimb; D006724:Hoof and Claw / Q000098:blood supply / Q000502:physiology*; D006736:Horses / Q000502:physiology*; D008124:Locomotion; D008297:Male; D011312:Pressure; D014034:Toes; D014160:Transducers, Pressure