ArticleBulletin of the Hospital for Joint Disease (2013)2026
Effect of external pressure and muscle contraction on soft tissue oxygenation measured with near infrared spectroscopy.
Article in Bulletin of the Hospital for Joint Disease (2013), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeThe purpose of this in vivo study was to determine whether localized external compression of muscle combined with physiologic muscle contraction leads to muscle deoxygenation. The hypothesis was that a cyclic hypoxic environment was created when localized external compression was combined with muscle contraction.
methodsNear infrared spectroscopy was used to measure soft tissue oxygenation in 9 patients while applying 40 mm Hg (mercury) of external pressure simultaneously with muscle contraction.
resultsA statistically significant decrease in oxygenated hemoglobin was demonstrated in muscle with utilization of a specialized brace to apply a localized pressure, simultaneous with muscle contraction. The decrease in oxygenation was more than 3 times greater than the decrease seen with muscle contraction alone without external pressure (-22.58 vs. -5.82 µM).
conclusionApplication of external pressure combined with muscle contraction can be used to produce decreased soft tissue oxygenation.
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