Abstract
AbstractObjectivesTo investigate the analgesic effect of interferential therapy (IFT) on experimentally induced anterior knee pain.MethodsA double-blind placebo-controlled investigation was undertaken on 10 healthy subjects. Anterior knee pain was induced by an injection of hypertonic saline into the medial infrapatellar fat pad. Immediately, following the injection, subjects received 20 minutes of each of the following conditions: control, placebo IFT, 4 Hz IFT, or 100 Hz IFT, in random order on four separate days. Pain severity and the size of the painful region every 30 seconds were recorded until pain ceased. The location of the pain was recorded at 2, 7, and 12 minutes after the painful injection using a standardized figure of the knee divided into nine segments.ResultsThere was no effect of condition on pain severity, size of painful area, maximum reported pain severity, maximum size of painful area, duration of pain, total pain severity, and the total size of the painful area (all P > 0.09). There ...
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