Effects of Intense Chewing Exercises on the Masticatory Sensory-Motor System

摘要: Nociceptive substances, injected into the masseter muscle, induce pain and facilitate jaw-stretch reflex. It is hypothesized that intense chewing would provoke similar effects. Fourteen men performed 20 bouts of 5-minute chewing. After each bout, min 24 hrs after exercise, muscle fatigue scores normalized reflex amplitude from left were recorded. Before, min, signs temporomandibular disorders pressure-pain thresholds masticatory muscles also Fatigue had increased during exercise (P < 0.001), but did not = 0.123). Twenty minutes exercises, 12 participants showed myofascial or arthralgia. Pressure-pain decreased 0.009) 0.049). Intense can fatigue, pain, in muscles, without concomitant changes amplitude.