Fig. 1From: The effect of brief pre-anesthetic exercise therapy of jaw and neck joints on mouth opening, neck extension, and intubation conditions during induction of general anesthesia: a randomized controlled trialThe exercise regimen on jaw and neck joints (Exercise sequence: a – b – c – a). a Manual massage of masseter muscle (30 s); b Extension, flexion, rotation, and lateral flexion of neck (2 min); c Active and passive maximum mandibular opening and lateral deviation of temoporomandibular joint (2 min)Back to article page