Contraction of the genioglossus affects either tongue protrusion strength or dilating forces of the upper airway. The upper airway in @entity1 with @entity27 ( @entity27 ) is thought to collapse during sleep, at least in part because of a sleep related reduction in genioglossus muscle activity. Thus, although tongue protrusion strength by genioglossus activity during sleep contributes to the maintenance of airway patency in @entity1 with @entity27 , the relationship between tongue protrusion strength in the arousal state and @entity27 has not been fully elucidated. Conventional method of tongue protrusion strength cannot be used to evaluate in edentulous subjects and/or subjects with the decreased biting force. In this study, employing a novel measurement method that does not require biting a transducer, we investigated relationships between the tongue protrusion strength and polysomnographic findings. We enrolled twenty normal subjects and 26 subjects with @entity27 . All subjects completed the measurement of tongue protrusion strength. Each subject with @entity27 was evaluated by full polysomnography. The degree of tongue protrusion strength was assessed by maximum voluntary contraction against the tongue depressor connected with a strain gauge dynamometer. The tongue protrusion strength was negatively correlated with obstructive @entity386 time, @entity386 index (AI) and the percent of sleep stage 2 (r = -0.61, p < 0.0001, r = -0.41 p = 0.03 and r = -0.39 p = 0.04, respectively). Tongue protrusion strength measured in the arousal state is predictive of the airway patency during sleep in @entity27 .

Tongue Protrusion Strength in Arousal State Is Predictive of the Airway Patency in Obstructive Sleep XXXX .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity27 :: ('MESH:D020181', 'Disease') :: ['OSA', 'obstructive sleep apnea'] @entity386 :: ('MESH:D001049', 'Disease') :: ['apnea']
@entity386 :: (MESH:D001049,Disease) :: ['Apnea']
