Examination of swallowing maneuver training and transfer of practiced behaviors to laryngeal vestibule kinematics in functional swallowing of healthy adults

PHYSIOLOGY & BEHAVIOR

卷:174

Article

Guedes, Renata^1,2  Azola, Alba³  Macrae, Phoebe⁴  Sunday, Kirstyn¹  Mejia, Veerley¹  Vose, Alicia¹  Humbert, Ianessa A.¹ 

[1] Univ Florida, Dept Speech Language & Hearing Sci, Swallowing Syst Core, Gainesville, FL 32611 USA

[2] AC Camargo Canc Ctr, Sao Paulo, Brazil

[3] Johns Hopkins Sch Med, Dept Phys Med & Rehabil, Baltimore, MD USA

[4] Univ Canterbury, Dept Commun Disorders, Christchurch, New Zealand

关键词: Deglutition;    Larynx;    Dysphagia;    Rehabilitation;   

DOI  :  10.1016/j.physbeh.2017.03.018

来源: Elsevier

【 摘 要 】

Swallowing maneuvers are routinely trained in dysphagia rehabilitation with the assumption that practiced behaviors transfer to functional swallowing, however transfer is rarely examined in the deglutition literature. The goal of this study was to train the volitional laryngeal vestibule closure (vLVC) maneuver, which is a swallowing maneuver that targets prolonged laryngeal vestibule closure (LVC). In two different training experiments, 69 healthy adults underwent Long-hold (hold vLVC as long as possible) or Short-hold vLVC training (hold vLVC for 2 s). Before and after vLVC training, natural swallows (swallowing without a therapeutic technique) were completed. The outcome variables included laryngeal vestibule closure reaction time and the duration of laryngeal vestibule closure. Results indicate that during both Long-hold and Short-hold vLVC trainings, vLVC swallows had faster laryngeal vestibule closure reaction times and longer durations of laryngeal vestibule closure than in pre-training 5 ml liquid swallows. However, only faster laryngeal vestibule cloSure reaction times transferred to post-training 5 ml liquid swallows (20-24% faster), but not prolonged durations of laryngeal vestibule closure. Our findings suggest that swallowing maneuver training has the potential to induce transfer of what was practiced to functional swallowing behavior, although not all practiced behaviors may generalize. These findings are significant for bolstering the effectiveness of dysphagia management in medical settings and should be tested in individuals with dysphagia. (C) 2017 Elsevier Inc. All rights reserved.

【 授权许可】

Free