Sufficient neck flexion was important in chin tuck to prevent aspiration. Patients without residue in pyriform sinus were more likely to benefit from chin tuck. The effectiveness of chin tuck was less than anticipated. Rest for 1 minute in between each set of the exercise. Repeat sets as recommended by your speech therapist / pathologist. Sustain chin tuck against the ball for as hard as possible for the duration of sec. At least 17.5° of neck flexion was required to achieve an effect with chin tuck. Hold the ball under your chin with your hand and keep it in position during the exercise. Female sex and absence of residue in pyriform sinus favored the effect of chin tuck (p < 0.05). Oral transit time, pharyngeal delayed time and pharyngeal transit time were significantly shortened in both groups (p < 0.05), but the difference between the groups was not significant. Aspiration was reduced or eliminated in only 19 patients (19.6 %) with chin tuck. Neck flexion angle was measured to find appropriate posture in which aspiration was prevented with chin tuck. Duration of dysphagic symptoms, history of tracheostomy, and other possible contributing factors were also compared. Severity of aspiration was assessed by the point penetration-aspiration scale. VFSS was performed in neutral and chin tuck position and findings were compared between the groups. Participants were grouped into the effective (patients who showed effect with chin tuck) and ineffective group (those who did not show effect with chin tuck). Ninety-seven patients who showed aspiration in the videofluoroscopic swallow study (VFSS). This study was performed to investigate the effectiveness and the degree of optimal neck flexion of chin tuck. Chin tuck has been has been widely used to prevent aspiration in the patients with dysphagia.
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