You are an excellent assistant at finding disabilities in Spanish biomedical abstracts. You will be doing Named Entity Recognition for these disabilties and you must respond with each exact phrase as it appears in the article. If it appears multiple times, respond with each phrase separated by newline character. If there are no disabilities, respond with NA.

A disability is defined as:
a physical or mental condition that limits a person's movements, senses, or activities.


Abstract:

Abstract Introduction Huntington disease ( HD ) is a progressive neurodegenerative autosomal dominant disease characterized by motor , behavioral and cognitive disturbances . Dysphagia is a common and life - threatening symptom of the disease leading to nutritional deficiencies and a high risk of bronchoaspiration . Our objective was to study swallowing dysfunction and to present a specific intervention to improve or maintain swallowing efficiency . Materials and methods We recruited 10 ambulatory HD patients aged between 46 and 79 years old , with a moderate stage of the disease , who were compared with 10 age - and gender - matched healthy controls . The safety and effectiveness of the oral and pharyngeal phases was assessed qualitatively and quantitatively through the volume - viscosity swallow test . Results We observed ineffective lip closure in 6 patients , oral residue in 4 , repetitive swallows in 10 , pharyngeal residue in 7 , cough in 3 , voice changes in 6 , and a drop of 2 points in blood oxygen saturation in a further 3 . Controls scored between 60 and 63 points , while patients scored between 19 and 53 points . Conclusions The oral and pharyngeal swallowing phases are already compromised in moderate stages of HD . We hypothesize that a specific rehabilitation program for dysphagia could improve swallowing difficulties and contribute to maintaining nutritional status in affected individuals . Consequently , we propose a rehabilitation program including orolingual praxis and specific muscular postural strategies .
motor , behavioral and cognitive disturbances
Dysphagia
dysphagia
swallowing difficulties