Immediate effects of the phonation into a straw exercise

Abstract

Immedi ate effects of an exercise with the vocal tract semi-closed.Objective: To investigate the immediate effects of the phonation exercise in a straw in individuals with and without vocal fold lesions. Materials and Methods:Prospective study. 48 individuals, aged between 18 and 55 years participated in the study, and they were distributed into two groups: GL-with a benign vocal fold lesion; GSLwithout a lesion. The following analyses were carried out before and after the straw phonation exercises: voice self-analysis, [ε] vowel auditory-perception analysis, selected parameters acoustics (VoxMetria 2.6) and videolaryngoscopy. Results:The vocal self assessment indicated a statistically significant improvement on voice emission in GL individuals (p=0.015). There were no statistically significant differences before and after the exercise and between the groups, in the videolaryngoscopy, acoustic and auditory-perception assessments. Conclusion:The straw phonation exercise caused positive effects, seen upon voice self-assessment, indicating an easier and better voice upon phonation. Braz J Otorhinolaryngol. 2011;77(4):461-5. ORIGINAL ARTICLE BJORL

Efeito do tempo de realização do exercício de canudo de alta resistência em mulheres disfônicas e não disfônicas

“…The results found in this study after 1 minute of exercise can be compared with the findings of two scientific studies performed with the same technique and duration (1,25) . A study (25) carried out with women with no vocal complaints verified improvement in vocal quality of articulated speech excerpts (analysis not performed in the current study), as well as positive effects on the individuals' self-rating and reduction of fundamental frequency, which did not occur in this study for the vocally healthy population (VHG).…”

“…On the other hand, another study (1) , performed with dysphonic and non-dysphonic individuals, more discrete results were observed with positive effects only in the self-rating of dysphonic individuals, who reported easier voicing. This result can be compared to the reduction in phonatory effort verified in the present study for the dysphonic population (DG) after 1 minute of exercise.…”

“…This result can be compared to the reduction in phonatory effort verified in the present study for the dysphonic population (DG) after 1 minute of exercise. No other parameter analyzed changed due to the exercise in either study (1,25) . Some parameters of this study also did not change with the time of exercise in both groups (DG and VHG): F 0 and its variability in semitones, jitter, shimmer, GNE, noise, and irregularity.…”

“…Vocal training is an intervention for improvement and rehabilitation which aims for a production with minimum effort and maximum efficiency (1) . Normally, it involves daily exercises, acquisition and generalization of techniques for better vocal production, elimination of harmful vocal behaviors and, in some cases, reducing use of speech and voice (2,3) .…”

“…One of the SOVT exercises with higher resistance to air flow is the exercise of phonation into a narrow rigid straw (15,17,(19)(20)(21)(22)(23)(24)(25) , which is also the one with most widely proven short-term positive effects (1,11,15,19,21) . Additionally, it is low-cost and easy to perform, being indicated for practice several times a day, for 2 to 5 minutes, both for vocal improvement and rehabilitation of voice changes.…”