Analysis of the Fundamental Frequency of the Human Voice and Its Frequency Distribution before and after a Voice Training Program

1982 ◽  
Vol 34 (3) ◽  
pp. 143-149 ◽  
Author(s):  
Sven Wedin ◽  
Jan-Erik Ögren
Keyword(s):  
Training Program ◽  
Fundamental Frequency ◽  
Frequency Distribution ◽  
Voice Training ◽  
Human Voice ◽  
Before And After

Aerodynamic and Acoustic Voice Measures Before and After an Acute Public Speaking Stressor

2020 ◽  
Vol 63 (10) ◽  
pp. 3311-3325
Author(s):  
Brittany L. Perrine ◽  
Ronald C. Scherer
Keyword(s):  
Fundamental Frequency ◽  
Salivary Cortisol ◽  
Public Speaking ◽  
Stress System ◽  
Before And After ◽  
Subglottal Pressure ◽  
Response To Stress ◽  
System Activation ◽  
Speaking Fundamental Frequency ◽  
Pituitary Adrenal Axis

Purpose The goal of this study was to determine if differences in stress system activation lead to changes in speaking fundamental frequency, average oral airflow, and estimated subglottal pressure before and after an acute, psychosocial stressor. Method Eighteen vocally healthy adult females experienced the Trier Social Stress Test (TSST) to activate the hypothalamic–pituitary–adrenal axis. The TSST includes public speaking and performing mental arithmetic in front of an audience. At seven time points, three before the stressor and four after the stressor, the participants produced /pa/ repetitions, read the Rainbow Passage, and provided a saliva sample. Measures included (a) salivary cortisol level, (b) oral airflow, (c) estimated subglottal pressure, and (d) speaking fundamental frequency from the second sentence of the Rainbow Passage. Results Ten of the 18 participants experienced a hypothalamic–pituitary–adrenal axis response to stress as indicated by a 2.5-nmol/L increase in salivary cortisol from before the TSST to after the TSST. Those who experienced a response to stress had a significantly higher speaking fundamental frequency before and immediately after the stressor than later after the stressor. No other variable varied significantly due to the stressor. Conclusions This study suggests that the idiosyncratic and inconsistent voice changes reported in the literature may be explained by differences in stress system activation. In addition, laryngeal aerodynamic measures appear resilient to changes due to acute stress. Further work is needed to examine the influence of other stress systems and if these findings hold for dysphonic individuals.

Cirugía de feminización de voz con técnica glotoplastia de Wendler en Barranquilla, Colombia. Voice feminization surgery with Wendler glottoplasty technique in Barranquilla, Colombia.

2018 ◽  
Vol 45 (4) ◽  
pp. 247-253 ◽  
Author(s):  
Antonio J. Ballestas ◽  
Samir A. Ballestas ◽  
Rocio Cuello
Keyword(s):  
Fundamental Frequency ◽  
Speech Therapy ◽  
Vocal Cords ◽  
Maximum Phonation Time ◽  
Study Materials ◽  
Before And After ◽  
Upper Face ◽  
Expert Surgeon ◽  
Frequency Maximum ◽  
Male To Female

Introducción: La glotoplastia de Wendler es la técnica que en la actualidad ofrece mejores resultados entre los diferentes tipos de cirugías para la feminización de la voz. Objetivo: Describir nuestra experiencia con la Glotoplastia de Wendler durante el proceso de feminización de la voz de mujeres transgénero. Diseño: Pseudoexperimental (antes-después) Materiales y Métodos: 36 pacientes transexuales en proceso de transformación de hombre a mujer se sometieron a cirugía y rehabilitación con terapias de voz con el equipo de VOICEFEM - Voice Feminization Colombia. La técnica utilizada consiste en la creación de una sinequia de las cuerdas vocales (CCVV) previa desepitelización de la cara interna del tercio anterior de las mismas, 2 puntos de sutura con Vicryl 4/0 y vaporización con electrocauterio en la región lateral de la cara superior de las CCVV y utilización de goma biológica en la sinequia creada. La medición de la frecuencia fundamental, el tiempo máximo de fonación, y la realización del cuestionario TSEQ, se llevaron a cabo antes y después de la cirugía. Resultados: Se obtuvo un aumento de la Frecuencia fundamental promedio de 112Hz(P<0.05) a los 6 meses posteriores al procedimiento quirúrgico y una disminución de cerca de 30 puntos en los resultados del cuestionario TSEQ. Conclusión: La glotoplastia de Wendler, llevada a cabo por cirujanos con experiencia en este campo, ofrece resultados favorables con aumentos significativos de la frecuencia fundamental a mediano plazo y debe estar necesariamente asociada al manejo postquirúrgico con terapias de voz, para obtener el desenlace óptimo esperado.Introduction: Wendler’s Glottoplasty is the technique that offers the best resultsamong the different types of voice feminization surgeries. Male to Female Transgender patients have in this technique the last step for their successful transformation. Objective: To describe our experience in carrying out Wendler’s glottoplasty during the process of feminization of the voice of transgender women. Design: Pseudoexperimental (before-after) study. Materials and methods: In 36 Male to Female Transgender patients, Wendler’s glottoplasty was conducted by VOICEFEM - Voice Feminization Colombia’s team, with further speech therapy rehabilitation. This technique consists of the creation of a synechia of the vocal cords which is carried out after the de-epithelization of the vocal cords on the inner face of its anterior third, 2 stitches with Vicryl 4/0 and vaporization with electrocautery in the lateral region of vocal cords upper face, and the use of biological glue in the created synechia. The measurement of the Fundamental Frequency, Maximum Phonation time, and the completion of the TSEQ questionnaire were carried out before and after the surgery. Results: There was an increase of 112 Hz in the average of Fundamental Frequency(P<0.05) 6 months after the surgery, and a decrease of approximately 30 points in the TSEQ questionnaire results. Conclusion: Wendler’s Glottoplasty conducted by an expert surgeon, provides positive results with a significant increase for fundamental frequency in the medium term, and it is imperative to do also voice therapy rehabilitation posterior to the procedure in order to obtain the expected optimal outcome.

Evaluation of a New Field Epidemiology Training Program Intermediate Course to Strengthen Public Health Workforce Capacity in Tanzania

2021 ◽  
pp. 003335492097466
Author(s):  
Kate Wilson ◽  
Amir Juya ◽  
Ahmed Abade ◽  
Senga Sembuche ◽  
Devotha Leonard ◽  
...  
Keyword(s):  
Public Health ◽  
Training Program ◽  
Health Workforce ◽  
Outcome Evaluation ◽  
Exit Interviews ◽  
Field Epidemiology ◽  
Health Threats ◽  
Before And After ◽  
Workforce Capacity ◽  
Field Epidemiology Training Program

Objectives Sub-Saharan Africa faces a shortage of skilled epidemiologists to prevent, detect, and respond to health threats. Tanzania has implemented one of the first Centers for Disease Control and Prevention Field Epidemiology Training Program (FETP) Intermediate courses in Africa. This course aims to strengthen health workforce capacity in surveillance system assessment, outbreak investigation, and evaluation, prioritizing HIV control. We conducted an outcome evaluation of this new course. Methods We used a pre/post evaluation design using data from 4 cohorts of trainees who took the FETP Intermediate course from 2017 to 2020. We conducted knowledge assessments before and after each cohort and combined those results. Outcomes included knowledge and self-rated competency and trends in integrated disease surveillance and response (IDSR) data. We collected data through tests, field assignments, exit interviews, and data audits. We compared the mean change in pre-/posttest scores using linear regression and 95% CIs. We used content analysis to summarize exit interviews. Results Fifty-three FETP trainees from 10 regions enrolled in the FETP Intermediate course, and 52 (99.0%) completed the course. We found substantial increases in mean knowledge (44.0 to 68.0 points) and self-rated competency (4.14 to 4.43) scores before and after the course. Trainees evaluated 52 surveillance systems and 52 district HIV care programs, and 39 (75.0%) trainees participated in outbreak investigations. From before to after cohort 1, timeliness and completeness of IDSR reports increased from 4.2% to 52.1% and from 27.4% to 76.5%, respectively. Course strengths were quality of instruction, individualized mentoring, and practical skills gained. Challenges were mentor availability, limited time for data analysis practice, and balancing work and field assignments. Conclusions The Tanzania FETP Intermediate course substantially improved trainee knowledge and helped to improve local data quality and reporting. This course is a promising model to strengthen subnational capacity to prevent, detect, and respond to public health threats in Africa.

scholarly journals Closing the knowledge gap in pelvic neuroanatomy: assessment of a cadaveric training program

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ioana Marcu ◽  
Adrian Balica ◽  
Jeffrey A. Gavard ◽  
Eugen C. Campian ◽  
Gustavo Leme Fernandes ◽  
...  
Keyword(s):  
Cohort Study ◽  
Laparoscopic Surgery ◽  
Training Program ◽  
Knowledge Test ◽  
Educational Facility ◽  
Before And After ◽  
Baseline Knowledge ◽  
The Mean ◽  
Level Of Training ◽  
Dissection Method

Abstract Background The objective of this study is to characterize participants in a laparoscopic cadaveric neuroanatomy course and assess knowledge of pelvic neuroanatomy before and after this course. Methods This is a survey-based cohort study with a setting in a university educational facility. The participants are surgeons in a multiday laparoscopic cadaveric pelvic neuroanatomy course. Participants completed a precourse survey, including demographics and comfort with laparoscopic surgery. They then completed an identical precourse and postcourse anatomic knowledge test. Main outcomes are scores on the anatomic knowledge test precourse and postcourse. Results 44 respondents were included: 25 completed fellowship, 15 completed residency, 2 were residents, and 2 were fellows. Participants were on average 11.09 years post training, with an average of 8.67 years from training if they completed fellowship and 18.62 years if they completed residency only. 22 of 42 respondents strongly agreed or agreed they are comfortable performing complex laparoscopic hysterectomies. The average precourse score was 32.18/50 points and the mean difference score (MDS, defined as mean of Postcourse scores minus Precourse scores) was 9.80, showing significant improvement (p <  0.001). Precourse and MDS scores were not significantly different when comparing country of practice, level of training, or time since training. Conclusion Baseline knowledge of pelvic neuroanatomy was similar among groups when comparing fellowship status, place of training, or time since training. There was significant improvement in knowledge after training in this dissection method. This course garnered interest from surgeons with broad training backgrounds.

Exercise Training and the Speed of Self-Selected Walking Pace in Men at Retirement

1986 ◽  
Vol 5 (1) ◽  
pp. 19-26 ◽  
Author(s):  
D. A. Cunningham ◽  
P. A. Rechnitzer ◽  
A. P. Donner
Keyword(s):  
Exercise Training ◽  
Training Program ◽  
Walking Speed ◽  
Exercise Group ◽  
Cardiovascular Fitness ◽  
Blue Collar ◽  
Intervention Trial ◽  
Before And After ◽  
Exercise Endurance ◽  
One Year

ABSTRACTAn intervention trial with regular physical activity was carried out to test the hypothesis that walking speed is related to the level of cardiovascular fitness (maximal oxygen uptake). Earlier research has demonstrated that when VO2 max is held constant in a multiple regression analysis the association between walking speed and age (29–65 y) is eliminated. To describe the association between self-selected speeds of walking, and level of cardiovascular fitness, 63 men age 60 to 65 were studied before and after a 1 year program of exercise training. VO2 max was determined on a motor driven treadmill. A test of self-selected walking pace was administered over a 240 m indoor course. The men were asked to walk at 3 paces considered by the subjects to be rather slow, normal, and fast, respectively. They were randomly assigned with stratification for white and blue collar occupation to a program of exercise training (n = 33) or control (n = 27). The training program consisted of walking or jogging for 30 min three times per week for one year. After the training program the exercise group increased their VO2 max (9.5%) and their normal walking speed (1.29 to 1.43 m.s−1) significantly compared to the controls. A program of exercise endurance training will result in an increase in the speed of self-selected pace.

Knowledge and Skills of Lay Participants Training with Basic Life Support Program in Case of Cardiac Arrest

2021 ◽  
Vol 104 (Suppl. 1) ◽  
pp. S44-S48
Keyword(s):  
Cardiac Arrest ◽  
Training Program ◽  
Basic Life Support ◽  
Life Support ◽  
Training Session ◽  
Smartphone Application ◽  
Knowledge And Skills ◽  
Lay People ◽  
Before And After ◽  
Hospital Cardiac Arrest

Background: Out-of-hospital cardiac arrest is an important cause that leads to hospital admission and death. Improving lay people’s knowledge and skills in basic life support (BLS) may lead to reduced death associated with out-of-hospital cardiac arrest. “BLS NU KKU” is a BLS training program developed from up-to-date literature as a smartphone application used to train lay people in the community. Objective: To evaluate BLS-related knowledge and skills of participants before and after BLS training. Materials and Methods: A one group pretest-posttest design was used to implement the present study in Khon Kaen, Thailand. Participants were 350 individuals age 18 and older. An 8-hour BLS training session was offered to 10 groups of 35 participants over the period of 10 months between November 2018 and August 2019. Self-administered questionnaires were used to assess BLS knowledge and Cardiopulmonary resuscitation (CPR) skills. Results: The mean score for BLS-related knowledge significantly increased after the BLS training (mean = 15.05, SD = 2.51) compared to the scores before the training (mean = 10.47, SD = 3.43) (p<0.05). BLS skills improved from 0% to 100% (p<0.001) will all skills rated with mostly “excellent” and “good”. Satisfaction with the training program was also rated mostly with “excellent” and “good”. Conclusion: The BLS training program effectively improved participants’ knowledge and skills for basic life support. This program should be disseminated to train lay people in other settings. Keywords: Basic life support, Cardiac arrest, Mobile application

EFFECT OF REACTION TRAINING ON DURATION AND REACTION TIMES

2021 ◽  
Vol 7 (27) ◽  
pp. 86-92
Author(s):  
Tülin ATAN
Keyword(s):  
Reaction Time ◽  
Normal Distribution ◽  
Training Program ◽  
Reaction Times ◽  
Rank Test ◽  
Tennis Players ◽  
Before And After ◽  
Speed Performance ◽  
And Performance ◽  
Training Exercises

In this study, it was aimed to examine the effects of reaction training on reaction time and speed in tennis players. For this purpose a total of 18 tennis players; 9 male (age; 13.33 ± 1.80 years) and 7 female (13.85 ± 2.19 years) were voluntarily participated the study. In this study, the reaction training program, which was applied for 2 days a week for 12 weeks, was prepared in addition to tennis training. In the reaction training, exercises suitable for visual and auditory reaction were used. Before and after the 12-week reaction training, a 30 m speed running test and reaction time tests were performed. Whether the data showed normal distribution was analyzed with the Shapiro Wilk test and it was determined that the data did not show normal distribution. Mann Whitney U test was used in comparisons between the two groups. Wilcoxan Signd Rank test was used in the comparisons made before and after the training. As a result of the statistical analysis, it was seen that both the physical characteristics and performance parameters of males and females in our study group were not statistically different (p>0.05). For this reason, all subjects were taken into consideration regardless of gender in comparisons before and after tennis training. After the reaction training program applied to the subjects, it was determined that the 30 m speed performance values were shortened in duration compared to the pre-training period, that is, the speed improved (p <0.01). When the reaction time values were compared before and after the training program applied, it was seen that the reaction time values improved significantly after the training (p <0.01). As a result, reaction training performed in tennis players’ increases speed and reaction time performance. Reaction training is recommended in sports branches where this type of motor is important.

scholarly journals THE FEATURES OF THE INFLUENCE OF OCCUPATIONAL ACTIVITY OF ACCOUNTANT UPON ITS PSYCHOLOGICAL STATUS

2019 ◽  
Vol 98 (5) ◽  
pp. 509-514
Author(s):  
T. N. Vasileva ◽  
I. V. Fedotova
Keyword(s):  
Functional Status ◽  
Training Program ◽  
Occupational Group ◽  
Conflict Situation ◽  
Psychological Status ◽  
Occupational Activity ◽  
Emotional Instability ◽  
Behavior Strategy ◽  
Before And After ◽  
Behavior Strategies

Introduction. In this paper, the authors presented findings of comparative psychodiagnostics of certain indices of personality sphere of accountants before and after implementation of the author’s training program “11 steps of perfection”. material and methods. Two preferable behavior strategies (“Collaboration and “Compromise”) of accountants in conflict situation were revealed. Pronounced levels of indices of reticence, emotional instability, anxiety and lower levels of indices of functional status were found in elder accountants. Results of approbation of the training program aimed to form a positive dynamics of personality sphere indices in this occupational group provided evidence about the effectiveness of this program. conclusion. The decrease of levels of indices of reticence, emotional instability, anxiety; elevated levels of indices of functional status; the broadening of behavior strategy spectrum in a conflict situation was observed.

scholarly journals The effectiveness of a proposed training program based on active learning to develop teaching skills of Shari'a Sciences’ teachers and their attitudes towards it at the kingdom of Saudi Arabia: فاعلية برنامج تدريبي مقترح قائم على التعلّم النشط في تنمية المهارات التدريسية لدى معلمي العلوم الشرعية واتجاهاتهم نحوه في المملكة العربية السعودية

2019 ◽  
Vol 3 (27) ◽  
Author(s):  
Fahad Ayed Al Radaddi , Amal Mahmoud Ali ,   Iman Mohamed Ma
Keyword(s):  
Saudi Arabia ◽  
Active Learning ◽  
Secondary School ◽  
Training Program ◽  
Learning Strategies ◽  
Positive Impact ◽  
Teaching Skills ◽  
Kingdom Of Saudi Arabia ◽  
Before And After ◽  
Planning Implementation

Research Goal: To measure the effectiveness of the use of a proposed training program based on active learning to develop teaching skills of Shari'a Sciences’ teachers and their attitudes towards it at the kingdom of Saudi Arabia. The Research depended on the descriptive approach during building the program that based on active learning strategies, as assign experimental method when applying the program to identify its effectiveness in developing teaching of Shari'a Sciences’ teachers for the secondary school in the city of Medina and their attitudes toward it in teaching. Research instruments: The Card Note of teaching skills consisted of (45) sub-skill divided into three main areas which are (planning, implementation and evaluation). The measure of the attitude towards active learning in teaching included (26) phrases, therefore, the program is based on active learning in developing the teaching skills. After the researcher has checked the sincerity of research instruments, he began to be apply it to a stratified random sample, which consisted of (34) teachers of Shari'a Sciences’ teachers for the secondary school. The research contain a number of appropriate statistical methods, which are arithmetic averages, standard deviations, (T) test for the associated groups, the coefficient of Peerson, ETA square, the equation of the Blak, the coefficient of alpha Cronbach and the equation of Cooper. After conducting statistical analyzes, the research found the existence of Statistical differences among the average performance of the research sample in the Card Note of teaching skills in (planning, implementation and evaluation) Separated and combined in the light of active learning before and after the proposed training program for the benefit of the telemetric. In the light of the findings, the research recommended: Taking advantage of the current research program in training Shari'a Sciences’ teachers in different stages of education, especially Secondary School Teachers, because of its positive impact on the development of their teaching skills, and benefit from the list of teaching skills of the current research when assessing teachers' performance during service.   ، ، ، 

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