Respiratory Muscle Strength, Sound Pressure Level, and Vocal Acoustic Parameters and Waist Circumference of Children With Different Nutritional Status

2016 ◽  
Vol 30 (1) ◽  
pp. 30-35 ◽  
Author(s):  
Fernanda dos Santos Pascotini ◽  
Vanessa Veis Ribeiro ◽  
Mara Keli Christmann ◽  
Lidia Lis Tomasi ◽  
Amanda Alves Dellazzana ◽  
...  
Keyword(s):  
Waist Circumference ◽  
Muscle Strength ◽  
Nutritional Status ◽  
Sound Pressure Level ◽  
Respiratory Muscle ◽  
Sound Pressure ◽  
Pressure Level ◽  
Respiratory Muscle Strength ◽  
Acoustic Parameters

scholarly journals 310 Respiratory muscle strength and nutritional status in Cystic Fibrosis patients

2006 ◽  
Vol 5 ◽  
pp. S72
Author(s):  
T. Moudiou ◽  
A. Galli-Tsinopoulou ◽  
M. Eboriadou ◽  
S. Nousia-Arvanitakis
Keyword(s):  
Cystic Fibrosis ◽  
Muscle Strength ◽  
Nutritional Status ◽  
Respiratory Muscle ◽  
Respiratory Muscle Strength

The Effects of Nutritional Status and Hyperinflation on Respiratory Muscle Strength in Children and Young Adults

1990 ◽  
Vol 141 (6) ◽  
pp. 1506-1509 ◽  
Author(s):  
Larry Lands ◽  
Katherine J. Desmond ◽  
Debbie Demizio ◽  
Allan Pavilanis ◽  
Allan L. Coates
Keyword(s):  
Young Adults ◽  
Muscle Strength ◽  
Nutritional Status ◽  
Respiratory Muscle ◽  
Respiratory Muscle Strength ◽  
Children And Young Adults

scholarly journals Does obesity affect the respiratory muscle strength? An observational study

2021 ◽  
Vol 8 (4) ◽  
pp. 1880
Author(s):  
Isha Shripad ◽  
Razia Nagarwala
Keyword(s):  
Waist Circumference ◽  
Muscle Strength ◽  
Respiratory Muscle ◽  
Breathing Pattern ◽  
The Body ◽  
Physical Aspect ◽  
Obese Patients ◽  
Respiratory Muscle Strength ◽  
Inclusion Criteria ◽  
Maximal Inspiratory Pressure

Background: Obesity is a condition where the energy intake exceeds energy expenditure of the body. Obesity is seen to affect different aspects of life both physically and emotionally. One such physical aspect is the breathing pattern. Studies on the behavior of respiratory muscle strength (RMS) in obese patients have found conflicting results.Methods: Using purposive sampling, 60 subjects who fulfilled the inclusion criteria were recruited in the study. Each individual was subjected for the assessment of Maximal Inspiratory Pressure (MIP) and Maximal Expiratory Pressure (MEP), Body Mass Index (BMI) and Waist circumference (WC).   Results: A Pearson’s product-moment correlation coefficient showed a positive correlation between MIP and WC (r=0.378, n=60, p=0.003 with α at 0.01) and between MEP and WC (r=0.288, n=60, p=0.026 with α at 0.05). There was no correlation found between BMI and MIP (r=0.138, n=60, p=0.292) and BMI and MEP (r=0.150, n=60, p=0.252).Conclusions: The findings of the study suggest that the respiratory muscle strength is more in individuals with higher waist circumference values whereas with BMI it is inconclusive. 

scholarly journals Improved Source Characteristics of a Handclap for Acoustic Measurements: Utilization of a Leather Glove

Acoustics ◽  
2020 ◽  
Vol 2 (4) ◽  
pp. 803-811
Author(s):  
Rick de Vos ◽  
Nikolaos M. Papadakis ◽  
Georgios E. Stavroulakis
Keyword(s):  
Sound Pressure Level ◽  
Sound Pressure ◽  
Low Frequency ◽  
Pressure Level ◽  
Acoustic Measurements ◽  
Frequency Range ◽  
Acoustic Parameters ◽  
Source Characteristics ◽  
Sound Levels ◽  
Engineering Practices

A handclap is a convenient and easily available source for room acoustic measurements. If used correctly (e.g., application of optimal hand configuration) it can provide usable results for the measurement of acoustic parameters, within an expected deviation. Its biggest drawbacks are the low sound pressure level (especially in the low frequency range) as well as its low repeatability. With this in mind, this paper explores the idea of testing a handclap with a glove in order to assess the effect on its source characteristics. For this purpose, measurements were performed with 12 participants wearing leather gloves. Sound levels were compared with simple handclaps without gloves, and between grouped results (overall A-weighted SPL, octave bands, 1/3 octave bands). Measurements were also performed several times to evaluate the effect on repeatability. Results indicate that the use of leather gloves can increase the sound levels of a handclap by 10 dB and 15 dB in the low frequency ranges (63 Hz and 125 Hz octave bands, respectively). Handclaps with leather gloves also point toward improved repeatability, particularly in the low-frequency part of the frequency spectrum. In conclusion, compared to simple handclaps without gloves, evidence from this study supports the concept that handclaps with leather gloves can be used in engineering practices for improved room acoustic measurements of room impulse response.

Contributions of Voice and Nonverbal Communication to Perceived Masculinity–Femininity for Cisgender and Transgender Communicators

2020 ◽  
Vol 63 (4) ◽  
pp. 931-947
Author(s):  
Teresa L. D. Hardy ◽  
Carol A. Boliek ◽  
Daniel Aalto ◽  
Justin Lewicke ◽  
Kristopher Wells ◽  
...  
Keyword(s):  
Fundamental Frequency ◽  
Sound Pressure Level ◽  
Sound Pressure ◽  
Vocal Tract ◽  
Presentation Mode ◽  
Pressure Level ◽  
Presentation Modes ◽  
Audiovisual Stimuli ◽  
Vocal Tract Resonance ◽  
Point Light

Purpose The purpose of this study was twofold: (a) to identify a set of communication-based predictors (including both acoustic and gestural variables) of masculinity–femininity ratings and (b) to explore differences in ratings between audio and audiovisual presentation modes for transgender and cisgender communicators. Method The voices and gestures of a group of cisgender men and women ( n = 10 of each) and transgender women ( n = 20) communicators were recorded while they recounted the story of a cartoon using acoustic and motion capture recording systems. A total of 17 acoustic and gestural variables were measured from these recordings. A group of observers ( n = 20) rated each communicator's masculinity–femininity based on 30- to 45-s samples of the cartoon description presented in three modes: audio, visual, and audio visual. Visual and audiovisual stimuli contained point light displays standardized for size. Ratings were made using a direct magnitude estimation scale without modulus. Communication-based predictors of masculinity–femininity ratings were identified using multiple regression, and analysis of variance was used to determine the effect of presentation mode on perceptual ratings. Results Fundamental frequency, average vowel formant, and sound pressure level were identified as significant predictors of masculinity–femininity ratings for these communicators. Communicators were rated significantly more feminine in the audio than the audiovisual mode and unreliably in the visual-only mode. Conclusions Both study purposes were met. Results support continued emphasis on fundamental frequency and vocal tract resonance in voice and communication modification training with transgender individuals and provide evidence for the potential benefit of modifying sound pressure level, especially when a masculine presentation is desired.

Case study: Theoretical calculation model and variable condition analysis research on the water-splashing noise for natural draft wet cooling towers

2020 ◽  
Vol 68 (2) ◽  
pp. 137-145
Author(s):  
Yang Zhouo ◽  
Ming Gao ◽  
Suoying He ◽  
Yuetao Shi ◽  
Fengzhong Sun
Keyword(s):  
Theoretical Model ◽  
Sound Pressure Level ◽  
Water Droplet ◽  
Water Distribution ◽  
Sound Pressure ◽  
Cooling Tower ◽  
Distribution Patterns ◽  
Calculation Model ◽  
Pressure Level ◽  
Cooling Towers

Based on the basic theory of water droplets impact noise, the generation mechanism and calculation model of the water-splashing noise for natural draft wet cooling towers were established in this study, and then by means of the custom software, the water-splashing noise was studied under different water droplet diameters and water-spraying densities as well as partition water distribution patterns conditions. Comparedwith the water-splashing noise of the field test, the average difference of the theoretical and the measured value is 0.82 dB, which validates the accuracy of the established theoretical model. The results based on theoretical model showed that, when the water droplet diameters are smaller in cooling tower, the attenuation of total sound pressure level of the water-splashing noise is greater. From 0 m to 8 m away from the cooling tower, the sound pressure level of the watersplashing noise of 3 mm and 6 mm water droplets decreases by 8.20 dB and 4.36 dB, respectively. Additionally, when the water-spraying density becomes twice of the designed value, the sound pressure level of water-splashing noise all increases by 3.01 dB for the cooling towers of 300 MW, 600 MW and 1000 MW units. Finally, under the partition water distribution patterns, the change of the sound pressure level is small. For the R s/2 and Rs/3 partition radius (Rs is the radius of water-spraying area), when the water-spraying density ratio between the outer and inner zone increases from 1 to 3, the sound pressure level of water-splashing noise increases by 0.7 dB and 0.3 dB, respectively.

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