scholarly journals Effect of Upright and Slouched Sitting Postures on the Respiratory Muscle Strength in Healthy Young Males

2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
Author(s):  
Ali Albarrati ◽  
Hamayun Zafar ◽  
Ahmad H. Alghadir ◽  
Shahnwaz Anwer
Keyword(s):  
Muscle Strength ◽  
Respiratory Muscle ◽  
Forced Expiratory Volume ◽  
Demographic Variables ◽  
Sitting Position ◽  
Respiratory Muscle Strength ◽  
Young Males ◽  
Significant Difference ◽  
Predicted Values ◽  
Male Subjects

Objective. The present study compared the effects of upright and slouched sitting postures on the respiratory muscle strength in healthy young males. Methods. A total of 35 adult male subjects aged 18–35 years participated in this study. Respiratory muscle strength was determined by measurement of sniff nasal inspiratory pressure (SNIP) using a MicroRPM device in the upright and slouched sitting positions. The subjects were asked to perform the pulmonary function test including peak expiratory flow (PEF), forced expiratory volume in one second (FEV1), forced vital capacity (FVC), and FEV1/FVC ratio at baseline. Body composition was also determined. Results. There was a significant difference of SNIP score between upright sitting and slouched sitting positions (p=0.04). The mean difference of SNIP score between upright sitting and slouched sitting positions was 8.7 cmH2O. Significant correlations were found between SNIP in upright sitting and FEV1% predicted values [R = .651], SNIP in slouched sitting and FEV1% predicted values [R = .579], and SNIP in upright sitting and SNIP in slouched sitting positions [R = .926] (p<0.05 for all). There were no significant correlations between SNIP scores, demographic variables, and other baseline clinical data (p>0.05). Conclusions. The slouched sitting position had a lower SNIP score compared to upright sitting position suggesting a reduced diaphragm tension and movement as a result of altered body posture.

scholarly journals Reference values for respiratory muscle strength in brazilian children: a review

2016 ◽  
Vol 26 (3) ◽  
pp. 374
Author(s):  
Camila Isabel Santos Schivinski ◽  
Renata Maba Gonçalves ◽  
Tayná Castilho
Keyword(s):  
Muscle Strength ◽  
Reference Values ◽  
Respiratory Muscle ◽  
Respiratory Muscles ◽  
Respiratory Muscle Strength ◽  
Significant Difference ◽  
Reference Equations ◽  
Predicted Values ◽  
Brazilian Children

Introduction: Reference values and equations show strong variability and regional differences, despite a well-established role of the assessment of respiratory muscle strength (RMS) in children, with the objective to follow up on diseases that affect the function of respiratory muscles and enable adequate growth and development. Objective: To describe reference values and prediction equations of maximal respiratory pressures for Brazilian children. Methods: Literature review was conducted using databases LILACS, MEDLINE and Science Direct, and descriptors established by DeCS of the Virtual Health Library: reference values, child, respiratory muscle strength, predictive equations and their respective synonyms in English. Results: Six clinical trials were carried out, which determined reference values for children in various Brazilian regions. There was a relationship among RMS values and other factors, such as age, height and body mass. However, there was a significant difference among the data in the Brazilian states and divergence among the predicted values. Conclusion: There is a consensus on the relationship among RMS, anthropometric factors and regional influences. The articles studied reported diverging predicted values and reference equations.

scholarly journals Prevalence of reduced respiratory muscle strength in institutionalized elderly people

2009 ◽  
Vol 127 (2) ◽  
pp. 78-83 ◽  
Author(s):  
Rodrigo Polaquini Simões ◽  
Viviane Castello ◽  
Marco Antonio Auad ◽  
Jadiane Dionísio ◽  
Marisa Mazzonetto
Keyword(s):  
Body Mass Index ◽  
Muscle Strength ◽  
Body Mass ◽  
Respiratory Muscle ◽  
Elderly Women ◽  
Respiratory Muscle Strength ◽  
Cross Sectional ◽  
Institutionalized Elderly ◽  
Anthropometric Characteristics ◽  
Predicted Values

CONTEXT AND OBJECTIVES: Respiratory muscle strength is relevant to the clinical situation of elderly patients, particularly those presenting with respiratory or cardiac diseases. The objectives of this study were to evaluate the respiratory muscle strength of institutionalized elderly women, compare this with predicted values for the Brazilian population and calculate the correlation with age and anthropometric characteristics. DESIGN AND SETTING: Cross-sectional study at the Department of Physiotherapy of Universidade Camilo Castelo Branco. METHODS: The participants were 56 institutionalized elderly women (74.87 ± 10.55 years of age), evaluated in eight institutions in three cities in the central region of the State of São Paulo, between January 2005 and March 2006. They were separated into three subgroups according to age: 60-69 years (n = 20), 70-79 (n = 18) and 80-89 years (n = 18). Maximal respiratory pressures were obtained using a manovacuometer. The values obtained were compared between subgroups and with predicted values. Correlation analysis was used to evaluate age, weight, height and body mass index in relation to maximal respiratory pressures. The significance level was P < 0.05. RESULTS: No significant differences in maximal respiratory pressures were seen between the three subgroups. The maximal respiratory pressures were significantly lower in the three subgroups, compared with predicted values. Negative correlations between maximal respiratory pressures and age and positive correlations in relation to weight, height and body mass index were found. CONCLUSIONS: Respiratory muscle strength was markedly reduced in institutionalized 60 to 89-year-old women and the values demonstrated correlations with age and anthropometric characteristics.

scholarly journals Assessment of respiratory muscle strength in children according to the classification of body mass index

2014 ◽  
Vol 32 (2) ◽  
pp. 250-255 ◽  
Author(s):  
George Jung da Rosa ◽  
Camila Isabel S. Schivinski
Keyword(s):  
Body Mass Index ◽  
Muscle Strength ◽  
Body Mass ◽  
School Children ◽  
Respiratory Muscle ◽  
Forced Expiratory Volume ◽  
The Body ◽  
Respiratory Muscle Strength ◽  
Cross Sectional Survey ◽  
Cross Sectional

OBJECTIVE: To assess and compare the respiratory muscle strength among eutrophic, overweight and obese school children, as well as to identify anthropometric and respiratory variables related to the results.METHODS: Cross-sectional survey with healthy schoolchildren aged 7-9 years old, divided into three groups: Normal weight, Overweight and Obese. The International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire was applied. The body mass index (BMI) was evaluated, as well as the forced expiratory volume in one second (FEV1) with a portable digital device. The maximal inspiratory and expiratory pressures (MIP and MEP) were measured by a digital manometer. Comparisons between the groups were made by Kruskal-Wallis test. Spearman's correlation coefficient was used to analyze the correlations among the variables.RESULTS: MIP of eutrophic school children was higher than MIP found in overweight (p=0.043) and obese (p=0.013) children. MIP was correlated with BMI percentile and weight classification (r=-0.214 and r=-0.256) and MEP was correlated with height (r=0.328). Both pressures showed strong correlation with each other in all analyses (r≥0.773), and less correlation with FEV1 (MIP - r=0.362 and MEP - r=0.494). FEV1 correlated with MEP in all groups (r: 0.429 - 0.569) and with MIP in Obese Group (r=0.565). Age was correlated with FEV1 (r=0.578), MIP (r=0.281) and MEP (r=0.328).CONCLUSIONS: Overweight and obese children showed lower MIP values, compared to eutrophic ones. The findings point to the influence of anthropometric variables on respiratory muscle strength in children.

scholarly journals Static and dynamic evaluation of respiratory muscle strength in asthmatic children and adolescents

2020 ◽  
Vol 20 (4) ◽  
pp. 1009-1016
Author(s):  
Jean Aretakis Cordeiro ◽  
Caroline Palácio Silva ◽  
Murillo Carlos Amorim Britto ◽  
Lívia Barboza Andrade
Keyword(s):  
Muscle Strength ◽  
Children And Adolescents ◽  
Respiratory Muscle ◽  
Inspiratory Muscle ◽  
Healthy Controls ◽  
Respiratory Muscle Strength ◽  
Positive Correlation ◽  
The Mean ◽  
Predicted Values ◽  
Inspiratory Muscle Strength

Abstract Objectives: to evaluate static and dynamic respiratory muscle strength in children and adolescents with asthma. Methods: cross-sectional study, involving 80 children and adolescents, 40 with asthma and 40 healthy controls. Biological and clinical characteristics were analyzed. The analysis of the dynamic inspiratory muscle strength was obtained using the KH5 device of the POWERbreathe® line, while the static evaluation was performed using an analog manova-cuometer. Results: the mean obtained from the S-Index was higher in the control group compared to asthmatics (p = 0.026). There was no statistical difference between MIP values for asthmatics and predicted values (p = 0.056). The MEP results showed a significant difference between the mean of the cases and the predicted values (p = 0.000). There was a positive correlation between height and S-Index (p = 0.002 and r = 0.438). Conclusion: the present study demonstrated that the static inspiratory muscle strength (PImáx) of children and adolescents with asthma in comparison with the values predicted in the literature does not differ, however, when submitted to dynamic assessment (S-Index), it presents higher values in healthy controls. In addition, the S-Index showed a positive correlation with the child's height.

scholarly journals Manual therapy in diaphragm muscle: effect on respiratory muscle strength and chest mobility

2020 ◽  
pp. 1-5 ◽  
Author(s):  
Darling Kescia Araújo Peixoto Braga ◽  
Débora Fortes Marizeiro ◽  
Ana Carolina Lins Florêncio ◽  
Mariana Dias Teles ◽  
Ítalo Caldas Silva ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Manual Therapy ◽  
Respiratory Muscle ◽  
Diaphragm Muscle ◽  
Cavity Method ◽  
Thoracic Cavity ◽  
Respiratory Muscle Strength ◽  
Verbal Command ◽  
Significant Difference ◽  
Maximum Expiratory Pressure

Introduction: Manual therapy uses the hands as a form of healing, being a manipulation for therapeutic purposes. However, there is little evidence of its effects on the respiratory system. Objective: To describe the effect of manual therapy on the diaphragm, on respiratory muscle strength and on the mobility of the thoracic cavity. Method: Descriptive, longitudinal, interventional and quantitative research, performed at the Cardiopneumofunctional Physical Therapy Laboratory of the Federal University of Ceará (UFC). The sample consisted of 40 sedentary female students, aged between 18 and 35 years of the Physiotherapy course of the UFC. The following techniques were performed: “diaphragm lift” and double diaphragm. Data collection was performed in three steps, on the same day and by the same researcher, under a homogeneous verbal command. It was considered statistically significant value of p≤0,05. Results: After applying the techniques, a comparative analysis was performed, which demonstrated a statistically significant difference in the maximum expiratory pressure, with p< 0,0001, and all the coefficients of the cirtometry, being p<0,0025 (axillary), p<0,0085 (xiphoid) and p<0,0005 (basal). Conclusion: Manual therapy techniques performed on the diaphragm exert an influence on muscle strength due to the increase in maximum expiratory pressure and in the mobility of the thoracic cavity, reflected in the increase of the coefficients of the cirtometry.

scholarly journals Decrease in pulmonary function and oxygenation after lung resection

2018 ◽  
Vol 4 (1) ◽  
pp. 00055-2017 ◽  
Author(s):  
Barbara Cristina Brocki ◽  
Elisabeth Westerdahl ◽  
Daniel Langer ◽  
Domingos S.R. Souza ◽  
Jan Jesper Andreasen
Keyword(s):  
Muscle Strength ◽  
Pulmonary Function ◽  
Respiratory Muscle ◽  
Thoracoscopic Surgery ◽  
Lung Resection ◽  
Lung Cancer Surgery ◽  
Forced Expiratory Volume ◽  
Future Research ◽  
Respiratory Muscle Strength ◽  
Curative Intent

Respiratory deficits are common following curative intent lung cancer surgery and may reduce the patient's ability to be physically active. We evaluated the influence of surgery on pulmonary function, respiratory muscle strength and physical performance after lung resection.Pulmonary function, respiratory muscle strength (maximal inspiratory/expiratory pressure) and 6-min walk test (6MWT) were assessed pre-operatively, 2 weeks post-operatively and 6 months post-operatively in 80 patients (age 68±9 years).Video-assisted thoracoscopic surgery was performed in 58% of cases. Two weeks post-operatively, we found a significant decline in pulmonary function (forced vital capacity −0.6±0.6 L and forced expiratory volume in 1 s −0.43±0.4 L; both p<0.0001), 6MWT (−37.6±74.8 m; p<0.0001) and oxygenation (−2.9±4.7 units; p<0.001), while maximal inspiratory and maximal expiratory pressure were unaffected. At 6 months post-operatively, pulmonary function and oxygenation remained significantly decreased (p<0.001), whereas 6MWT was recovered.We conclude that lung resection has a significant short- and long-term impact on pulmonary function and oxygenation, but not on respiratory muscle strength. Future research should focus on mechanisms negatively influencing post-operative pulmonary function other than impaired respiratory muscle strength.

Relationship between respiratory muscle function and age, sex, and other factors

1989 ◽  
Vol 66 (2) ◽  
pp. 943-948 ◽  
Author(s):  
H. I. Chen ◽  
C. S. Kuo
Keyword(s):  
Muscle Strength ◽  
Pulmonary Function ◽  
Duty Cycle ◽  
Muscle Function ◽  
Respiratory Muscle ◽  
Forced Expiratory Volume ◽  
Inspiratory Muscle ◽  
Muscle Endurance ◽  
Respiratory Muscle Strength ◽  
Respiratory Muscle Function

To investigate the effects of gender and age on respiratory muscle function, 160 healthy volunteers (80 males, 80 females) were divided into four age groups. Twenty-eight of the male subjects were smokers. After the subjects were familiarized with the experimental procedure, respiratory muscle strength, inspiratory muscle endurance, and spirometric function, including forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1), FEV1/FVC, tidal volume, breathing rate, and duty cycle, were measured. The respiratory muscle strength was indicated by the maximal static inspiratory and expiratory pressures (PImmax and PEmmax). Inspiratory muscle endurance was determined by the time the subject was able to sustain breathing against an inspiratory pressure load on a modified Nickerson-Keens device. The results showed that 1) except for inspiratory muscle endurance and FEV1/FVC, men had greater respiratory muscle and pulmonary functions than women, 2) respiratory muscle function and pulmonary function decreased with age, 3) smoking tended to lower duty cycle and FEV1/FVC and to enhance PE,mmax, and 4) inspiratory muscle endurance was greater in men who were physically active than in those who were sedentary. Therefore we conclude that there are sexual and age differences in respiratory muscle strength and pulmonary function and that smoking or physical activity may affect respiratory muscle function.

scholarly journals Effect of Inspiratory Muscle Training on Performance of Handball Athletes

2018 ◽  
Vol 63 (1) ◽  
pp. 43-51 ◽  
Author(s):  
Charlini S. Hartz ◽  
Márcio A. G. Sindorf ◽  
Charles R. Lopes ◽  
José Batista ◽  
Marlene A. Moreno
Keyword(s):  
Muscle Strength ◽  
Oxygen Uptake ◽  
Effect Size ◽  
Respiratory Muscle ◽  
Inspiratory Muscle ◽  
Inspiratory Muscle Training ◽  
Respiratory Muscle Strength ◽  
Muscle Training ◽  
Significant Difference ◽  
Small Effect Size

Abstract Inspiratory muscle training (IMT) is a strategy that has been used to improve performance in different sports modalities. This study investigated the effects of an IMT program on respiratory muscle strength and resistance as well as aerobic physical performance (PP) of handball athletes. Nineteen 20 ± 3 year-old male athletes were allocated into an experimental (EG, n = 10) or a placebo group (PG, n = 9). Their respiratory muscle strength was evaluated by measuring the maximum inspiratory and expiratory pressures (MIP and MEP), muscular respiratory resistance by maximum voluntary ventilation (MVV) and aerobic PP by the cardiopulmonary exercise test. The study was designed to evaluate the effects of a 12-week IMT program with five sessions a week. A significant difference was observed in the pre and post IMT values of the MIP (170 ± 34 to 262 ± 33 cmH2O) and MEP (177 ± 36 to 218 ± 37 cmH2O) in the EG, and MIP (173 ± 45 to 213 ± 21 cmH2O) in the PG, with a large effect size for the MIP, when the groups were compared. MVV showed a significant increase (162 ± 24 to 173 ± 30 L) in the EG, with a small effect size. There was a significant difference in maximum oxygen uptake (54 ± 8 to 60 ± 7 ml/kg/min) in aerobic PP. Oxygen uptake at the respiratory compensation point (RCP) (46 ± 6 to 50 ± 5 ml/kg/min), with a moderate effect size for both variables, was observed in the EG after IMT. We concluded that IMT provided a significant increase in respiratory muscle strength and resistance, contributing to increased aerobic PP in the EG, which suggests that IMT could be incorporated in handball players’ training.

scholarly journals Six-minute walk test and respiratory muscle strength in patients with uncontrolled severe asthma: a pilot study

2015 ◽  
Vol 41 (3) ◽  
pp. 211-218 ◽  
Author(s):  
Luiz Fernando Ferreira Pereira ◽  
Eliane Viana Mancuzo ◽  
Camila Farnese Rezende ◽  
Ricardo de Amorim Côrrea
Keyword(s):  
Muscle Strength ◽  
Severe Asthma ◽  
Respiratory Muscle ◽  
University Hospital ◽  
Respiratory Muscle Strength ◽  
Walk Test ◽  
Six Minute Walk Test ◽  
Significant Difference ◽  
Oral Corticosteroids ◽  
Minute Walk

OBJECTIVE: To evaluate respiratory muscle strength and six-minute walk test (6MWT) variables in patients with uncontrolled severe asthma (UCSA). METHODS: This was a cross-sectional study involving UCSA patients followed at a university hospital. The patients underwent 6MWT, spirometry, and measurements of respiratory muscle strength, as well as completing the Asthma Control Test (ACT). The Mann-Whitney test was used in order to analyze 6MWT variables, whereas the Kruskal-Wallis test was used to determine whether there was an association between the use of oral corticosteroids and respiratory muscle strength. RESULTS: We included 25 patients. Mean FEV1 was 58.8 ± 21.8% of predicted, and mean ACT score was 14.0 ± 3.9 points. No significant difference was found between the median six-minute walk distance recorded for the UCSA patients and that predicted for healthy Brazilians (512 m and 534 m, respectively; p = 0.14). During the 6MWT, there was no significant drop in SpO2. Mean MIP and MEP were normal (72.9 ± 15.2% and 67.6 ± 22.2%, respectively). Comparing the patients treated with at least four courses of oral corticosteroids per year and those treated with three or fewer, we found no significant differences in MIP (p = 0.15) or MEP (p = 0.45). CONCLUSIONS: Our findings suggest that UCSA patients are similar to normal subjects in terms of 6MWT variables and respiratory muscle strength. The use of oral corticosteroids has no apparent impact on respiratory muscle strength.

scholarly journals Respiratory Muscle Performance and the Perception of Dyspnea in Parkinson's Disease

2002 ◽  
Vol 29 (1) ◽  
pp. 68-72 ◽  
Author(s):  
Paltiel Weiner ◽  
Rivka Inzelberg ◽  
Avi Davidovich ◽  
Puiu Nisipeanu ◽  
Rasmi Magadle ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Muscle Strength ◽  
Respiratory Muscle ◽  
Respiratory Muscles ◽  
Normal Subjects ◽  
Forced Expiratory Volume ◽  
Muscle Performance ◽  
Respiratory Muscle Strength ◽  
Before And After

Background:Pulmonary and respiratory muscle function impairment are common in patients with Parkinson's disease (PD). However, dyspnea is not a frequent complaint among these patients, although it is well documented that the intensity of dyspnea is related to the activity and the strength of the respiratory muscles.Patients and Methods:We studied pulmonary function, respiratory muscle strength and endurance and the perception of dyspnea (POD) in 20 patients with PD (stage II and III Hoehn and Yahr scale) before and after their first daily L-dopa dose. Respiratory muscle strength was assessed by measuring the maximal inspiratory and expiratory mouth pressures (PImax and PEmax), at residual volume (RV) and total lung capacity (TLC) respectively. The POD was measured while the subject breathed against progressive load and dyspnea was rated using a visual analog scale.Results:Respiratory muscle strength and endurance were decreased and the POD was increased during the off medication period compared to normal subjects. There was a nonsignificant trend to an increase in PImax, PEmax and endurance after L-dopa intake. The POD of PD patients decreased (p<0.05) following medication, although, it remained increased (p<0.01) as compared to the normal subjects. Even if patients had spirometry data showing a mild restrictive pattern, before medication, both forced vital capacity (FVC) and forced expiratory volume (FEV)1 remained almost identical after L-dopa intake.Conclusions:Patients with PD have higher POD, compared to normal subjects and this increased perception is attenuated when the patients are on dopaminergic medication. The change in the POD is not related to changes in respiratory muscle performance or pulmonary functions. A central effect or a correction of uncoordinated respiratory movements by L-dopa may contribute to the decrease in POD following L-dopa treatment.

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