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 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.

Abstract 2395: Respiratory Muscle Weakness in Acute Stroke Patients

Stroke ◽  
2012 ◽  
Vol 43 (suppl_1) ◽  
Author(s):  
Ross Pollock ◽  
Ged Rafferty ◽  
John Moxham ◽  
Lalit Kalra
Keyword(s):  
Systematic Review ◽  
Muscle Strength ◽  
Acute Stroke ◽  
Muscle Weakness ◽  
Respiratory Muscle ◽  
Mean Difference ◽  
Respiratory Muscle Strength ◽  
Inclusion Criteria ◽  
Stroke Patients ◽  
Respiratory Muscle Weakness

Background: Increased frequency of chest infections in acute stroke patients may be the result of respiratory muscle weakness contributing to a weak cough and poor airway clearance. We undertook a systematic review of studies comparing respiratory muscle strength in acute stroke patients with age-matched controls. Method: A systematic review of literature was performed using the electronic databases Medline, EMBASE, ISI web of knowledge and the Scopus. The key words searched were stroke or cerebrovascular accident in combination with cough, inspiratory, expiratory or respiratory and strength or weakness. Studies were included if they compared stroke patients with age matched controls and measured maximum inspiratory or expiratory mouth pressure (PImax and PEmax) for inspiratory and expiratory muscle strength respectively. Results: The initial search identified 136 articles, 14 of which remained after screening for pre-defined inclusion criteria and removal of duplicates. Eleven were excluded after reviewing abstracts (5 did not assess muscle strength, 5 did not include healthy control group, 1 absolute values could not be obtained). A further study was identified from the reference lists of screened articles. The 4 studies that met inclusion criteria included 121 subjects. Mean PImax ranged from 75-99 cmH 2 O in controls and 37-74 cmH 2 O in stroke patients. (mean difference 41 cmH 2 O, 95% CI 54 to 29 cm H 2 O; P<0.0001). Mean PEmax ranged from 52-89 cm H 2 O in stroke patients and was also reduced compared with age matched controls (mean difference 55 cmH 2 O, 95% CI 61 to 48 cmH 2 O; P<0.0001). ( Fig 1 ). Conclusion: Individual studies and pooled data suggest that respiratory muscle strength is impaired in acute stroke patients. However, these studies are limited by small samples and design heterogeneity. Larger studies are needed to assess the relationship of respiratory muscle weakness with chest infections and clinical outcomes in the acute phase.

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 Influence of heat and moisture exchanger use on measurements performed with manovacuometer and respirometer in healthy adults

2015 ◽  
Vol 11 ◽  
Author(s):  
Jeanette Janaina Jaber Lucato ◽  
Thiago Marraccini Nogueira da Cunha ◽  
Sara Solange Oliveira Costa Rocha ◽  
Fernanda Maria Palmieri de Carvalho ◽  
Daniele Cristina Botega ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Respiratory Muscle ◽  
Vital Capacity ◽  
Pulmonary Infection ◽  
Healthy Adults ◽  
Respiratory Muscle Strength ◽  
Maximal Inspiratory Pressure ◽  
Moisture Exchanger ◽  
Significant Difference ◽  
Heat And Moisture

Background: The use of evaluation tools such as the manovacuometer and respirometer is frequent and disinfection is usually limited to the external surfaces, which is insufficient and raises concerns because of the potential spread of infectious diseases. Hydrophobic heat and moisture exchangers (HME) are used in mechanical ventilation and have microbiological filters, which can possibly reduce contamination, increasing the safety of related procedures. It is unknown, however, if the addition of an exchanger affects the measurements obtained. Aim of this study was to verify if the use of an HME interferes in maximal inspiratory and expiratory pressures assessed using the manovacuometer and vital capacity evaluated using the respirometer in healthy adults. Methods: A controlled transversal trial was carried out. Twenty healthy young adults were included in the study. Vital capacity by respirometer and, maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) were assessed with and without the use of HME. Results: No significant difference was found between the values pre and post HME use in vital capacity measurements: (3878.8 ± 202.2 mL vs. 3925.5 ± 206.0 mL, p = 0.116) and the respiratory muscle strength measurements: MIP (−99.0 ± 8.9 vs −95.5 ± 9.0 cm H2O, p = 0.149) and MEP (92.5 ± 7.5 vs 92.5 ± 7.7 cm H2O, p = 1.0) respectively. Conclusion: We conclude that the use of HME does not modify the lung volumes or respiratory muscle strength, and can be used in order to reduce the occurrence of pulmonary infection.

scholarly journals Effect of inspiratory muscle loaded exercise training on peak oxygen uptake and ventilatory response during incremental exercise under normoxia and hypoxia

2019 ◽  
Author(s):  
Takeshi Ogawa ◽  
Maiko Nagao ◽  
Naoto Fujii ◽  
Takeshi NIshiyasu
Keyword(s):  
Muscle Strength ◽  
Exercise Training ◽  
Exercise Performance ◽  
Respiratory Muscle ◽  
Work Capacity ◽  
Peak Oxygen Uptake ◽  
Inspiratory Muscle ◽  
Respiratory Muscle Strength ◽  
Maximal Inspiratory Pressure ◽  
Muscle Training

Abstract Background: Although numerous studies have reported the effect of inspiratory muscle training for improving exercise performance, the outcome of whether exercise performance is improved by inspiratory muscle training is controversial. Therefore, this study investigated the influence of inspiratory muscle-loaded exercise training (IMLET) on peak oxygen uptake (VO2peak), respiratory responses, and exercise performance under normoxic (N) and hypoxic (H) exercise conditions. We hypothesised that IMLET enhances respiratory muscle strength and improves respiratory response, thereby improving VO2peak and work capacity under H condition. Methods: Sixteen university track runners (13 men and 3 women) were randomly assigned to the IMLET (n=8) or exercise training (ET) group (n=8). All subjects underwent 4 weeks of 20-min 60% VO2peak cycling exercise training, thrice per week. IMLET loaded 50% of maximal inspiratory pressure during exercise. At pre- and post-training periods, subjects performed exhaustive incremental cycling under normoxic (N; 20.9 ± 0%) and hypoxic (H; 15.0 ± 0.1%) conditions. Results: Although maximal inspiratory pressure (PImax) significantly increased after training in both groups, the extent of PImax increase was significantly higher in the IMLET group (from 102 ± 20 to 145 ± 26 cmH2O in IMLET; from 111± 23 to 127 ± 23 cmH2O in ET; P < 0.05). In both groups, VO2peak and maximal work load (Wmax) similarly increased both under N and H conditions after training (P < 0.05). Further, the extent of Wmax decrease under H condition was lower in the IMLET group at post-training test than at pre-training (from -14.7 ± 2.2% to -12.5 ± 1.7%; P < 0.05). Maximal minute ventilation in both N and H conditions increased after training than in the pre-training period. Conclusions: Our IMLET enhanced the respiratory muscle strength, and the decrease in work capacity under hypoxia was reduced regardless of the increase VO2peak.

scholarly journals Effect of inspiratory muscle-loaded exercise training on peak oxygen uptake and ventilatory response during incremental exercise under normoxia and hypoxia 

2020 ◽  
Author(s):  
Takeshi Ogawa ◽  
Maiko Nagao ◽  
Naoto Fujii ◽  
Takeshi NIshiyasu
Keyword(s):  
Muscle Strength ◽  
Exercise Training ◽  
Exercise Performance ◽  
Respiratory Muscle ◽  
Work Capacity ◽  
Peak Oxygen Uptake ◽  
Inspiratory Muscle ◽  
Respiratory Muscle Strength ◽  
Maximal Inspiratory Pressure ◽  
Muscle Training

Abstract Background: Although numerous studies have reported the effect of inspiratory muscle training for improving exercise performance, the outcome of whether exercise performance is improved by inspiratory muscle training is controversial. Therefore, this study investigated the influence of inspiratory muscle-loaded exercise training (IMLET) on peak oxygen uptake (VO2peak), respiratory responses, and exercise performance under normoxic (N) and hypoxic (H) exercise conditions. We hypothesised that IMLET enhances respiratory muscle strength and improves respiratory response, thereby improving VO2peak and work capacity under H condition.Methods: Sixteen university track runners (13 men and 3 women) were randomly assigned to the IMLET (n=8) or exercise training (ET) group (n=8). All subjects underwent 4 weeks of 20-min 60% VO2peak cycling exercise training, thrice per week. IMLET loaded 50% of maximal inspiratory pressure during exercise. At pre- and post-training periods, subjects performed exhaustive incremental cycling under normoxic (N; 20.9 ± 0%) and hypoxic (H; 15.0 ± 0.1%) conditions. Results: Although maximal inspiratory pressure (PImax) significantly increased after training in both groups, the extent of PImax increase was significantly higher in the IMLET group (from 102 ± 20 to 145 ± 26 cmH2O in IMLET; from 111 ± 23 to 127 ± 23 cmH2O in ET; P<0.05). In both groups, VO2peak and maximal work load (Wmax) similarly increased both under N and H conditions after training (P<0.05). Further, the extent of Wmax decrease under H condition was lower in the IMLET group at post-training test than at pre-training (from -14.7 ± 2.2% to -12.5 ± 1.7%; P<0.05). Maximal minute ventilation in both N and H conditions increased after training than in the pre-training period. Conclusions: Our IMLET enhanced the respiratory muscle strength, and the decrease in work capacity under hypoxia was reduced regardless of the increase in VO2peak.

scholarly journals Physical activity and respiratory muscle strength in elderly: a systematic review

2014 ◽  
Vol 27 (1) ◽  
pp. 129-139 ◽  
Author(s):  
Fabio Dutra Pereira ◽  
Wagner Oliveira Batista ◽  
Patrícia dos Santos Claro Fuly ◽  
Edmundo de Drummond Alves Junior ◽  
Elirez Bezerra da Silva
Keyword(s):  
Physical Activity ◽  
Muscle Strength ◽  
Muscle Function ◽  
Respiratory Muscle ◽  
Training Programs ◽  
Functional Decline ◽  
Respiratory Muscles ◽  
Respiratory Muscle Strength ◽  
Inclusion Criteria ◽  
Physically Active

Introduction The aging will inevitably bring some kind of functional decline in elderly, sarcopenia in this sense stands out because it damages the muscle function and extend also to the respiratory muscles. Objective Systematically review studies that have sought to compare the strength of respiratory muscles between sedentary and physically active elderly in training programs nonspecific respiratory musculature. Materials and methods From the descriptors motor activity, respiratory muscles and elderly, the databases LILACS, MedLine, Cochrane, PEDro, Scirus and Redalyc were consulted. Results Of 1.263 experiments available in said databases, 12 were recovered and 6 were selected due they meet all the inclusion criteria and selection requirements. Conclusion Physical activity programs offered by the selected studies led physically active elderly to have respiratory muscle strength statistically higher than the sedentary. However, this condition did not expressed itself as security to these elderly to present strength levels above of the minimum predictive of normality.

scholarly journals Role of Respiratory Muscle Strength using MIP Testing Following COVID-19 Infection

2020 ◽  
Author(s):  
Anita Agrawal ◽  
Vivek Nalgirkar
Keyword(s):  
Muscle Strength ◽  
Respiratory Muscle ◽  
Muscular Atrophy ◽  
Muscle Performance ◽  
Inspiratory Pressure ◽  
Respiratory Muscle Strength ◽  
Maximal Inspiratory Pressure ◽  
Increased Risk ◽  
Muscle Impairment

Maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) are measures of respiratory muscle strength and may be more sensitive in detecting early respiratory muscle impairment compared with spirometry. Respiratory muscle strength is a proven conjecturer of many diseases like muscular dystrophy, neuromuscular disease, amyotrophic lateral sclerosis and spinal muscular atrophy. Maximal inspiratory pressure is gaining interest as a test to improvise impaired respiratory muscle strength of COVID-19 patients following infection. The primary aim of this study is to discuss the potential role of respiratory muscle performance followed by coronavirus infection. The sensitivity and specificity of MIP and MEP was estimated on patients suffering with chronic lung disease. This study proposes a hypothesis that aims to screen for respiratory muscle impairment in patients with dyspnea or characteristics associated with increased risk of severe respiratory complaints.

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