A comparative study on the effect of increased body mass index on pulmonary function and respiratory muscle strength in young adults

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.

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

Revista Paulista de Pediatria ◽

10.1590/0103-0582201432210313 ◽

2014 ◽

Vol 32 (2) ◽

pp. 250-255 ◽

Cited By ~ 6

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.

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Respiratory muscle strength and pulmonary functions in athletes: differences by BMI classiﬁcations

10.31083/jomh.2021.076 ◽

2021 ◽

Keyword(s):

Body Mass Index ◽

Muscle Strength ◽

Body Mass ◽

Respiratory Muscle ◽

Respiratory Muscle Strength ◽

Respiratory Capacity ◽

Study Methods ◽

Pulmonary Functions ◽

Constant Control ◽

Anthropometric Characteristics

Background and objective: The respiratory capacity, which substantially affects exercise perfor-mance, tends to be affected by many factors such as anthropometric characteristics and different sports branches. We know which body mass index (BMI) category negatively affects pulmonary functions (PFs) in sedentary, but it is unclear in the athlete population. Thus, the ﬁrst aim of this study was to compare respiratory muscle strength (RMS) and PFs in athletes according to BMI categories. Furthermore, we examined whether different sports disciplines affect RMS and PFs as a second aim in the study. Methods: Athletes were divided into four groups according to BMI categories (<18.5, 18.5–24.9, 25.0–29.9, and ≥30.0 kg/m2) and two groups (individual and team) according to their sport disciplines. Results: The results showed that signiﬁcant differences in MIP (cmH2O), MEP (cmH2O), FVC (lt), and FEV1 (lt) scores according to BMI categories (p < 0.001 and p < 0.05). We found that the highest RMS scores were in the 18.5–24.9 and 25.0–29.9 kg/m2 BMI categories (p < 0.001 and p < 0.05). Also, it was revealed that individual athletes' MIP, MEP, FVC, and FEV1 scores were higher than others in sports disciplines (p < 0.001 and p < 0.05). Conclusion: These ﬁndings suggest that athletes' best RMS and PFs scores can be obtained in the 18.5-24.9 or 25.0-29.9 kg/m2 BMI categories. Accordingly, we consider that different BMI values have varied effects on the athletes' respiratory capacities and should be kept under constant control. Also, individual athletes had the highest RMS and PFs due to the characteristics of sports disciplines.

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A Comparative Study Of Variation Of Foot Arch Index With Body Mass Index Among Young Adults

Innovative Journal of Medical and Health Science ◽

10.15520/ijmhs.2016.vol6.iss2.109. ◽

2016 ◽

Vol 6 (2) ◽

Keyword(s):

Body Mass Index ◽

Young Adults ◽

Comparative Study ◽

Body Mass ◽

Foot Arch ◽

Arch Index

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Effects of transcutaneous electrical nerve stimulation on pain, pulmonary function, and respiratory muscle strength in the postoperative period of thoracic surgery in an intensive care unit

Journal of Critical Care ◽

10.1016/j.jcrc.2017.09.141 ◽

2017 ◽

Vol 42 ◽

pp. 414

Author(s):

Hermann Heinrich Husch ◽

Pauline Lopes Carvalho ◽

Camila da Cunha Niedermeyer ◽

Adriana Kessler ◽

Graciele Sbruzzi

Keyword(s):

Intensive Care Unit ◽

Intensive Care ◽

Muscle Strength ◽

Thoracic Surgery ◽

Pulmonary Function ◽

Postoperative Period ◽

Transcutaneous Electrical Nerve Stimulation ◽

Respiratory Muscle ◽

Respiratory Muscle Strength ◽

Electrical Nerve Stimulation

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Monitoring respiratory muscle strength assists in early diagnosis of respiratory dysfunction as opposed to the isolated use of pulmonary function evaluation in amyotrophic lateral sclerosis

Arquivos de Neuro-Psiquiatria ◽

10.1590/s0004-282x2013000300004 ◽

2013 ◽

Vol 71 (3) ◽

pp. 146-152 ◽

Cited By ~ 6

Author(s):

Guilherme Fregonezi ◽

Palomma Russelly Saldanha Araújo ◽

Tathiana Lindemberg Ferreira Macêdo ◽

Mario Emilio Dourado Junior ◽

Vanessa Regiane Resqueti ◽

...

Keyword(s):

Amyotrophic Lateral Sclerosis ◽

Muscle Strength ◽

Early Diagnosis ◽

Pulmonary Function ◽

Healthy Subjects ◽

Respiratory Muscle ◽

Function Evaluation ◽

Respiratory Muscle Strength ◽

Respiratory Dysfunction ◽

Lateral Sclerosis

ObjectiveIt was study the relationship between respiratory muscle strength and forced vital capacity (FVC) in patients with amyotrophic lateral sclerosis (ALS) versus healthy subjects.MethodsPulmonary function and respiratory muscle strength [maximal inspiratory (PImax), maximal expiratory (PEmax) and sniff nasal inspiratory pressure (SNIP)] were assessed in patients with ALS and healthy subjects, matched using cutoffs established in the literature for impaired pulmonary function and respiratory muscle weakness.ResultsTwenty-eight ALS patients and 28 healthy subjects were studied. We found sensitivity and specificity for PImax, PEmax and SNIP of 75/58%, 81/67% and 75/67%. The Receiver Operating Characteristic curve (ROC curve) indicated that the variables PImax, PEmax and SNIP can identify differences in respiratory muscle strength between ALS and healthy individuals at 0.89, 0.9 and 0.82, respectively. A positive correlation was recorded between FVC (%) versus SNIP, PImax and PEmax.ConclusionIn ALS, monitoring respiratory muscle strength assists in early diagnosis of respiratory dysfunction as opposed to the isolated use of FVC.

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Influence of a Six-Week Swimming Training with Added Respiratory Dead Space on Respiratory Muscle Strength and Pulmonary Function in Recreational Swimmers

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph17165743 ◽

2020 ◽

Vol 17 (16) ◽

pp. 5743 ◽

Cited By ~ 1

Author(s):

Stefan Szczepan ◽

Natalia Danek ◽

Kamil Michalik ◽

Zofia Wróblewska ◽

Krystyna Zatoń

Keyword(s):

Muscle Strength ◽

Pulmonary Function ◽

Dead Space ◽

Respiratory Muscle ◽

Moderate Intensity ◽

Respiratory Muscle Strength ◽

Swimming Training ◽

Respiratory Muscle Fatigue ◽

Front Crawl ◽

Respiratory Dead Space

The avoidance of respiratory muscle fatigue and its repercussions may play an important role in swimmers’ health and physical performance. Thus, the aim of this study was to investigate whether a six-week moderate-intensity swimming intervention with added respiratory dead space (ARDS) resulted in any differences in respiratory muscle variables and pulmonary function in recreational swimmers. A sample of 22 individuals (recreational swimmers) were divided into an experimental (E) and a control (C) group, observed for maximal oxygen uptake (VO2max). The intervention involved 50 min of front crawl swimming performed at 60% VO2max twice weekly for six weeks. Added respiratory dead space was induced via tube breathing (1000 mL) in group E during each intervention session. Respiratory muscle strength variables and pulmonary and respiratory variables were measured before and after the intervention. The training did not increase the inspiratory or expiratory muscle strength or improve spirometric parameters in any group. Only in group E, maximal tidal volume increased by 6.3% (p = 0.01). The ARDS volume of 1000 mL with the diameter of 2.5 cm applied in moderate-intensity swimming training constituted too weak a stimulus to develop respiratory muscles and lung function measured in the spirometry test.

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