Respiratory muscle strength of Brazilian adolescents: obtained and predicted values

Furtado, Priscilla Rique; Campos, Tânia; Mendes, Raquel Emanuele de França; Freitas, Diana Amélia de; Chaves, Gabriela; Macêdo, Thalita Medeiros Fernandes de; Mendonça, Karla Morganna Pereira Pinto de

doi:10.7322/jhgd.81035

Cited by 3 publications

(3 citation statements)

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“…8 In healthy adolescents, the mean MIP was reported as 74.6 and 103.5 cm H 2 O, and the mean MEP was reported as 86.2 and 120.1 cm H 2 O for girls and boys, respectively. 28 Previously, inspiratory and respiratory muscle strengths were shown to be under the norm in IS, with averages of 76.6 and 79.5 for MIP and MEP, respectively. 14 In this study, MIP and MEP scores of patients with IS (with averages of 43.8 and 50.8 cm H 2 O) were both under the norm and less than those found in other studies on IS.…”

Section: Discussionmentioning

confidence: 96%

In-brace alterations of pulmonary functions in adolescents wearing a brace for idiopathic scoliosis

Yağcı

Demirkıran

Yakut

2019

Prosthetics &Amp; Orthotics International

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Background: Despite the common use of braces to prevent curve progression in idiopathic scoliosis, their functional effects on respiratory mechanics have not been widely studied. Objective: The objective was to determine the effects of bracing on pulmonary function in idiopathic scoliosis. Methods: A total of 27 adolescents with a mean age of 14.5 ± 1.5 years and idiopathic scoliosis were included in the study. Pulmonary function evaluation included vital capacity, forced expiratory volume, forced vital capacity, maximum ventilator volume, peak expiratory flow, and respiratory muscle strengths, measured with a spirometer, and patient-reported degree of dyspnea. The tests were performed once prior to bracing and at 1 month after bracing (while the patients wore the brace). Results: Compared with the unbraced condition, vital capacity, forced expiratory volume, forced vital capacity, maximum ventilator volume, and peak expiratory flow values decreased and dyspnea increased in the braced condition. Respiratory muscle strength was under the norm in both unbraced and braced conditions, while no significant difference was found for these parameters between the two conditions. Conclusion: The spinal brace for idiopathic scoliosis tended to reduce pulmonary functions and increase dyspnea symptoms (when wearing a brace) in this study. Special attention should be paid in-brace effects on pulmonary functions in idiopathic scoliosis. Clinical relevance Bracing seems to mimic restrictive pulmonary disease, although there is no actual disease when the brace is removed. This study suggests that bracing may result in a deterioration of pulmonary function when adolescents with idiopathic scoliosis are wearing a brace.

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Section: Discussionmentioning

confidence: 96%

In-brace alterations of pulmonary functions in adolescents wearing a brace for idiopathic scoliosis

Yağcı

Demirkıran

Yakut

2019

Prosthetics &Amp; Orthotics International

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“…Regarding the higher RMS values among boys presented in this study, the literature highlights that this factor can be explained by the difference in body dimensions between boys and girls, with greater production of muscle mass in boys, as a result of higher levels of testosterone [5,7,16,17,[25][26][27].…”

Section: Discussionmentioning

confidence: 72%

Respiratory Muscle Strength in Brazilian Adolescents: Impact of Body Composition

de Lima,

Marquezi,

Alcantara

et al. 2023

Obesities

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(1) Introduction: Studies on respiratory muscle strength (RMS) in adolescents are controversial. Few studies so far have investigated respiratory muscle strength in Brazilian adolescents and the impact of body composition on it. (2) Objective: to evaluate the respiratory muscle strength of Brazilian adolescents and compare this with nationally and internationally predicted normality values. (3) Method: A cross-sectional study (CAEE: 34634414.5.0000.5479) was carried out with 98 adolescents, where both sexes were divided into four groups: eutrophic (n = 44); overweight (n = 15), obese (n = 25), and severely obese (n = 14). All were submitted to an anthropometric assessment, body composition analysis and manovacuometry. To interpret the results, Analysis of Variance (ANOVA) with Turkey’s post hoc test was used. The Kruskal–Wallis test and Friedman’s post hoc test were used to compare the observed vs. proposed results. A p-value < 0.05 was considered statistically significant. (4) Results: There were no differences among the groups for maximal inspiratory (MIP) and expiratory (MEP) pressures. However, when considering the total sample, we could say that RMS was higher among boys, and there were no significant differences in RMS in relation to the maturational stage. The values obtained for MIP were lower than those suggested for the national equation and higher than those proposed for the international equation. Similarly, the values obtained for MEP were lower than those suggested for the national and international equation. (5) Conclusions: RMS was similar in adolescents with different body compositions and different maturation stages. Adiposity did not interfere with RMS in adolescents. Boys had higher MIP and MEP values compared to girls. Therefore, the reference values proposed by the equations do not consistently match RMS in the adolescents studied. This context reinforces the need for new studies that are related to RMS to establish normality values and propose equations that represent the youth population.

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“…Maximal effort can be maintained from 1 to 3 s. The evaluation will be considered complete when the individual performs the maneuver three to five times, with 1-min intervals, to obtain at least two acceptable measures [50, 51]. The reference values will be based on the study by Furtado et al (2014) [52].…”

Section: Methodsmentioning

confidence: 99%

Effects of aerobic interval training on glucose tolerance in children and adolescents with cystic fibrosis: a randomized trial protocol

Monteiro

Azevedo

Jales

et al. 2019

Trials

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BackgroundIndividuals with cystic fibrosis (CF) may develop CF-related diabetes (CFDR). This comorbidity is related to a poorer quality of life, microvascular complications, a decline in lung function, and an increase in exacerbations, as well as delayed growth and puberty. Evidence exists that physical exercise contributes to glycemic control in individuals with non-CF-related diabetes. This exercise is usually continuous with moderate intensity and long duration, which can cause muscle dyspnea and fatigue in CF individuals. Aerobic interval training (AIT) emerges as a safe and effective alternative for treating these individuals. The objective of this study is to evaluate the effects of AIT on glucose tolerance in children and adolescents with CF.MethodsThis study will be a two-arm, prospectively registered, randomized controlled trial with blind assessors and twenty 6- to 18-year-old individuals with cystic fibrosis (CF) from two different Brazilian states. People with CF will be randomly allocated to either the experimental or control group using block randomization, stratified by puberty stage,. Participants from both groups will receive an educational intervention and will be asked to continue their usual daily treatment for the full duration of the study. Those in the experimental group will perform AIT on a cycle ergometer at home three times a week, for 8 consecutive weeks. The sample characterization will include an assessment of puberty stage, socioeconomic status, dyspnea, and anthropometry. The primary outcome will be the change in glucose tolerance, while the secondary outcomes will include lung function, exercise tolerance, respiratory muscle strength, quality of life, and CF exacerbations. All outcomes will be assessed at baseline, week 9, and week 17.DiscussionThis is the first study to evaluate the effects of AIT on glucose tolerance in children and adolescents with CF. This study will serve as a basis for guiding clinical practice and decision-making in treating glucose intolerance and CF-related diabetes (CFRD) in children and adolescents with CF.Trial registrationClinicalTrials.gov Protocol Registration System: NCT03653949. Registered on August 31, 2018.

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Respiratory muscle strength of Brazilian adolescents: obtained and predicted values

Cited by 3 publications

References 20 publications

In-brace alterations of pulmonary functions in adolescents wearing a brace for idiopathic scoliosis

In-brace alterations of pulmonary functions in adolescents wearing a brace for idiopathic scoliosis

Respiratory Muscle Strength in Brazilian Adolescents: Impact of Body Composition

Effects of aerobic interval training on glucose tolerance in children and adolescents with cystic fibrosis: a randomized trial protocol

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