Preferência por comportamentos favoráveis à prática de atividade física em crianças com sintomas de asma e/ou rinite / Preference for behavior conducive to physical activity in children with symptoms of asthma and/or rhinitis

Introdução: A asma e a rinite parecem influenciar de diversas formas aspectos da vida das crianças, incluindo o comprometimento do nível de atividade física. Objetivo: Analisar a preferência por comportamentos favoráveis à prática de atividade física e o nível de atividade física de crianças de 6 a 7 anos com sintomas de asma e/ou rinite em uma cidade do Sul do Brasil. Método: Foi realizado um estudo transversal, que estimou a presença de sintomas de asma e de rinite através do questionário International Study of Asthma and Allergy in Childhood e sua relação com a preferência por comportamentos favoráveis à prática de atividade física e com o nível de atividade física avaliados com o Netherlands Physical Activity Questionnaire. O teste t de Student foi utilizado para verificar a associação entre as variáveis independentes e os comportamentos favoráveis à prática de atividade física e o nível de atividade física. ANOVA uma via, seguida do teste post hoc de Tukey foram utilizados para comparar os comportamentos favoráveis à prática de atividade física e o nível de atividade física entre grupos. Resultados: Participaram do estudo 282 crianças, nestas os sintomas de rinite foram os mais prevalentes, presentes em 20,2% das crianças. A associação de sintomas de asma e rinite foi constatada em 17,7% das crianças, e a presença isolada de sintomas de asma em 12,1%. Em relação ao nível de atividade física, os meninos obtiveram pontuação significativamente maior em relação à preferência por brincadeiras agitadas (p = 0,02) e prática de esportes (p = 0,01), o mesmo para crianças com sintomas de asma ou rinite. Conclusão: Não foi detectada relação entre o nível de atividade física e os sintomas de asma e rinite entre os participantes.

Introduction: Asthma and rhinitis seem to influence different aspects of children's lives, including impairment of physical activity level. Objective: To analyze preference for behaviors conducive to physical activity and level of physical activity in children aged 6 to 7 years with symptoms of asthma and/or rhinitis in a city in southern Brazil. Methods: This cross-sectional study evaluated the presence of symptoms of asthma and rhinitis using the International Study of Asthma and Allergy in Childhood questionnaire and its association with behavior conducive to physical activity and with physical activity levels, which were evaluated with the Netherlands Physical Activity Questionnaire. Student's t-test was used to assess if independent variables were associated with behavior conducive to physical activity and physical activity levels. One-way ANOVA followed by Tukey's post hoc test were used to compare behavior conducive to physical activity and physical activity levels between groups. Results: In total, 282 children participated in the study, and the most prevalent symptoms were those of rhinitis, present in 20.2% of children. The association of asthma and rhinitis symptoms was found in 17.7% of children, and the presence of asthma symptoms alone was found in 12.1%. Regarding the level of physical activity, boys obtained a significantly higher score in relation to their preference for active games (p = 0.02) and sports (p = 0.01), the same for children with symptoms of asthma or rhinitis. Conclusion: There was no relationship between level of physical activity and symptoms of asthma and rhinitis among the participants.

Fatores associados aos sintomas de doenças atópicas em crianças de 6-7 anos em um município da Região Sul do Brasil / Factors associated with the symptoms of atopic diseases in children aged 6-7 years in a municipality in southern Brazil

Introdução: Considerando que os mecanismos pelos quais as doenças atópicas têm aumentado em frequência e gravidade não são inteiramente conhecidos, o presente estudo tem por objetivo analisar os fatores associados aos sintomas das doenças atópicas em crianças de 6-7 anos. Método: Estudo observacional do tipo caso-controle realizado com crianças de 6-7 anos em uma cidade do Sul do Brasil. Questionários foram aplicados às mães das crianças, e os sintomas de doenças atópicas foram triados pelo questionário do International Study of Asthma and Allergy in Childhood (ISAAC). Resultados: Participaram do estudo 255 crianças (85 casos e 170 controles). Os fatores associados às doenças atópicas foram: história familiar de asma (OR: 4,61; IC95% 2,63-0,73), rinite (OR: 3,46; IC95% 1,90-3,26) e eczema (OR: 3,42; IC95% 1,91-6,14), corrimento vaginal na gestação (OR: 4,25; IC95% 2,31-7,84), icterícia neonatal (OR: 2,38; IC95% 1,21-4,68), infecções respiratórias dos tratos superior e inferior (OR: 3,75; IC95% 2,13-3,62; OR: 3,68; IC95% 2,00-6,76, respectivamente), refluxo gastroesofágico (OR: 3,83; IC95% 1,87-7,82), além do tabagismo domiciliar (OR: 2,00; IC95% 1,10-3,64), mofo/umidade no quarto (OR = 3,34; IC95% 1,82-6,12) e animais em casa (OR: 1,77 IC95% 1,04-3,02). Conclusão: Casos de atopia estão associados a história familiar, infecções gestacionais maternas e neonatal, além de variáveis ambientais como o tabagismo e mofo.

Introduction: Considering that the mechanisms by which atopic diseases have increased in frequency and severity are not entirely known, the present study aims to analyze the factors associated with symptoms of atopic diseases in children aged 6-7 years. Method: This case-control observational study recruited children aged 6-7 years in a city in southern Brazil. The questionnaires were administered to the children's mothers and the symptoms of atopic diseases were screened through the International Study of Asthma and Allergy in Childhood (ISAAC) questionnaire. Results: The study included 255 children (85 cases and 170 controls). Factors associated with atopic diseases were family history of asthma (OR: 4.61; 95% CI: 2.63-0.73), rhinitis (OR: 3.46; 95% CI: 1.90- 3.26), eczema (OR: 3.25; 95% CI: 1.91-6.14), vaginal discharge during pregnancy (OR: 4.25; 95% CI: 2.31-7.84), neonatal hyperbilirubinemia (OR: 2.38; 95% CI: 1.21-4.68), upper and lower respiratory infections (OR: 3.75; 95% CI: 2.13-3.62; and OR: 3.68; 95% CI: 2.00-6.76, respectively), gastroesophageal reflux (OR: 3.83; 95% CI: 1.87-7.82), in addition to household smoking (OR: 2.00; 95% CI: 1.10-3.64), mold in the bedroom (OR: 3.34; 95% CI: 1.82-6.12) and pets at home (OR: 1.77; 95% CI: 1.04-3.02). Conclusion: Cases of atopic diseases are associated with family history, maternal and neonatal infections, and environmental exposures such as smoking and mold.

Risk and protective factors for childhood asthma and wheezing disorders in the first 1,000 days of life: a systematic review of meta-analyses

INTRODUCTION: The first 1,000 days of life of a child, the period from conception to the end of the second year, is a critical stage for the development of respiratory and immune systems. Many factors occurred in this period may be associated to risk of asthma in childhood OBJECTIVE: To condense evidence about risk and protective factors for childhood asthma and/or wheezing disorders occurred in the first 1,000 days of life. METHODS: MEDLINE, CINAHL, and SCOPUS databases were searched. Systematic reviews with meta-analysis, or meta-analysis of observational and interventional studies on risk or protective factors for childhood asthma/wheeze, emphasizing the period between the conception and two first years of age, were included. The quality of studies was evaluated by the Assess Systematic Reviews tool. The pooled odds ratio, 95% confidence interval and homogeneity among studies were analyzed. RESULTS: Thirty-five studies met the inclusion criteria, with good methodological quality. Parental history of asthma; maternal weight gain during pregnancy, urogenital infections, psychological stress, and smoking; caesarean section; preterm birth; birth weight; and neonatal hyperbilirrubinemia are risk factors for asthma/wheeze in childhood. Intake of fish oil, zinc and vitamin E during pregnancy appear as protective factors, as well as breastfeeding, fish intake in the first two years, and BCG vaccination. CONCLUSION: Several modifiable behaviors or exposures can be associated with asthma and wheezing in childhood. The knowledge about these behaviors and exposures can improve early prevention strategies with a view to ensuring a beneficial impact on respiratory health

INTRODUÇÃO: Os primeiros 1000 dias de vida de uma criança, período desde a concepção até o final do segundo ano, são considerados críticos para o desenvolvimento dos sistemas respiratório e imunológico. Muitos fatores ocorridos nesse período podem estar associados ao risco de asma na infância. OBJETIVO: Condensar evidências sobre fatores de risco e proteção para asma infantil e/ ou sibilância ocorridos nos primeiros 1000 dias de vida. MÉTODO: Foram revisadas as bases de dados MEDLINE, CINAHL e SCOPUS. Foram incluídas revisões sistemáticas com meta-análise, ou meta-análise de estudos observacionais e de intervenção sobre fatores de risco ou proteção para asma infantil/sibilância, enfatizando os primeiros 1000 dias de vida. A qualidade dos estudos foi avaliada pela ferramenta Assess Systematic Reviews. Odds ratio, intervalos de confiança e homogeneidade entre os estudos foram analisados. RESULTADOS: Trinta e cinco estudos preencheram os critérios de inclusão, com boa qualidade metodológica. Foram identificados como fatores de risco para asma e/ou sibilância na infância: história parental de asma, ganho de peso materno durante a gestação, infecções urogenitais, estresse psicológico, tabagismo, parto cesárea, prematuridade, peso ao nascer e hiperbilirrubinemia neonatal. A ingestão de óleo de peixe, zinco e vitamina E durante a gestação aparecem como fatores de proteção, bem como amamentação, ingestão de peixe nos dois primeiros anos e vacinação BCG. CONCLUSÃO: Diversos comportamentos ou exposições modificáveis podem estar associados à asma e sibilância na infância. O conhecimento sobre estes comportamentos e exposições pode melhorar as estratégias de prevenção precoce, visando garantir um impacto benéfico na saúde respiratória.

Physiological Responses and Dynamic Hyperinflation Induced by Unsupported Arm Activities Involved in Multiple-Task Activities of Daily Living Test in Patients With COPD.

PURPOSE: This study aimed to analyze the isolated role of unsupported arm activities and the physiological responses and dynamic hyperinflation (DH) induced by activities of daily living in patients with chronic obstructive pulmonary disease. Physiological responses and DH were compared using the Glittre activities of daily living test (TGlittre) and a modified protocol that emphasized unsupported arm activities and excluded squats and bending down to move objects on shelves (TGlittre-M). Data were also compared from the isolated shelf tasks of TGlittre (TSHELF) and TGlittre-M (TSHELF-M). METHODS: This cross-sectional study included 30 patients with chronic obstructive pulmonary disease who performed the TGlittre, TGlittre-M, TSHELF and TSHELF-M. The physiological responses were evaluated during the 4 protocols and inspiratory capacity was measured before and immediately after the tests for evaluation of DH. RESULTS: Patients had higher oxygen uptake, ventilatory demand, dyspnea, and DH in the TGlittre than in the TGlittre-M (mean differences: 123 ± 119 mL/min; 0.11 ± 0.10, 1 [-1 to 3], and - 0.14 ± 0.22, respectively; P < .05 for all). Oxygen uptake, ventilatory demand, and dyspnea were also higher in the TSHELF than in the TSHELF-M (mean differences: 408 ± 185 mL/min; 0.26 ± 0.17; 1 [-1 to 3], respectively; P < .05 for all). However, DH was similar for both tasks (P > .05). CONCLUSIONS: In patients with chronic obstructive pulmonary disease, the physiological demands during unsupported arm activities were lower than during the task performed with squatting and bending down; however, the magnitude of DH did not differ between them. These results suggest that the isolated arm activities contribute less to the TGlittre's physiological requirement than the lower-limb and trunk activities.

Limited utility of Kinesio Taping® in the physiotherapy treatment for patients with chronic obstructive pulmonary disease exacerbation.

BACKGROUND: Kinesio Taping® has been used as a physiotherapy treatment in musculoskeletal disorders. However, few studies have evaluated its effectiveness in patients with chronic obstructive pulmonary disease (COPD). OBJECTIVES: To analyze the effects of Kinesio Taping® associated with conventional physiotherapy, on the maximal inspiratory and expiratory pressures (MIP and MEP), forced expiratory volume in 1 second (FEV1), peak expiratory flow (PEF), and pulse oxygen saturation (SpO2) of patients hospitalized for COPD exacerbation. METHODS: Prospective, randomized, single-blinded study. Sixty-two participants who were randomized into two groups: 1) control (medication and standard physiotherapy treatment); and 2) Kinesio Taping® (standard treatment plus application of Kinesio Taping® on the respiratory muscles). The outcomes were assessed 24 hours after the treatment. RESULTS: After the intervention, the Kinesio Taping® group showed a statistically significant increase in all outcomes assessed. However, when the mean differences between groups were analyzed, there were no statistically significant differences in MIP, MEP, FEV1, and PEF. Differences were found only in SpO2 that was improved in the Kinesio Taping® group. CONCLUSIONS: The application of Kinesio Taping® associated with physiotherapy improved SpO2 of non-hypoxemic patients with COPD exacerbation. Further studies should be conducted to evaluate the method in the long run and in another outcome.

Modified Medical Research Council Dyspnea Scale in GOLD Classification Better Reflects Physical Activities of Daily Living.

BACKGROUND: In multidimensional Global Initiative for Chronic Obstructive Lung Disease (GOLD) classification, the choice of the symptom assessment instrument (modified Medical Research Council dyspnea scale [mMRC] or COPD assessment test [CAT]) can lead to a different distribution of patients in each quadrant. Considering that physical activities of daily living (PADL) is an important functional outcome in COPD, the objective of this study was to determine which symptom assessment instrument is more strongly associated with and differentiates better the PADL of patients with COPD. METHODS: The study included 115 subjects with COPD (GOLD 2-4), who were submitted to spirometry, the mMRC, the CAT, and monitoring of PADL (triaxial accelerometer). Subjects were divided into 2 groups using the cutoffs proposed by the multidimensional GOLD classification: mMRC < 2 and ≥ 2 and CAT < 10 and ≥ 10. RESULTS: Both mMRC and CAT reflected the PADL of COPD subjects. Subjects with mMRC < 2 and CAT < 10 spent less time in physical activities < 1.5 metabolic equivalents of task (METs) (mean of the difference [95% CI] = -62.9 [-94.4 to -31.4], P < .001 vs -71.0 [-116 to -25.9], P = .002) and had a higher number of steps (3,076 [1,999-4,153], P < .001 vs 2,688 [1,042-4,333], P = .002) than subjects with mMRC > 2 and CAT > 10, respectively. Physical activities ≥ 3 METs differed only between mMRC < 2 and mMRC ≥ 2 (39.2 [18.8-59.6], P < .001). Furthermore, only the mMRC was able to predict the PADL alone (time active, r2 = 0.16; time sedentary, r2 = 0.12; time ≥ 3 METs, r2 = 0.12) and associated with lung function (number of steps, r2 = 0.35; walking time, r2 = 0.37; time < 1.5 METs, r2 = 0.25). CONCLUSIONS: The mMRC should be adopted as the classification criterion for symptom assessment in the GOLD ABCD system when focusing on PADL.

Effects of acute use of pursed-lips breathing during exercise in patients with COPD: a systematic review and meta-analysis.

BACKGROUND: Pursed-lips breathing (PLB) is a ventilatory strategy frequently adopted spontaneously by patients with chronic obstructive pulmonary disease (COPD) to relieve dyspnoea, and its practice is widely taught as a respiratory strategy to increase exercise tolerance. OBJECTIVE: To investigate the effects of acute use of PLB in exercise performance, dyspnoea, ventilatory parameters and oxygen saturation during exercise in patients with COPD. DATA SOURCES: PEDro, EMBASE, MEDLINE via OVID, and EBSCO up to May 2016. STUDY SELECTION: Crossover, randomized and quasi-randomized controlled trials that studied PLB as a ventilatory strategy for patients with COPD during exercise. DATA EXTRACTION AND SYNTHESIS: Data extraction included background characteristics of the research reports; participant characteristics; description of the analyzed variables and corresponding instruments; exercise protocol; exercise performance; outcomes and corresponding results; data for "responder" and "non-responder" outcomes. RESULTS: Eight studies were selected. The meta-analysis demonstrated that the use of PLB during exercise reduces minute ventilation and respiratory rate compared to exercise without PLB. No statistically significant differences were found in the 6-minute walk test distance. LIMITATIONS: The sample characteristics, exercise protocols, and criteria for "responders" and "non-responders" differed among studies. CONCLUSION: PLB is effective in reducing minute ventilation and respiratory rate during exercise in patients with COPD. It is still unclear who responds to PLB and how these responders benefit from its use. Further studies with better methodological quality are necessary to understand the implications of its acute use on the functional capacity and symptoms of patients with COPD. Systematic review registration number: PROSPERO CRD42015025903.

Glittre-ADL Multiple Tasks Induce Similar Dynamic Hyperinflation With Different Metabolic and Ventilatory Demands in Patients With COPD.

PURPOSE: This cross-sectional study compared the physiological responses and dynamic hyperinflation (DH) of the Glittre-ADL test (TGlittre) and its specific tasks in patients with chronic obstructive pulmonary disease (COPD). METHODS: Thirty patients with COPD performed the TGlittre. The individual tasks included stand up and sit down (TSS); climb up and down stairs (TSTAIRS); walk on a flat surface (TWALK); and move objects onto and off a shelf (TSHELF). While performing these tasks, the physiological responses were evaluated and inspiratory capacity measured before and immediately after the tests. RESULTS: All physiological variables and inspiratory capacity were different at the end of the TGlittre and its tasks compared with baseline (P < .05). For most of the physiological variables, there were no significant differences between TSHELF and TWALK (P > .05), which were the tasks with the greatest physiological requirement, whereas the TSS represented the lowest metabolic, cardiovascular, and ventilatory demands among TGlittre's tasks. DH did not differ significantly among TGlittre's tasks. CONCLUSIONS: TWALK and TSHELF were the tasks that resulted in greater physiological overload, whereas TSS induced the lowest metabolic and ventilatory demands. Despite this, DH did not differ among the TGlittre's tasks in patients with COPD.

Impulse oscillometry in the assessment of asthmatic children and adolescents: from a narrative to a systematic review.

Diagnosis and management of asthma often relies mostly on symptoms because spirometry is not always reliable in some age groups, such as preschoolers. It is unclear whether impulse oscillometry (IOS) can supplement or replace spirometry. Available reports suggest that IOS has been applied with success in asthmatic children and adolescents to assess exacerbations, level of control, severity and response to treatment in the short and long term. Very few studies using adequate sample sizes and methods have been performed comparing the accuracy of IOS to spirometry for the diagnosis of asthma. Our systematic review found only four studies that met the eligibility criteria. However, no meta-analysis was possible with the available data. Consequently, this review helps to identify research gaps involving IOS, highlighting opportunities for future studies.

Reproducibility of Ventilatory Parameters, Dynamic Hyperinflation, and Performance in the Glittre-ADL Test in COPD Patients.

BACKGROUND: This study aimed to investigate the reproducibility of the ventilatory parameters and dynamic hyperinflation (DH) induced by the Glittre ADL-test (TGlittre) in chronic obstructive pulmonary disease (COPD) patients. METHODS: Twenty-three patients with COPD underwent anthropometry, spirometry, TGlittre (TGlittre1 and TGlittre2) and pre- and post-test slow vital capacity. During the tests the ventilatory response was evaluated. RESULTS: Regarding the TGlittre reproducibility, 87% of patients had a better performance in TGlittre2, and reduced on average 0.34 minute ± 0.62 (p = 0.01) from TGlittre1 time to TGlittre2, showing a learning effect of 6.34%. The difference average between tests was correlated with the time spent in TGlittre1 (r = -0.52; p < 0.05). The TGlittre time was statistically reproducible (intraclass correlation coefficient = 0.97; p < 0.001). Final ventilation parameters and their variations presented low-to-high reproducibility, except respiratory rate. The DH was similar (p > 0.05) in both tests, with low reproducibility in percentage, while in liters it was not reproducible. CONCLUSIONS: The TGlittre time and ventilatory parameters are reproducible, while DH is variable in COPD patients. A 6-7% learning effect was shown, and it is recommended to perform two tests.

Can the Glittre ADL test differentiate the functional capacity of COPD patients from that of healthy subjects?

BACKGROUND: The Glittre ADL (TGlittre) test is a specifically designed to assess functional limitation in chronic obstructive pulmonary disease (COPD) patients. However, it is not known if it can differentiate the performance of these patients from healthy subjects. OBJECTIVES: To investigate whether the Glittre ADL test is able to differentiate the functional capacity of COPD patients from that of healthy subjects and to compare the cardiorespiratory response between Glittre ADL and the six-minute walk test (6MWT). METHODS: The study included 10 patients with COPD (GOLD 2 to 4) and 10 healthy subjects matched by age who performed the following: spirometry pre- and post-bronchodilator, a Glittre ADL test and two 6MWT on two consecutive days. RESULTS: The performance of COPD (FEV1%pred= 38.1±11.8, age=64±10 years, BMI=23.7±5.2 kg/ m²) was worse than the control group on TGlittre (5.26±2.9 min, 3.3±0.3 min, p<0.05) and 6MWT (434.97±105.18 m vs. 593.25±87.36 m, p<0.05). TGlittre correlated with the physical activity domain of the London Chest Activity of Daily Living (LCADL) scale (r=0.67, p<0.05) and with 6MWT when the total sample was analyzed (r=-0.64, p<0.05). The COPD group had a statistically higher (p<0.05) increase in dyspnea (Borg scale) than the control group for both TGlittre and 6MWT, with a similar heart rate and peripheral oxygen saturation variation in both groups (p>0.05). CONCLUSIONS: The performance of COPD patients is worse than that of healthy subjects on the Glittre ADL test, with a greater increase in dyspnea and similar heart rates.

Relationship between daily living activities (ADL) limitation and the BODE index in patients with chronic obstructive pulmonary disease.

BACKGROUND: Chronic Obstructive Pulmonary Disease (COPD) is a progressive disease that reduces functional capacity, deteriorating the ability to perform activities of daily living (ADL). A close relationship between morbidity and mortality with functional limitation is observed in patients with COPD. OBJECTIVES: To determine if there is a relationship between ADL limitation and the BODE index, which is a predictor of mortality, in patients with moderate to severe COPD. METHODS: Thirty-nine patients with COPD GOLD 2 to 4 recruited by convenience, were submitted to the following tests: spirometry, body mass index (BMI), the London Chest Activity of Daily Living (LCADL) scale, six-minute walking test (6MWT), the Medical Research Council (MRC) scale and the BODE index was calculated. The total score and the percentage of the total score LCADL (LCADL%total) were compared between patients of the four quartiles of the BODE using the Analysis of Variance test. The Spearman correlation coefficient was used to investigate the association between scores of LCADL and BODE index. RESULTS: Patients had an average of FEV1%pred=37±12% and were on average 66±8 years-old. The LCADL%total correlated with the BODE index (r=0.65, p<0.05) as well as with the variables FEV1, dyspnea and walked distance in the 6MWT (r=-0.42, r=0.76 and r=-0.67, p<0.05, respectively). The comparison of the average scores of the LCADL%total between BODE quartiles 1, 2, 3 and 4, demonstrated that only the 4th quartile differed significantly from the others (p<0.05). CONCLUSIONS: ADL limitation has a strong association with the BODE index in patients with moderate to severe COPD and with three of the four variables that composes it.