ABSTRACT
ABSTRACT Objective: To determine the cut-off points for FEV1, FEV0.75, FEV0.5, and FEF25-75% bronchodilator responses in healthy preschool children and to generate reference values for FEV0.75. Methods: This was a cross-sectional community-based study involving children 3-5 years of age. Healthy preschool children were selected by a standardized questionnaire. Spirometry was performed before and after bronchodilator use. The cut-off point of the response was defined as the 95th percentile of the change in each parameter. Results: We recruited 266 children, 160 (60%) of whom were able to perform acceptable, reproducible expiratory maneuvers before and after bronchodilator use. The mean age and height were 57.78 ± 7.86 months and 106.56 ± 6.43 cm, respectively. The success rate for FEV0.5 was 35%, 68%, and 70% in the 3-, 4-, and 5-year-olds, respectively. The 95th percentile of the change in the percentage of the predicted value in response to bronchodilator use was 11.6%, 16.0%, 8.5%, and 35.5% for FEV1, FEV0.75, FEV0.5, and FEF25-75%, respectively. Conclusions: Our results provide cut-off points for bronchodilator responsiveness for FEV1, FEV0.75, FEV0.5, and FEF25-75% in healthy preschool children. In addition, we proposed gender-specific reference equations for FEV0.75. Our findings could improve the physiological assessment of respiratory function in preschool children.
RESUMO Objetivo: Determinar os pontos de corte de resposta ao broncodilatador do VEF1, VEF0,75, VEF0,5 e FEF25-75% em crianças pré-escolares saudáveis e gerar valores de referência para o VEF0,75. Métodos: Foi realizado um estudo transversal de base comunitária em crianças de 3-5 anos de idade. Pré-escolares saudáveis foram selecionados por um questionário padronizado. Foi realizada espirometria antes e depois do uso de broncodilatador. Foram definidos os pontos de corte dessa resposta como o percentil 95 de variação em cada parâmetro. Resultados: Foram recrutadas 266 crianças, e 160 (60,0%) foram capazes de gerar manobras expiratórias aceitáveis e reprodutíveis antes e depois do uso de broncodilatador. As médias de idade e estatura dos participantes foram 57,78 ± 7,86 meses e 106,56 ± 6,43 cm, respectivamente. A taxa de sucesso para o VEF0,5 foi de 35%, 68% e 70%, respectivamente, nos participantes com 3, 4 e 5 anos de idade. O percentil 95 de variação percentual do valor previsto na resposta ao broncodilatador foram, respectivamente, de 11,6%, 16,0%, 8,5% e 35,5%, para VEF1, VEF0,75, VEF0,5 e FEF25-75%. Conclusões: Nossos resultados definiram pontos de corte de resposta ao broncodilatador para o VEF1, VEF0,75, VEF0,5 e FEF25-75 em crianças pré-escolares saudáveis. Adicionalmente, foram propostas equações de referência para o VEF0,75, separadas por sexo. Os achados deste estudo podem melhorar a avaliação fisiológica da função respiratória em pré-escolares.
Subject(s)
Humans , Male , Female , Child, Preschool , Bronchodilator Agents/therapeutic use , Spirometry/standards , Cross-Sectional Studies , Forced Expiratory Flow Rates , Forced Expiratory Volume , Reference Values , Reproducibility of Results , Surveys and QuestionnairesABSTRACT
The Whole-Body Vibration (WBV) has been described as an alternative therapeutic resource for patients with Chronic Obstructive Pulmonary Disease (COPD) with similarity to the Pulmonary Rehabilitation Program (PRP). The aim of the study was to compare PRP to WBV on functional capacity and quality of life in patients with COPD. Twenty individuals with COPD were assigned to PRP and WBV, who were evaluated regarding their lung function, functional capacity and quality of life through spirometry, 6-minute walk test (6MWT) and St. George Respiratory Questionnaire (SGRQ), respectively. The main results for the WBV group were, there were improvements in the walked distance on the 6MWT and in the symptoms and total domains of the SGRQ. For the PRP group, we observed improvement in the activity, impact and total domains of SGRQ. We could conclude that the WBV group increased the walked distance in regard to the PRP group and both programs improved the quality of life
Subject(s)
Humans , Male , Female , Middle Aged , Aged , Quality of Life , Rehabilitation , Pulmonary Disease, Chronic Obstructive , Exercise TherapyABSTRACT
O envelhecimento é caracterizado por degeneração da função neuromuscular traduzida por diminuição da força muscular, do equilíbrio e da coordenação. Este estudo visou avaliar os efeitos de programas de exercícios resistidos, de equilíbrio e de alongamentos sobre a mobilidade funcional em idosas com baixa massa óssea. 36 voluntárias foram aleatorizadas em dois grupos: G1 [n=18; 69,4 ± 6,8 anos] e G2 [n=18; 69,4 ± 5,7 anos] e avaliadas através do Teste Sentar-levantar com 5 repetições (STS-5), Teste de Caminhada de seis metros (SMW) e Teste de Alcance funcional (FRT). O programa de exercício foi aplicado durante 4 meses, 2 vezes por semana, com treinamento de força muscular e mobilidade funcional para G1, e alongamentos e palestras informativas para G2. Após a intervenção os indivíduos de ambos os grupos diminuíram o tempo de realização do STS-5 (G1= 12,6±3,5 vs. 8,4±1,3 s, p=0,01; G2= 12,2±2,6 vs. 8,1±1,3 s, p= 0,00), bem como do SMW (G1= 4,4±1,2 vs. 3,9±0,8 s, p=0,014; G2= 4,2±0,5 vs. 3,6±0,4s, p= 0,000), enquanto se evidenciou aumento do alcance no FRT (G1=26,4±4,9 vs. 31,6±5,0 cm, p= 0,001; G2= 24,6±4,8 vs. 30,3±4,3 cm, p=0,001). Os nossos resultados permitem concluir que foram encontradas melhoras em ambos os grupos estudados e que os exercícios físicos propostos são capazes de trazer benefícios para idosas com baixa massa óssea, através de melhora na sua mobilidade funcional.
Aging is characterized by neuromuscular function degeneration reflected on a decrease of muscle strength, balance and coordination. This study aimed to evaluate the effects of resistance, balance and stretching exercise programs on functional mobility in community-dwelling elderly with low bone mass. 36 volunteers were randomized into two groups: G1 [n=18; 69.4 ± 6.8 years] e G2 [n=18; 69.4 ± 5.7 years] which were evaluated using the Sit-to-stand-5 Test (STS-5), Six metre walk test (SMW) and Functional Reach Test (FRT). The exercise program was applied for 4 months, two times per week, with muscle strength and functional mobility training for G1, and stretching and informative lectures for G2. After the intervention, individuals from both groups decreased their time of performance in STS-5 (G1= 12.6±3.5 vs. 8.4±1.3 s, p=0.01; G2= 12.2±2.6 vs. 8.1±1.3 s, p= 0.00), as well as in SMW (G1= 4.4±1.2 vs. 3.9±0.8 s, p=0.014; G2= 4.2±0.5 vs. 3.6±0.4 s, p= 0,000), while an increase in the reach of FRT was evident (G1 = 26.4±4.9 vs. 31.6±5.0 cm, p= 0.001; G2 = 24.6±4.8 vs. 30.3±4.3 cm, p=0.001). The results indicate that improvements were found in both studied groups and that the proposed exercise programs are able to provide benefits for elderly with low bone mass, throughout the improvement in their functional mobility.