RESUMO
Studies on the association between functionality and severity of chronic obstructive pulmonary disease (COPD) are conflicting. The GOLD ABCD system, as it includes variables ââby influence such as activities of daily living (ADLs), would be discriminative to verify the magnitude of the disease influence on functionality. The aims of this study are to compare the performance in the ADLs of patients with COPD classified at different levels of severity according to the GOLD ABCD system, as well as to verify the association among these variables. Participants performed the Londrina ADL Protocol (LAP) to assess ADLs, as well as: lung function, functional exercise capacity and clinical history. LAP time was compared among the GOLD-A (n = 13), GOLD-B (n = 18) and GOLD-C + D (n = 14) groups by the Kruskal-Wallis test. χ2 test and V Cramer were used for analysis. The level of statistical significance adopted was P<0.05. For this study, 45 COPD patients completed the assessments (22 men; 65±8 years; FEV1: 51±15% predicted, 6MWT: 520±25m). Overall LAP runtime was 32[275-354] seconds (96[86-106]% predicted). When grouped together, the LAP time was 330[276-348]sec, 318[272-365]sec and 318[282-386]sec in the GOLD-A, B and C+D groups, respectively (P=0.78). There was no association between performance on the LAP and classification by the GOLD ABCD (P=0.24 and VCramer=0.27). It is possible to conclude that the performance in the ADLs of patients with COPD did not differ among the different levels of the GOLD ABCD. Other factors can interfere with performance in the LAP, due to the need for further studies. IAU)
Estudos sobre associação entre funcionalidade e gravidade da doença pulmonar obstrutiva crônica (DPOC), apresentam resultados conflitantes. O sistema GOLD ABCD, por incluir variáveis conhecidas por influenciar as atividades de vida diária (AVDs), seria discriminativo para verificar a magnitude da influência da doença sobre a funcionalidade. Os objetivos foram comparar o desempenho nas AVDs de pacientes com DPOC classificados em diferentes níveis de gravidade de acordo com o sistema GOLD ABCD, bem como verificar a associação entre estas variáveis. Os participantes realizaram o Londrina ADL Protocol (LAP) para avaliar as AVDs, assim como: função pulmonar, capacidade funcional de exercício e histórico clínico. O tempo do LAP foi comparado entre os grupos GOLD-A (n=13), GOLD-B (n=18) e GOLD-C+D (n=14) pelo teste de Kruskal-Wallis. Teste χ2 e V Cramer foram utilizados para analisar associações. O nível de significância estatística adotado foi P<0,05. Para esse estudo, 45 pacientes com DPOC completaram as avaliações (22 homens; 65±8 anos; VEF1: 51±15%predito, TC6min: 520±25m). O tempo de execução do LAP, no geral, foi de 321 [275-354]seg (96 [86-106]%predito). Quando agrupados, o tempo do LAP foi de 330 [276-348]seg, 318 [272-365]seg e 318 [282-386]seg nos grupos GOLD-A, B e C+D, respectivamente (P=0,78). Não houve associação entre o desempenho no LAP e a classificação pelo GOLD ABCD (P=0,24 e V Cramer=0,27). Portanto, concluiu-se que o desempenho nas AVDs de pacientes com DPOC não diferiu entre os diferentes níveis do GOLD ABCD. Outros fatores podem interferir no desempenho no LAP, apontando para a necessidade de novos estudos. (AU)
RESUMO
PURPOSE: This study aimed to investigate whether patients with chronic obstructive pulmonary disease (COPD) presenting asthma overlap (ACO) benefit similarly in comparison to patients with only COPD after a 12-week high-intensity exercise training (ET) program. METHODS: Subjects with a diagnosis of COPD alone or ACO were evaluated and compared before and after a high-intensity ET program composed of walking and cycling plus strengthening exercises of the upper and lower limbs (3 days/week, 3 months, 36 sessions). Assessments included spirometry, bioelectrical impedance, 6-min walk test (6MWT), London Chest Activity of Daily Living Scale (LCADL), Hospital anxiety and depression Scale, modified Medical Research Council Scale (mMRC), Saint George Respiratory Questionnaire (SGRQ), and respiratory and peripheral muscle strength [manovacuometry and 1-repetition maximum test (quadriceps femoris, biceps and triceps brachialis), respectively]. ACO was defined according to Sin et al. (Eur Respir J 48(3):664-673, 2016). RESULTS: The sample was composed of 74 subjects (57% male, age 67 ± 8 years, BMI 26 (21-32) kg/m2, FEV1 47 ± 17%predicted), and 12 (16%) of them were classified as presenting ACO. Both groups improved pulmonary function, 6MWT, peripheral and inspiratory muscle strength, LCADL, and SGRQ after ET (p < 0.005 for all). There were no significant interactions between ACO and COPD on ET effects (p > 0.05 for all). Likewise, there was no difference in the proportion of patients achieving the minimum clinical important difference for 6MWT and mMRC. CONCLUSION: High-intensity exercise training generates similar benefits in patients with COPD regardless of whether presenting asthma overlap or not.
Assuntos
Síndrome de Sobreposição da Doença Pulmonar Obstrutiva Crônica e Asma/reabilitação , Terapia por Exercício/métodos , Doença Pulmonar Obstrutiva Crônica/reabilitação , Atividades Cotidianas , Idoso , Ansiedade/psicologia , Síndrome de Sobreposição da Doença Pulmonar Obstrutiva Crônica e Asma/fisiopatologia , Síndrome de Sobreposição da Doença Pulmonar Obstrutiva Crônica e Asma/psicologia , Composição Corporal , Depressão/psicologia , Impedância Elétrica , Feminino , Volume Expiratório Forçado , Humanos , Masculino , Pessoa de Meia-Idade , Força Muscular , Doença Pulmonar Obstrutiva Crônica/fisiopatologia , Doença Pulmonar Obstrutiva Crônica/psicologia , Treinamento Resistido/métodos , Espirometria , Resultado do Tratamento , Capacidade Vital , Teste de CaminhadaRESUMO
PURPOSE: Whether the difference in the impact of chronic obstructive pulmonary disease (COPD) on the functional status of men and women stems from clinical distinctions or to the measuring instrument used is unclear. Like most instruments for assessing functional limitation in COPD, the interpretation of the results of the London Chest Activity of Daily Living (LCADL) scale is limited because a lack of a valid cutoff point to this scale. For that, this study sought to compare the functional status between men and women with COPD; and propose a cutoff point for LCADL capable of discriminating the prognosis of these individuals. METHODS: A sample of 138 subjects with moderate-severe COPD was evaluated by the LCADL. The percentage of the individual maximum score was used to obtain a cutoff point capable of discriminating patients with the worse prognosis according to the BODE Index. The cutoff point was also tested in an independent sample (n = 70). RESULTS: Regarding the total score, domestic and leisure domains of the LCADL, men had better scores than women (P ≤ 0.01). The cutoff point found was 37% (area under the curve = 0.70, 95% confidence interval = 0.60-0.80, sensitivity = 0.55 and specificity = 0.74). Individuals who scored ≥ 37% had a worse prognosis and level of physical activities of daily living than those who scored below (P ≤ 0.02). CONCLUSION: When evaluated by the LCADL, men and women with COPD present difference in the functional status. The established cutoff point (37%) adequately discriminates individuals regarding the prognosis, contributing to improve the interpretation capacity of the LCADL.
Assuntos
Atividades Cotidianas , Pulmão/fisiopatologia , Doença Pulmonar Obstrutiva Crônica/diagnóstico , Idoso , Estudos Transversais , Feminino , Nível de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Doença Pulmonar Obstrutiva Crônica/fisiopatologia , Reprodutibilidade dos Testes , Estudos Retrospectivos , Índice de Gravidade de Doença , Fatores SexuaisRESUMO
BACKGROUND: It is important to assess activities of daily living (ADL) in older adults due to impairment of independence and quality of life. However, there is no objective and standardized protocol available to assess this outcome. Thus, the aim of this study was to verify the reproducibility and validity of a new protocol for ADL assessment applied in physically independent adults age ≥50 y, the Londrina ADL protocol, and to establish an equation to predict reference values of the Londrina ADL protocol. METHODS: Ninety-three physically independent adults age ≥50 y had their performance in ADL evaluated by registering the time spent to conclude the protocol. The protocol was performed twice. The 6-min walk test, which assesses functional exercise capacity, was used as a validation criterion. A multiple linear regression model was applied, including anthropometric and demographic variables that correlated with the protocol, to establish an equation to predict the protocol's reference values. RESULTS: In general, the protocol was reproducible (intraclass correlation coefficient 0.91). The average difference between the first and second protocol was 5.3%. The new protocol was valid to assess ADL performance in the studied subjects, presenting a moderate correlation with the 6-min walk test (r = -0.53). The time spent to perform the protocol correlated significantly with age (r = 0.45) but neither with weight (r = -0.17) nor with height (r = -0.17). A model of stepwise multiple regression including sex and age showed that age was the only determinant factor to the Londrina ADL protocol, explaining 21% (P < .001) of its variability. The derived reference equation was: Londrina ADL protocolpred (s) = 135.618 + (3.102 × age [y]). CONCLUSIONS: The Londrina ADL protocol was reproducible and valid in physically independent adults age ≥50 y. A reference equation for the protocol was established including only age as an independent variable (r2 = 0.21), allowing a better interpretation of the protocol's results in clinical practice.