Browsing by Author "Carreira, Bruno P."
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- Motivation and physical activity in COPD: An exploratory studyPublication . Pimenta, Sara; Flora, Sofia; Silva, Cândida G.; Oliveira, Ana; Morais, Nuno; Ribeiro, José; Silva, Fernando; Caceiro, Rúben; Carreira, Bruno P.; Januário, Filipa; Andrade, Lília; Rodrigues, Fátima; Brooks, Dina; Burtin, Chris; Marques, Alda; Cruz, JoanaA key factor for the adoption of an active lifestyle is self-determined motivation; however, it is often overlooked in COPD. Understanding the motives underlying patients’ decision to be (or not) physically active will provide insight into future interventions. This study assessed the motives for patients with COPD to engage in physical activity (PA) and their association with PA behaviour. A cross-sectional study was conducted in stable patients with COPD. Motivation was assessed with the Exercise Motivation Inventory-2 (EMI-2; score 0[Not at all true for me]–5[Very true for me]; 5 dimensions) and PA with accelerometry [ActiGraph-GT3X+, 7 days; moderate to vigorous PA (MVPA), steps/day]. Spearman’s correlations (ρ) were used to assess their relationship. 60 participants were enrolled (67.2±7.7 years; 76.7% men; FEV1 49.5±19.7pp). Patients’ motives to be physically active were mostly Health, Fitness and Psychological. Correlations with PA were weak and non-significant (p>0.05) (Table 1). Patients with COPD value Health, Fitness and Psychological motives to be physically active, although these are not related to their PA behaviour. Findings highlight the complex nature of PA and the need to further explore factors influencing PA and motivation in this population.
- Perfil de atividade física de pessoas com Doença Pulmonar Obstrutiva Crónica (DPOC) em PortugalPublication . Raposo, João; Pimenta, Sara; Alves-Guerreiro, José; Flora, Sofia; Caceiro, Rúben; Morais, Nuno; Oliveira, Ana; Silva, Cândida G.; Ribeiro, José; Silva, Fernando; Januário, Filipa; Carreira, Bruno P.; Rodrigues, Fátima; Marques, Alda; Cruz, JoanaIntrodução e objetivos: A participação em atividade física (AF) regular está associada a um menor risco de mortalidade e melhor qualidade de vida relacionada com a saúde. Apesar de se saber que as pessoas com Doença Pulmonar Obstrutiva Crónica (DPOC) apresentam níveis baixos de AF quando comparadas com indivíduos saudáveis da mesma idade e sexo, desconhece-se ainda a caracterização diária dos níveis de AF destas pessoas em Portugal. Este estudo teve como objetivos caracterizar o perfil de AF de pessoas com DPOC portuguesas e explorar a sua relação com características clínicas. Material e Métodos: Foi realizado um estudo observacional transversal em pessoas com DPOC clinicamente estáveis, nas regiões Centro e Lisboa e Vale do Tejo. Foram recolhidos dados sociodemográficos, antropométricos, função pulmonar [Volume Expiratório Forçado no 1º segundo (FEV1)], sintomas e exacerbações (GOLD ABCD), dispneia (modified Medical Research Council), tolerância ao exercício (teste de marcha dos 6-min) e estado de saúde (COPD Assessment Test). A AF foi avaliada através de acelerometria (ActiGraph GT3X+) durante 7 dias e consistiu em: tempo despendido em AF Moderada a Vigorosa (AFMV) e em AF Total (min/dia), e número de passos/dia. Realizou-se estatística descritiva e correlações de Spearman (ρ) entre as variáveis de AF e as medidas clínicas. Resultados: Os participantes (n=102, 82 do sexo masculino, FEV1=48±19%previsto) apresentaram uma mediana [Q1–Q3] de 20 [9–41] min/dia em AFMV, 144 [100–208] min em AF Total e realizaram 4438 [2821–6944] passos/dia. Apenas 24% dos participantes atingiram ≥7000 passos/dia e 41% os ≥30 min/dia de AFMV recomendados na literatura. O tempo despendido em AFMV e o n.º de passos/dia apresentaram correlações moderadas com a dispneia (ρ=-0.401 e ρ=0.537, respetivamente; p<0.001) e com a tolerância ao exercício (ρ=0.560 e ρ=0.525, respetivamente; p<0.001). O tempo em AFMV apresentou ainda correlação com os graus ABCD (ρ=-0.430, p<0.001). Conclusões: A maioria das pessoas com DPOC é fisicamente inativa. Os sintomas, exacerbações e tolerância ao esforço estão associados à AF nesta população e devem ser considerados em intervenções de promoção de AF.
- Test-retest reliability, agreement and construct validity of the International Physical Activity Questionnaire short-form (IPAQ-sf) in people with COPDPublication . Flora, Sofia; Marques, Alda; Hipólito, Nádia; Morais, Nuno; Silva, Cândida G.; Januário, Filipa; Rodrigues, Fátima; Carreira, Bruno P.; Cruz, J.Introduction This study assessed the test-retest reliability/agreement and construct validity of the International Physical Activity Questionnaire short-form (IPAQ-sf) in patients with chronic obstructive pulmonary disease (COPD). It also explored differences in its validity according to age, sex and GOLD airflow obstruction levels. Methods 62 participants (68 ± 8 years, 53 males, FEV1 51 ± 23%pred) completed the Portuguese IPAQ-sf, wore an accelerometer for 7 days and completed a second IPAQ-sf. Test-retest reliability/agreement was assessed with Intraclass Correlation Coefficient (ICC2,1), 95% Limits of Agreement (LoA), standard error of measurement (SEM) and minimal detectable change (MDC95) for continuous variables, and percentage of agreement (%agreement) for categories (“active”/“inactive”). Validity was assessed with 95% LoA and Spearman's correlations (ρ) between IPAQ-sf 2 (METs-min/week, time in vigorous [VPA], moderate PA [MPA] and walking) and accelerometry (time in MVPA, VPA, MPA and step counts) for continuous variables; %agreement, Cohen's kappa, and sensitivity specificity and±predictive values for categories. Correlations were also performed for age, sex and GOLD airflow obstruction grades. Results Reliability was good (ICC2,1 = 0.707) with wide LoA (-6446—6409 METs-min/week). SEM and MDC95 were 1840 and 4971 METs-min/week, respectively. %agreement between the two IPAQ-sf was 84% (kappa = 0.660). Positive, moderate and significant correlations were found between IPAQ-sf and accelerometry (0.396 ≤ ρ ≤ 0.527, p < 0.001), except for VPA (p > 0.05). The strongest correlations were found in age (<65 years) and male (0.466 ≤ ρ ≤ 0.653, p < 0.05). %agreement between tools was 65% (kappa = 0.313), with high sensitivity (0.830) but low specificity (0.500). Conclusions The IPAQ-sf seems valid to be used in COPD but caution on its widespread use is recommended as its accuracy may be limited.
- What Motivates Patients with COPD to Be Physically Active? A Cross-Sectional StudyPublication . Pimenta, Sara; Silva, Cândida G.; Flora, Sofia; Hipólito, Nádia; Burtin, Chris; Oliveira, Ana; Morais, Nuno; Brites-Pereira, Marcelo; Carreira, Bruno P.; Januário, Filipa; Andrade, Lília; Martins, Vitória; Rodrigues, Fátima; Brooks, Dina; Marques, Alda; Cruz, JoanaMotivation can be broadly defined as what moves people to act. Low motivation is a frequently reported factor for the reduced physical activity (PA) levels observed in patients with chronic obstructive pulmonary disease (COPD). This study assessed patients’ motives to be physically active, according to three pulmonary rehabilitation (PR) participation groups (Never PR, Previous PR and Current PR) and explored whether these motives were related to the PA levels and clinical characteristics. The motives to be physically active were assessed with the Exercise Motivation Inventory-2 (EMI-2, 14 motivational factors, five dimensions) and PA with accelerometry (PA groups: <5000 steps/day vs. ≥5000 steps/day). The clinical variables included symptoms, impact of the disease, exercise capacity and comorbidities. Ninety-two patients (67.4 ± 8.1 years, 82.6% male, forced expiratory volume in 1s (FEV1) 48.3 ± 18.9% predicted; 30.4% Never PR, 51% Previous PR and 18.5% Current PR) participated. The motivational dimensions related to health/fitness presented the highest scores (3.8 ± 1.1; 3.4 ± 1.3). The motives to be active were not significantly different between PA groups (p > 0.05) but having less symptoms and ≥two comorbidities were associated with higher scores in psychological/health and body-related motives, respectively (p < 0.05). The findings may encourage health professionals to actively explore with patients their motives to be physically active to individualise PA promotion.
- What Motivates Patients with COPD to Be Physically Active? A Cross-Sectional StudyPublication . Pimenta, Sara; Silva, Cândida; Flora, Sofia; Hipólito, Nádia; Burtin, Chris; Oliveira, Ana; Morais, Nuno; Brites-Pereira, Marcelo; Carreira, Bruno P.; Januário, Filipa; Andrade, Lilia; Martins, Vitória; Rodrigues, Fátima; Brooks, Dina; Marques, Alda; Cruz, JoanaMotivation can be broadly defined as what moves people to act. Low motivation is a frequently reported factor for the reduced physical activity (PA) levels observed in patients with chronic obstructive pulmonary disease (COPD). This study assessed patients’ motives to be physically active, according to three pulmonary rehabilitation (PR) participation groups (Never PR, Previous PR and Current PR) and explored whether these motives were related to the PA levels and clinical characteristics. The motives to be physically active were assessed with the Exercise Motivation Inventory-2 (EMI-2, 14 motivational factors, five dimensions) and PA with accelerometry (PA groups: <5000 steps/day vs. ≥5000 steps/day). The clinical variables included symptoms, impact of the disease, exercise capacity and comorbidities. Ninety-two patients (67.4 ± 8.1 years, 82.6% male, forced expiratory volume in 1s (FEV1) 48.3 ± 18.9% predicted; 30.4% Never PR, 51% Previous PR and 18.5% Current PR) participated. The motivational dimensions related to health/fitness presented the highest scores (3.8 ± 1.1; 3.4 ± 1.3). The motives to be active were not significantly different between PA groups (p > 0.05) but having less symptoms and ≥two comorbidities were associated with higher scores in psychological/health and body-related motives, respectively (p < 0.05). The findings may encourage health professionals to actively explore with patients their motives to be physically active to individualise PA promotion.