Importância do destreinamento físico sobre a capacidade funcional em indivíduos com doença arterial obstrutiva crônica periférica: estudo transversal piloto / Importance of physical detraining in functional capacity of individuals with chronic peripheral arterial occlusive disease: a cross-sectional pilot study

Resumo Contexto O treinamento físico é uma estratégia bem estabelecida para a reabilitação da capacidade funcional de indivíduos com doença arterial obstrutiva crônica periférica (DAOP). No entanto, após um programa de treinamento físico, alguns indivíduos podem descontinuá-lo, causando destreinamento. A literatura é escassa sobre os efeitos do destreinamento físico em indivíduos com DAOP; portanto, torna-se importante investigar os efeitos nessa temática. Objetivos Avaliar os efeitos do destreinamento físico sobre a capacidade funcional em indivíduos com DAOP. Métodos Estudo transversal com 22 indivíduos. Os participantes foram divididos em dois grupos: grupo destreinamento (GD), grupo controle (GC). Foram avaliadas a distância percorrida no teste de caminhada de 6 minutos (DTC6M) e a distância livre de dor claudicante (DLDC), a qual é referida pela distância percorrida até o início da claudicação, ou seja, sem dor. Resultados A média da idade foi de 66±8 para o GD e de 67±7 para o GC. Tanto a DTC6M como a DLDC não apresentaram diferenças entre os grupos (p = 0,428 e p = 0,537, respectivamente). Conclusões O presente estudo piloto permite concluir que indivíduos com DAOP que participaram de um programa de treinamento físico e posterior destreinamento não tiveram efeitos superiores na sua capacidade funcional em relação a indivíduos que não participaram de programa de treinamento físico. O resultado do presente estudo serve para incentivar a manutenção da prática de exercício físico, visto que o treinamento físico deixa de ser efetivo se ocorrer destreinamento.

Abstract Background Physical training is a well-established strategy for rehabilitation of the functional capacity of individuals with chronic peripheral arterial occlusive disease (PAOD). However, some individuals quit training after participating in a physical training program, undergoing detraining. There is scant literature on the effects of physical detraining in individuals with PAOD and it is therefore important to investigate the effects of this phenomenon. Objectives The objective of this article was to evaluate the effects of physical detraining on functional capacity in individuals with PAOD. Methods Cross-sectional study with 22 individuals. Participants were divided into two groups: a detraining group (DG) and a control group (CG). The distance covered in the 6-minute walk test (6MWTD) and the pain-free walking distance (PFWD) were evaluated. The PFWD is the distance covered until claudication begins, i.e., the distance covered without pain. Results Mean age was 66 ± 8 in the DG and 67 ± 7 in the CG. There were no differences between the groups in either the 6MWTD or the PFWD (p = 0.428; p = 0.537, respectively). Conclusions The present pilot study allows us to conclude that the functional capacity of individuals with PAOD who participated in a physical training program and subsequently underwent detraining was not superior in relation to individuals who did not participate in a physical training program. The results of the present study serve to encourage maintenance of physical exercise, since physical training is no longer effective if detraining occurs.

Importância do destreinamento físico sobre a capacidade funcional em indivíduos com doença arterial obstrutiva crônica periférica: estudo transversal piloto / Importance of physical detraining in functional capacity of individuals with chronic peripheral arterial occlusive disease: a cross-sectional pilot study

Resumo Contexto O treinamento físico é uma estratégia bem estabelecida para a reabilitação da capacidade funcional de indivíduos com doença arterial obstrutiva crônica periférica (DAOP). No entanto, após um programa de treinamento físico, alguns indivíduos podem descontinuá-lo, causando destreinamento. A literatura é escassa sobre os efeitos do destreinamento físico em indivíduos com DAOP; portanto, torna-se importante investigar os efeitos nessa temática. Objetivos Avaliar os efeitos do destreinamento físico sobre a capacidade funcional em indivíduos com DAOP. Métodos Estudo transversal com 22 indivíduos. Os participantes foram divididos em dois grupos: grupo destreinamento (GD), grupo controle (GC). Foram avaliadas a distância percorrida no teste de caminhada de 6 minutos (DTC6M) e a distância livre de dor claudicante (DLDC), a qual é referida pela distância percorrida até o início da claudicação, ou seja, sem dor. Resultados A média da idade foi de 66±8 para o GD e de 67±7 para o GC. Tanto a DTC6M como a DLDC não apresentaram diferenças entre os grupos (p = 0,428 e p = 0,537, respectivamente). Conclusões O presente estudo piloto permite concluir que indivíduos com DAOP que participaram de um programa de treinamento físico e posterior destreinamento não tiveram efeitos superiores na sua capacidade funcional em relação a indivíduos que não participaram de programa de treinamento físico. O resultado do presente estudo serve para incentivar a manutenção da prática de exercício físico, visto que o treinamento físico deixa de ser efetivo se ocorrer destreinamento.

Abstract Background Physical training is a well-established strategy for rehabilitation of the functional capacity of individuals with chronic peripheral arterial occlusive disease (PAOD). However, some individuals quit training after participating in a physical training program, undergoing detraining. There is scant literature on the effects of physical detraining in individuals with PAOD and it is therefore important to investigate the effects of this phenomenon. Objectives The objective of this article was to evaluate the effects of physical detraining on functional capacity in individuals with PAOD. Methods Cross-sectional study with 22 individuals. Participants were divided into two groups: a detraining group (DG) and a control group (CG). The distance covered in the 6-minute walk test (6MWTD) and the pain-free walking distance (PFWD) were evaluated. The PFWD is the distance covered until claudication begins, i.e., the distance covered without pain. Results Mean age was 66 ± 8 in the DG and 67 ± 7 in the CG. There were no differences between the groups in either the 6MWTD or the PFWD (p = 0.428; p = 0.537, respectively). Conclusions The present pilot study allows us to conclude that the functional capacity of individuals with PAOD who participated in a physical training program and subsequently underwent detraining was not superior in relation to individuals who did not participate in a physical training program. The results of the present study serve to encourage maintenance of physical exercise, since physical training is no longer effective if detraining occurs.

The beneficial effects of a water-based aerobic exercise session on the blood lipids of women with dyslipidemia are independent of their training status

OBJECTIVES: To evaluate the acute effects of a session of water-based aerobic exercise on the blood lipid levels of women with dyslipidemia and to compare these results according to their training status. METHOD: Fourteen premenopausal women with dyslipidemia, aged 40-50 years, participated in two water-based aerobic exercise sessions, the first when they were generally sedentary and the second after they were trained with a water-based aerobic training program for 12 weeks. Both experimental sessions were performed using the same protocol, lasted 45 min, and incorporated an interval method, alternating 3 min at a rating of perceived exertion (RPE) of 13 and 2 min at an RPE of 9. Total cholesterol (TC), triglycerides (TG), low-density lipoprotein (LDL), high-density lipoprotein (HDL), and lipoprotein lipase enzyme (LPL) were obtained through venous blood collection before and immediately after each session. A generalized estimating equation method and Bonferroni tests were conducted (with time and training status as factors) for statistical analyses. RESULTS: At enrollment, the mean age of the participants was 46.57 years (95% confidence interval [CI] 44.81−48.34). The statistical analyses showed a significant time effect for all variables (TC: p=0.008; TG: p=0.012; HDL: p<0.001; LPL: p<0.001) except for LDL (p=0.307). However, the training status effect was not significant for any variable (TC: p=0.527; TG: p=0.899; HDL: p=0.938; LDL: p=0.522; LPL: p=0.737). These results indicate that the TC and TG levels reduced and the HDL and LPL concentrations increased from pre- to post-session in similar magnitudes in both sedentary and trained women. CONCLUSIONS: A single water-based aerobic exercise session is sufficient and effective to beneficially modify the lipid profile of women with dyslipidemia, regardless of their training status.