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Article Publish Status: FREE
Abstract Title:

Aerobic training modulates T cell activation in elderly women with knee osteoarthritis.

Abstract Source:

Braz J Med Biol Res. 2016 ;49(11):e5181. Epub 2016 Nov 3. PMID: 27828665

Abstract Author(s):

W F Gomes, A C R Lacerda, G E A Brito-Melo, S F Fonseca, E Rocha-Vieira, A A O Leopoldino, M R Amorim, V A Mendonça

Article Affiliation:

W F Gomes

Abstract:

Osteoarthritis of the knee (kOA) is a disease that mainly affects the elderly and can lead to major physical and functional limitations. However, the specific effects of walking, particularly on the immune system, are unknown. Therefore, this study aimed to analyze the effect of 12 weeks of walking (3×/week) on the leukocyte profile and quality of life (QL) of elderly women with kOA. Sixteen women (age: 67±4 years, body mass index: 28.07±4.16 kg/m2) participated in a walking program. The variables were assessed before and after 12 weeks of training with a progressively longer duration (30-55min) and higher intensity (72-82% of HRmax determined using a graded incremental treadmill test). The QL was assessed using the Medical Outcomes Study 36-Item Short Form Health Survey (SF-36), and blood samples were collected for analysis with a cell counter and the San Fac flow cytometer. Walking training resulted in a 47% enhancement of the self-reported QL (P<0.05) and a 21% increase in the VO2max (P<0.0001) in elderly women with kOA. Furthermore, there was a reduction in CD4+ cells (pre=46.59±7%, post=44.58±9%, P=0.0189) and a higher fluorescence intensity for CD18+CD4+ (pre=45.30±10, post=64.27±33, P=0.0256) and CD18+CD8+ (pre=64.2±27, post=85.02±35, P=0.0130). In conclusion, the walking program stimulated leukocyte production, which may be related to the immunomodulatory effectof exercise. Walking also led to improvements in the QL and physical performance in elderly women with kOA.

Study Type : Human Study
Additional Links
Pharmacological Actions : Immunomodulatory : CK(2249) : AC(733)

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