Abstract:
:Aging is associated with oxidative stress that may increase susceptibility to respiratory infections (RIs). We aimed to assess the impact of exercise training on the risk of RIs in older adults and on a targeted metabolomic profile of stress oxidative lipid peroxidation-related metabolites. METHODS:In an 8-month clinical trial, 38 participants over 60 years of age were allocated to an exercise group (EG), in which participants underwent 90-min training sessions three times/week(n = 20), or a control group (CG), in which participants maintained daily physical activities(n = 18). Daily respiratory symptoms and RIs number and severity were collected. Serum by-products were assessed by comprehensive two-dimensional gas chromatography coupled to mass spectrometry with time of flight analyzer. Serum metabolomic profiling comprised 76 metabolites (alcohols, aldehydes, alkanes, and ketones). Principal components analysis and ANOVA-simultaneous component analysis were used to evaluate the metabolomic profile change. RESULTS:The odds ratio of RIs for the EG was 2.0 CI 95% [0.2;25]. The incidence of RIs was 47% [23;70] in the EG vs. 44%[12;77] in the CG. The metabolomic profiling showed that alkanes and aldehydes classes differed between the EG and the CG before and after intervention. A calibration model showed a relation between the metabolites from four main classes (ketones, alcohols, alkanes and aldehydes) and the prediction of the number of RIs. CONCLUSION:Moderate exercise training, in older adults, compared with no exercise in controls, did not show a difference in the risk of RIs. A pattern of lipid peroxidation was associated with the number of RIs.
journal_name
Eur J Sport Scijournal_title
European journal of sport scienceauthors
Silva D,Arend E,Rocha SM,Rudnitskaya A,Delgado L,Moreira A,Carvalho Jdoi
10.1080/17461391.2018.1499809subject
Has Abstractpub_date
2019-04-01 00:00:00pages
384-393issue
3eissn
1746-1391issn
1536-7290journal_volume
19pub_type
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journal_title:European journal of sport science
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journal_title:European journal of sport science
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journal_title:European journal of sport science
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journal_title:European journal of sport science
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