Dose-response relationship between endurance training prescription variables and increases in aerobic performance of healthy and unhealthy middle and very old individuals aged 70 years and older

Background: The objectives of this systematic review and meta-analysis were to quantify the effectiveness of endurance training (ET) on aerobic performance (i.e., peak oxygen uptake (VO2peak)) in healthy and unhealthy middle and very old adults aged 70 years and older, and to provide dose response relationships of training prescription variables (in terms of frequency, and volume). Methods: Several scholarly databases (i.e., PubMed/MEDLINE, SpringerLink, ScienceDirect Journals, and Taylor & Francis Online Journals) were searched, identifying randomized controlled studies that investigated the effectiveness of ET on VO2peak in older adults. Standardized mean differences (SMD) were calculated. Results: In terms of changes differences between experimental and control group, ET produced significant large effects on VO2peak performance (SMD = 2.64 (95%CI 0.97%4.31)). The moderator analysis revealed that health status variable moderated ET effect onVO2peak performance. More specifically, ET produced larger SMD magnitudes on VO2peak performance in healthy compared with unhealthy individuals. With regard to the dose response relationships, findings from the meta-regression showed that none of the included training prescription variables predicted ET effects on VO2peak performance. Conclusions: ET is an effective mean for improving aerobic performance in healthy older adults when compared with their unhealthy counterparts

Effect of feeding lactic acid bacteria and fermented milk on specific and non-specific immune response of mice infected with Klebsiella pneumoniae AD-1

The diets of six groups of weaned mice were supplemented with ultra high temperature (UHT) milk containing a washed suspension of lactic acid bacteria (mixture of 8 strains) or with UHT milk fermented by the same strains and heat-treated or not. Control groups received physiological saline or UHT milk only. The mice were infected intranasally by Klebsiella pneumoniae AD-1 on the 13th d of feeding. The effect on the immune system (specific and nonspecific) before and after infection was evaluated by measuring the phagocytosis of alveolar macrophages (using zymosan particles) and by measuring of total immunoglobulin G and A levels in serum and in pulmonary fluid (using the enzyme-linked immunosorbent assay method). Postinfection survival was 0.7 d longer for mice receiving fermented milk than for the saline control group. The percent phagocytosis did not vary significantly, while serum immunoglobulin G levels differed between mice fed fermented milk and those fed bacterial suspensions in unfermented milk. Fermentation appears to be essential for the beneficial effects on the immune system and survival time; this effect no longer occurs after pasteurization of fermented milk

Marseille. Collection de copies et de documents originaux concernant l'histoire de Marseille. NAL 1328

Numérisation effectuée à partir d'un document original

Meta-regression analyses of studies concerning cortisol changes induced by soccer match-play, when including Coelho et al. [29].

<p>Meta-regression analyses of studies concerning cortisol changes induced by soccer match-play, when including Coelho et al. [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0186100#pone.0186100.ref029" target="_blank">29</a>].</p

Funnel plot showing evidence of publication bias for the meta-analysis concerning testosterone changes induced by soccer match when pooling all studies, including (5a) and removing (5b) Coelho et al. [29].

<p>Funnel plot showing evidence of publication bias for the meta-analysis concerning testosterone changes induced by soccer match when pooling all studies, including (5a) and removing (5b) Coelho et al. [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0186100#pone.0186100.ref029" target="_blank">29</a>].</p

L'Écho : grand quotidien d'information du Centre Ouest

30 octobre 19311931/10/30 (A60).Appartient à l’ensemble documentaire : PoitouCh

Qualitative studies assessed hormonal responses between pre- to post- soccer match (mean ± SD and/or relative effect %).

<p>Qualitative studies assessed hormonal responses between pre- to post- soccer match (mean ± SD and/or relative effect %).</p