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Scholten SD, Sergeev IN, Song Q, et al. Effects of vitamin D and quercetin, alone and in combination, on cardiorespiratory fitness and muscle function in physically active male adults. Content provided by Verdure Sciences Feb White Paper. Cognitive health, mental acuity and brain support categories have seen tremendous growth.

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More than ever, stress is extremely common among adults today. Show more. CONTINUE TO SITE Or wait Benefits of grape polyphenols To see how grape polyphenols might be used in this way the researchers evaluated a number of papers on the subject.

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Visits 1, 3 and 5 consisted of a two-part graded exercise test including a submaximal incremental protocol, with a 10 min recovery period; and a maximal test to volitional exhaustion.

Data revealed that, at lower intensities of exercise, known as lactate threshold 1 LT1 , OliPhenolia consumption enhanced running economy, oxygen consumption, and respiratory parameters. Additionally, perceived exertion and acute recovery both improved, however other higher intensity respiratory parameters , known as lactate threshold 2 LT2 , were unaffected.

The authors hypothesise the benefits here may come as a result of the HT and related metabolites impacting mitochondrial function. Whilst mitochondrial function was not directly assessed, it is feasible that HT and related gut-derived phenolic metabolites may have facilitated improved oxygen cost responses observed at the onset of exercise and during LT1.

Although not measured in this study, this may support the proposed benefits of OliP in a submaximal exercise domain. There were several limitations to the study. While improvements were found in some parameters, not all provided decisive results. Authors: Justin D.

Roberts, Joseph B. Lillis, Jorge Marques Pinto, Havovi Chichger, Álvaro López-Samanes, Juan Del Coso, Rodrigo Zacca and Ashley G.