Supplementation with a Polyphenol-Rich Extract, PerfLoad^®, Improves Physical Performance during High-Intensity Exercise: A Randomized, Double Blind, Crossover Trial.

Thus, at the end of the exercise period, the difference of variation between both groups reached 15.5% ( p = 0.047), which almost stabilized until the recovery period with a strong trend of a difference of 12.4% ( p = 0.085).

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While the placebo group experienced an additional elevation of BPP at the end of the exercise, supplemented subjects exhibited a decrease, reaching the basal level they had 60 min before; at 11.4 mmHg ( p = 0.095), the difference between both groups represents a significant trend.

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