Effects of mate tea consumption on muscle strength and oxidative stress markers after eccentric exercise

Abstract

Dietary phytochemical supplementation may improve muscle recovery from exercise. In this study, we investigated the effect of mate tea (MT) consumption -a phenol-rich beverage -on muscle strength and oxidative stress biomarkers after eccentric exercise. In a randomised, crossover design, twelve men were assigned to drink either MT or water (control; CON) for 11 d. On the 8th day, subjects performed three sets of twenty maximal eccentric elbow flexion exercises. Maximal isometric elbow flexion force was measured before and at 0, 24, 48 and 72 h after exercise. Blood samples were obtained before and at 24, 48 and 72 h after exercise and analysed for total phenolics, GSH, GSSG, GSH:GSSG ratio and lipid hydroperoxides (LOOH). After eccentric exercise, muscle strength was significantly reduced over time, regardless of treatments. However, MT improved the rate of strength recovery by 8·6 % on the 1st day after exercise (P < 0·05). Plasma concentration of total phenolic compounds was higher in MT than in CON at all time points (P < 0·05) but decreased significantly at 72 h after exercise in both trials (P < 0·05). Blood levels of GSH were significantly decreased at 48 and 72 h after exercise in CON (P < 0·05) but did not change over time in MT. No significant changes were observed for GSSG, GSH:GSSG ratio and LOOH levels. MT intake did not influence muscle strength at all time points assessed but hastened the strength recovery over 24 h after exercise. MT also favoured the concentration of blood antioxidant compounds.

Nutritional and Supplementation Strategies to Prevent and Attenuate Exercise-Induced Muscle Damage: a Brief Review

“…This review outlined a wide assortment of ingredients, functional foods, and dietary supplements that have been shown to affect EIMD-related outcomes, with varying levels of success. In addition to the topics covered in the present review, many emergent nutritional and supplementation strategies have not been fully explored, including black tea-sourced polyphenols [161], blueberries [162], chondroitin sulfate [163], high chlorogenic acid coffee [164], fasting [165], garlic [166], leucine metabolites such as HICA [167], lemon verbena [168], lychee [169], mate tea [170], pequi fruit [171, 172], quercetin [173], saffron [174], selenium [175], sesame [176], spinach [177], and tomato juice [178, 179]. Future research in these nascent areas may shed new light on potential treatment options for EIMD.…”

Yerba Maté (Ilex paraguariensis) Metabolic, Satiety, and Mood State Effects at Rest and during Prolonged Exercise

“…Anti-oxidant compounds in YM such as flavonoids and polypheonols are common in other herbal teas and may affect nitric oxide levels, which have been shown to be effective in inducing vasodialatory effects [ 37 ] when combined with exercise [ 27 , 38 ]. Anti-oxidant compounds of YM have been recently attributed to accelerating muscle strength recovery 24 h after exercise, suggesting that YM favored the concentration of blood antioxidant compounds [ 39 ]. Therefore, YM active ingredients may have played a synergetic role in the metabolic effects found during exercise.…”

“…Most of the studies cited within the present study have attributed their YM ingestion effects to the several bioactive ingredients and only some of those studies have analyzed YM supplement (e.g., total phenolic compounds, caffeine, and saponins) for such ingredients as part of their protocol [ 39 ]. However, methodological differences in terms of YM supplement preparations and methods used should be considered for such comparisons.…”

“…However, methodological differences in terms of YM supplement preparations and methods used should be considered for such comparisons. For example, the encapsulated ground green YM leaves used in this study is different from lyophilized YM extracts brewed and used elsewhere [ 39 ]. Also, the study did not specifically analyze the polyphenolic content of YM, and only relied on the supplier’s certificate of analysis for YM content, which makes it difficult to attribute findings to a single YM ingredient.…”

Adipose tissue of female Wistar rats respond to Ilex paraguariensis treatment after ovariectomy surgery

“…However, the impressive modulation of oxidation and lipid synthesis from glucose in WAT contributes to a small elucidation of the broad effects of this extract, which is capable of modulating other key tissues of energy metabolism. 32 , 33 …”