Effects of Six Weeks of Quercetin Supplementation on Physical Performance in ROTC Cadets

Bigelman, Kevin A.; Fan, Eugene H.; Chapman, Donald P.; Freese, Eric C.; Trilk, Jennifer L.; Cureton, Kirk J.

doi:10.7205/milmed-d-09-00088

Cited by 37 publications

(25 citation statements)

References 28 publications

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“…However, as described above, no differences were observed in any groups on measures related to oxygen uptake by quercetin supplementation. These results are similar to those obtained by Bigelman et al [30]. There are several potential reasons for these results: firstly, VO 2 peak is influenced by muscle mitochondrial oxidative capacity, but relative to endurance capacity, it is limited to a greater extent by oxygen delivery via the cardiovascular system [31].…”

Section: Discussionsupporting

confidence: 87%

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Ergogenic effects of quercetin supplementation in trained rats

Casuso

Martínez‐Amat

López

et al. 2013

Journal of the International Society of Sports Nutrition

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BackgroundQuercetin is a natural polyphenolic compound currently under study for its ergogenic capacity to improve mitochondrial biogenesis. Sedentary mice have exhibited increased endurance performance, but results are contradictory in human models.MethodsWe examined the effects of six weeks of endurance training and quercetin supplementation on markers of endurance performance and training in a rodent model. Rats were randomly assigned to one of the following groups: placebo+sedentary (PS), quercetin+sedentary (QS), placebo+endurance training (PT) and quercetin+endurance training (QT). Quercetin was administered at a dose of 25 mg/kg on alternate days. During six weeks of treatment volume parameters of training were recorded, and after six weeks all groups performed a maximal graded VO2 max test and a low-intensity endurance run-to-fatigue test.ResultsNo effects were found in VO2 peak (p>0.999), nor in distance run during low-intensity test, although it was 14% greater in QT when compared with PT (P = 0.097). Post-exercise blood lactate was increased in QT when compared with PT (p=0.023) and also in QS compared with PS (p=0.024).ConclusionsThis study showed no effects in VO2 peak, speed at VO2 peak or endurance time to exhaustion after six weeks of quercetin supplementation compared with placebo in trained rats. Quercetin was show to increase blood lactate production after high-intensity exercise.

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Section: Discussionsupporting

confidence: 87%

“…This could be a more appropriate supplement to increase oxygen consumption [16]. However, previous work did not find any ergogenic effect of quercetin and EGCG supplementation in a moderately trained sample [30]. …”

Section: Discussionmentioning

confidence: 99%

Ergogenic effects of quercetin supplementation in trained rats

Casuso

Martínez‐Amat

López

et al. 2013

Journal of the International Society of Sports Nutrition

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“…It should also be noted that the placebo group in this study had a 1.5% performance improvement. The study by Bigelman et al15 found no significant difference in VO 2peak or anaerobic performance measures with 6 weeks of quercetin supplementation in moderately trained military personnel. Neither of these two studies investigated the antioxidant effects of quercetin supplementation.…”

Section: Introductionmentioning

confidence: 93%

Long-term quercetin supplementation reduces lipid peroxidation but does not improve performance in endurance runners

Scholten¹,

Сергеев²

2013

OAJSM

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PurposeTo evaluate the effects of chronic quercetin supplementation on endurance performance and antioxidant status in long distance runners. We hypothesized that an improved antioxidant status can be associated with enhanced performance.MethodsDuring 6 weeks of supplementation utilizing a double blind, randomized design, young male subjects received quercetin (1000 mg/day) or placebo while maintaining their current training schedules.ResultsFollowing the end of the supplementation period, there was a significant time × supplement interaction for serum malondialdehyde (MDA), an indicator of lipid peroxidation. There were no significant pre- to post-supplement changes in parameter values employed for measuring total antioxidant capacity, superoxide dismutase activity, and protein oxidation (protein carbonyl) in serum. There were also no significant pre- to post-supplement differences in VO2peak, running economy, heart rate, and rating of perceived exertion (RPE) during the 10 km time trial.ConclusionThe findings obtained indicate that there is a relationship between quercetin supplementation and the statistically significant decreasing trend in MDA levels following 6 weeks of supplementation and training. This evidence suggests that quercetin can reduce oxidative stress (lipid peroxidation). However, performance improvements were not significant (as measured by VO2peak, running economy, heart rate, and RPE).

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“…Although quercetin supplementation shows potential endurance performance benefits in cell culture and in vivo animal studies [160, 161], research on its use as a supplement in humans are less clear. Some studies have reported increased endurance exercise capacity and performance in humans following supplementation with quercetin [162–164]; however, many have failed to find benefits [165–171]. Of the 2 studies [172, 173] on ultra-endurance trained subjects, both have shown no significant benefit.…”

Section: Reviewmentioning

confidence: 99%

Nutritional implications for ultra-endurance walking and running events

Williamson

2016

Extrem Physiol Med

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This paper examines the various nutritional challenges which athletes encounter in preparing for and participating in ultra-endurance walking and running events. Special attention is paid to energy level, performance, and recovery within the context of athletes’ intake of carbohydrate, protein, fat, and various vitamins and minerals. It outlines, by way of a review of literature, those factors which promote optimal performance for the ultra-endurance athlete and provides recommendations from multiple researchers concerned with the nutrition and performance of ultra-endurance athletes. Despite the availability of some research about the subject, there is a paucity of longitudinal material which examines athletes by nature and type of ultra-endurance event, gender, age, race, and unique physiological characteristics. Optimal nutrition results in a decreased risk of energy depletion, better performance, and quicker full-recovery.

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Effects of Six Weeks of Quercetin Supplementation on Physical Performance in ROTC Cadets

Abstract: Six weeks of dietary quercetin supplementation in moderately trained individuals conducting military physical training did not improve VO(2peak) or performance on the APFT, BMPU, WAnT, and 36.6-m sprint.

Cited by 37 publications

References 28 publications

Ergogenic effects of quercetin supplementation in trained rats

Ergogenic effects of quercetin supplementation in trained rats

Long-term quercetin supplementation reduces lipid peroxidation but does not improve performance in endurance runners

Nutritional implications for ultra-endurance walking and running events

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