Effect of β-alanine supplementation on 20 km cycling time trial performance

James, Ruth; Cooper, Simon B.; Robertson, Jacques; Martín, Daniel; Harris, Roger C.; Sale, Craig

doi:10.1590/1807-55092014000300395

Cited by 7 publications

(6 citation statements)

References 30 publications

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“…This is in agreement with the recent data of Hannah et al 39 which showed no effect of β-alanine on maximal explosive voluntary contractions, suggesting that calcium sensitivity and release might not be the primary mechanisms by which increased carnosine improves whole muscle exercise in humans. Exercise of longer than 4 min in duration was improved with β-alanine supplementation, with greater effect sizes than exercise 1–4 min in duration (0.233 vs 0.210), though we speculate that this may be due to shorter duration protocols (6–7 min),7 40 which may be more susceptible to increases in muscle carnosine if its primary mechanism is considered to be that of pH buffering, being grouped with those of longer duration (30–60 min) 41 42…”

Section: Discussionmentioning

confidence: 82%

β-alanine supplementation to improve exercise capacity and performance: a systematic review and meta-analysis

et al. 2016

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Objective To conduct a systematic review and metaanalysis of the evidence on the effects of β-alanine supplementation on exercise capacity and performance. Design This study was designed in accordance with PRISMA guidelines. A 3-level mixed effects model was employed to model effect sizes and account for dependencies within data. Data sources 3 databases (PubMed, Google Scholar, Web of Science) were searched using a number of terms ('β-alanine' and 'Beta-alanine' combined with 'supplementation', 'exercise', 'training', 'athlete', 'performance' and 'carnosine'). Eligibility criteria for selecting studies Inclusion/ exclusion criteria limited articles to double-blinded, placebo-controlled studies investigating the effects of β-alanine supplementation on an exercise measure. All healthy participant populations were considered, while supplementation protocols were restricted to chronic ingestion. Cross-over designs were excluded due to the long washout period for skeletal muscle carnosine following supplementation. A single outcome measure was extracted for each exercise protocol and converted to effect sizes for meta-analyses. Results 40 individual studies employing 65 different exercise protocols and totalling 70 exercise measures in 1461 participants were included in the analyses. A significant overall effect size of 0.18 (95% CI 0.08 to 0.28) was shown. Meta-regression demonstrated that exercise duration significantly ( p=0.004) moderated effect sizes. Subgroup analyses also identified the type of exercise as a significant ( p=0.013) moderator of effect sizes within an exercise time frame of 0.5-10 min with greater effect sizes for exercise capacity (0.4998 (95% CI 0.246 to 0.753)) versus performance (0.1078 (95% CI −0.201 to 0.416)). There was no moderating effect of training status ( p=0.559), intermittent or continuous exercise ( p=0.436) or total amount of β-alanine ingested ( p=0.438). Co-supplementation with sodium bicarbonate resulted in the largest effect size when compared with placebo (0.43 (95% CI 0.22 to 0.64)). Summary/conclusions β-alanine had a significant overall effect while subgroup analyses revealed a number of modifying factors. These data allow individuals to make informed decisions as to the likelihood of an ergogenic effect with β-alanine supplementation based on their chosen exercise modality.

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Section: Discussionmentioning

confidence: 82%

β-alanine supplementation to improve exercise capacity and performance: a systematic review and meta-analysis

et al. 2016

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“…These findings are also in accordance with other studies demonstrating no effect of β-alanine supplementation on longer duration (30 min -1 hr) cycling TT performance (Chung. et al, 2014;James et al, 2014).…”

Section: Discussionmentioning

confidence: 98%

The effect of β‐alanine supplementation on cycling time trials of different length

Bellinger

Minahan

2015

European Journal of Sport Science

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The varying results reported in response to β-alanine supplementation may be related to the duration and nature of the exercise protocol employed. We investigated the effects of β-alanine supplementation on a wide range of cycling performance tests in order to produce a clear concise set of criteria for its efficacy. Fourteen trained cyclists (Age = 24.8 ± 6.7 years; VO2max = 65.4 ± 10.2 mL·kg·min(-1)) participated in this placebo-controlled, double-blind study. Prior to supplementation, subjects completed two (familiarization and baseline) supramaximal cycling bouts until exhaustion (120% pre-supplementation VO2max) and two 1-, 4- and 10-km cycling time trial (TT). Subjects then supplemented orally for 4 weeks with 6.4 g/d placebo or β-alanine and repeated the battery of performance tests. Blood lactate was measured pre-exercise, post-exercise and 5 min post-exercise. β-alanine supplementation elicited significant increases in time to exhaustion (TTE) (17.6 ± 11.5 s; p = 0.013, effect compared with placebo) and was likely to be beneficial to 4-km TT performance time (-7.8 ± 8.1 s; 94% likelihood), despite not being statistically different (p = 0.060). Performance times in the 1- and 10-km TT were not affected by treatment. For the highly trained cyclists in the current study, β-alanine supplementation significantly extended supramaximal cycling TTE and may have provided a worthwhile improvement to 4-km TT performance. However, 1- and 10-km cycling TT performance appears to be unaffected by β-alanine supplementation.

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“…Over long time periods, it is believed that it can increase the effect of international road cyclist training of anaerobic and aerobic high effect time 1-day micro cycle anaerobic threshold but long-term efficiency as 4-to-8-week same periodization because estimated to power and lactate mmol increase [5,20,24,25,26,27,28,29]. Male cyclist at least per week 7 hours training about 20 km trial load is occur 7/Watt power increase sequence of intervals but increasing mechanism in the muscle would not proper training into beta-alanine use because 48 hours or 24 hours eliminated lactate as well as recovery most speed.…”

Section: Discussionmentioning

confidence: 99%

“…BA supplement most anaerobic glycolytic systems when performance factors can be effect from glycolytic systems energy output and muscle performance energy. Therefore, anaerobic, and aerobic protocols by different time periods resulted in endurance and recovery of the power performance mechanics and pedalling development [23,24]. However, their acute effect was aimed.…”

Section: Methodsmentioning

confidence: 99%

The Aerob and Anaerob Performance Beta-Alanine Supplement and Ergogenic Aid Using to the Power Output Variables in Cyclists: A Cohort Studies Random Model Effect

Kahraman¹

2021

Preprint

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: Supplement the use of ergogenic aids in cyclist’s directly have been improved the body metabolism and hemodynamic factors that are micro supplement in chancing reactions on the body muscle mass and limb muscle. Mostly knowing that, muscle power development progressive fast glycolytic and short time oxidative systems reactions. Sport competition intervals, therefore, during periods has been used specific drinks supported to cyclists. But, be obtained during should be long race times. Athletes directly needed some drug and fluid intake to prevented from metabolic breakdown rapidly the dynamic physiologic performance factors. Beta-alanine supplementation can be direct muscle performance development affects the anaerobic metabolism and capacity. It should be de-termined how the cyclists will use the competitive and training period intervals can increase the cyclists specific sprint and endurance race performance. Science cyclist International Road doses will be created in which, intervals can random effectively the investigate. This study random a cohort studies is examined the effects of beta-alanine supplementation on aerobic and anaerobic power output in specific cyclists. Therefore, we have been databases PubMed, Scopus and Medline initial search 10 August 2020 were created prospective effect the quality of bias work concluded effect size (ES) 95% confidence interval (CI) were used in participant. Participations (N=66) have age range 25 to 38 of the using beta-alanine in training periods to endurance muscle performance, aerobic power, anaerobic power, and sprint time trials. As a result of beta-alanine improved an-aerobic and aerobic power output on 4-week time-dependent trial performance condition. Signifi-cant values are obtained level factor alpha <0.05 and p-value analysis pre-post interactive stand-ardization.

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Effect of β-alanine supplementation on 20 km cycling time trial performance

Cited by 7 publications

References 30 publications

β-alanine supplementation to improve exercise capacity and performance: a systematic review and meta-analysis

β-alanine supplementation to improve exercise capacity and performance: a systematic review and meta-analysis

The effect of β‐alanine supplementation on cycling time trials of different length

The Aerob and Anaerob Performance Beta-Alanine Supplement and Ergogenic Aid Using to the Power Output Variables in Cyclists: A Cohort Studies Random Model Effect

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