Carbohydrate Mouth Rinse Increases High but Not Low Intensity Repetitions to Failure in Resistance-Trained Males

Karayiğit, Raci; Eser, Mustafa; Gür, Fatih; Sarı, Cengizhan; Čepička, Ladislav; Gabryś, Tomasz

doi:10.3390/nu14040875

Cited by 3 publications

(2 citation statements)

References 40 publications

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“…A statistical power analysis was performed for sample size estimation based on the repetitions to failure at 80% 1‐RM in a previous carbohydrate rinsing study (Karayigit et al., 2022). As this study did not present correlation values between conditions, a conservative effect size value of 0.5 was used for the calculation.…”

Section: Methodsmentioning

confidence: 99%

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Habitual carbohydrate ingestion reduces the efficacy of oral carbohydrate rinsing during repetitions to failure

Clarke,

Richardson

2024

European Journal of Sport Science

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Carbohydrate mouth rinsing has been reported to enhance exercise performance although individual variation exists. The present study aimed to investigate the effect of habitual dietary carbohydrate intake on the efficacy of rinsing a 6% carbohydrate solution on the number of bench press repetitions to failure at 60% of 1‐RM. Twenty‐one recreationally active male participants (Mean ± SD) (age: 24 ± 4 years, height: 177.8 ± 7.8 cm, body mass: 78.6 ± 8.1 kg; bench press 1‐RM: 73.3 ± 20.5 kg) performed bench press repetitions to failure at 60% 1‐RM following rinsing with 25 mL of a 6% carbohydrate (CHO), an artificially sweetened solution (PLA) and a non‐rising control condition (CON) in a randomised cross‐over design. A 7‐day dietary record was completed prior to the first session and subsequently analysed for daily carbohydrate consumption. The number of repetitions performed during CHO (24 ± 4) was higher than CON [21 ± 4; p < 0.001; 95% CI: 1, 4; d = 0.64], as was PLA [23 ± 4; p = 0.002; 95% CI: 1, 3; d = 0.48]. However, there was a large, negative relationship [r = −0.68 (95% CI: −0.86, −0.36), p < 0.001] between daily relative carbohydrate intake (g kg−1) and the difference in the number of repetitions between CHO and PLA. The present study suggests the existence of an inverse relationship between daily carbohydrate ingestion and the efficacy of carbohydrate mouth rinsing; participants who consumed the most daily carbohydrate were generally less likely to see an increase in performance with carbohydrate rinsing.

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Section: Methodsmentioning

confidence: 99%

“…For example, Karayigit et al. (2022) reported that CMR increased the number of bench press repetitions to failure at 80% but not 40% of 1‐RM.…”

Section: Introductionmentioning

confidence: 99%

Habitual carbohydrate ingestion reduces the efficacy of oral carbohydrate rinsing during repetitions to failure

Clarke,

Richardson

2024

European Journal of Sport Science

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Maximal Number of Repetitions at Percentages of the One Repetition Maximum: A Meta-Regression and Moderator Analysis of Sex, Age, Training Status, and Exercise

Nuzzo,

Pinto,

Nosaka

et al. 2023

Sports Med

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The maximal number of repetitions that can be completed at various percentages of the one repetition maximum (1RM) [REPS ~ %1RM relationship] is foundational knowledge in resistance exercise programming. The current REPS ~ %1RM relationship is based on few studies and has not incorporated uncertainty into estimations or accounted for between-individuals variation. Therefore, we conducted a meta-regression to estimate the mean and between-individuals standard deviation of the number of repetitions that can be completed at various percentages of 1RM. We also explored if the REPS ~ %1RM relationship is moderated by sex, age, training status, and/or exercise. A total of 952 repetitions-to-failure tests, completed by 7289 individuals in 452 groups from 269 studies, were identified. Study groups were predominantly male (66%), healthy (97%), < 59 years of age (92%), and resistance trained (60%). The bench press (42%) and leg press (14%) were the most commonly studied exercises. The REPS ~ %1RM relationship for mean repetitions and standard deviation of repetitions were best described using natural cubic splines and a linear model, respectively, with mean and standard deviation for repetitions decreasing with increasing %1RM. More repetitions were evident in the leg press than bench press across the loading spectrum, thus separate REPS ~ %1RM tables were developed for these two exercises. Analysis of moderators suggested little influences of sex, age, or training status on the REPS ~ %1RM relationship, thus the general main model REPS ~ %1RM table can be applied to all individuals and to all exercises other than the bench press and leg press. More data are needed to develop REPS ~ %1RM tables for other exercises.

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Carbohydrate Mouth Rinse and Spray Improve Prolonged Exercise Performance in Recreationally Trained Male College Students

Shirai

Wadazumi

Hirata

et al. 2022

Sports

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Mouth rinsing with a carbohydrate (CHO) solution has emerged as a sports nutrition strategy to increase endurance performance. This study aimed to clarify the effects of two forms of CHO sensing in the mouth (i.e., CHO mouth rinse (CMR) and CHO mouth spray (CMS)) on exercise performance during prolonged exercise, including ultra-high intensity intermittent exercise over time. We conducted the following experimental trials: (1) 6% glucose solution (G), (2) 6% CMR, (3) 6% CMS, and (4) water (WAT). These trials were conducted at least 1 week apart in a randomized crossover design. Eight male college students performed constant-load exercise for 60 min (intensity 40% VO2peak), four sets of the Wingate test (three 30 s Wingate tests with a 4 min recovery between each test), and a constant-load exercise for 30 min (intensity 40% VO2peak). The mean exercise power output (Watt), ratings of perceived exertion, and blood glucose levels were measured. We found that the mean power values of the CMR and CMS in the third and fourth sets was significantly higher than that of WAT (p < 0.05), and that the G trial did not show a significant difference from any other trial. Thus, when compared to G or WAT, CMR and CMS can help improve endurance exercise performance.

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Carbohydrate Mouth Rinse Increases High but Not Low Intensity Repetitions to Failure in Resistance-Trained Males

Cited by 3 publications

References 40 publications

Habitual carbohydrate ingestion reduces the efficacy of oral carbohydrate rinsing during repetitions to failure

Habitual carbohydrate ingestion reduces the efficacy of oral carbohydrate rinsing during repetitions to failure

Maximal Number of Repetitions at Percentages of the One Repetition Maximum: A Meta-Regression and Moderator Analysis of Sex, Age, Training Status, and Exercise

Carbohydrate Mouth Rinse and Spray Improve Prolonged Exercise Performance in Recreationally Trained Male College Students

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