Capsaicin supplementation did not increase skeletal muscle oxygen saturation and muscular endurance during resistance exercise: a randomized and crossover study

Volino-Souza, Mônica; Oliveira, Gustavo Vieira de; Carvalho, Iana Hercules de; Conté-Júnior, Carlos Adam; Álvares, Thiago Silveira

doi:10.1007/s11332-022-00982-5

Cited by 2 publications

(5 citation statements)

References 21 publications

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“…Thus, 13 studies were found to satisfy the inclusion criteria in the first phase [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 25 ]. In the second phase, an additional 532 search results were found, and one study satisfied the inclusion criteria [ 24 ]. After completing both phases of the search process, 14 studies were included for analysis in this review ( Figure 1 ) [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 ].…”

Section: Resultsmentioning

confidence: 99%

“…Seven studies with a total of 89 participants (5 females and 84 males) evaluated muscular endurance [ 13 , 14 , 17 , 18 , 20 , 23 , 24 ]. Capsaicin supplementation was provided in five studies, which used doses of 1.2 mg, 12 mg, or 24 mg, provided 45 min before exercise.…”

Section: Resultsmentioning

confidence: 99%

“…The plotted squares denote effect sizes, and the whiskers denote their 95% CIs. The analysis is based on seven included studies [ 13 , 14 , 17 , 18 , 20 , 23 , 24 ].…”

Section: Figurementioning

confidence: 99%

“…The consumption of 10 mg/kg of capsaicin enhanced endurance performance and these effects were largely attributed to the increase in fatty acid utilization [ 11 ]. Deriving from these findings in animal models, recent studies have explored the effects of capsaicin and capsiate on exercise performance in humans [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 ]. One of the initial studies investigated the effects of capsaicin on muscular endurance in resistance exercise, using a protocol involving four sets performed to muscular failure with 70% of one-repetition maximum (1RM) in the squat [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

“…Such an analysis would be valuable given that some studies might have been underpowered to detect a significant effect. Additionally, this area of research is growing, as evidenced by the publication of seven studies on the effects of capsaicin and capsiate on endurance performance in 2021 and 2022 [ 17 , 18 , 19 , 20 , 23 , 24 , 25 ]. Due to the growing evidence and the conflicting findings, we aimed to perform a systematic review and meta-analysis exploring the effects of capsaicin and capsiate on endurance performance in humans.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Capsaicin and Capsiate on Endurance Performance: A Meta-Analysis

et al. 2022

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Several studies have explored the effects of capsaicin and capsiate on endurance performance, with conflicting findings. This systematic review aimed to perform a meta-analysis examining the effects of capsaicin and capsiate vs. placebo on endurance performance in humans. Seven databases were searched to find eligible studies. The effects of capsaicin and capsiate on aerobic endurance (e.g., time-trials or time-to-exhaustion tests), muscular endurance (e.g., repetitions performed to muscular failure), and rating of perceived exertion (RPE) were examined in a random-effects meta-analysis. Fourteen studies (n = 183) were included in the review. Most studies provided capsaicin or capsiate in the dose of 12 mg, 45 min before exercise. In the meta-analysis for aerobic endurance, there was no significant difference between the placebo and capsaicin/capsiate conditions (Cohen’s d: 0.04; 95% confidence interval: −0.16, 0.25; p = 0.69). In subgroup meta-analyses, there were no significant differences between the placebo and capsaicin/capsiate conditions when analyzing only studies that used time-trials (p = 0.20) or time-to-exhaustion tests (p = 0.80). In the meta-analysis for muscular endurance, a significant ergogenic effect of capsaicin/capsiate was found (Cohen’s d: 0.27; 95% confidence interval: 0.10, 0.43; p = 0.002). When analyzing set-specific effects, an ergogenic effect of capsaicin/capsiate was found in set 1, set 2, and set 3 (Cohen’s d: 0.21–29). Capsaicin/capsiate ingestion reduced RPE following muscular endurance (p = 0.03) but not aerobic endurance tests (p = 0.58). In summary, capsaicin/capsiate supplementation acutely enhances muscular endurance, while the effects on aerobic endurance are less clear.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…The plotted squares denote effect sizes, and the whiskers denote their 95% CIs. The analysis is based on seven included studies [ 13 , 14 , 17 , 18 , 20 , 23 , 24 ].…”

Section: Figurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of Capsaicin and Capsiate on Endurance Performance: A Meta-Analysis

et al. 2022

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Automatic Detection of Fatigued Gait Patterns in Older Adults: An Intelligent Portable Device Integrating Force and Inertial Measurements with Machine Learning

Zhang,

Hong,

et al. 2024

Ann Biomed Eng

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Purpose This study aimed to assess the feasibility of early detection of fatigued gait patterns for older adults through the development of a smart portable device. Methods The smart device incorporated seven force sensors and a single inertial measurement unit (IMU) to measure regional plantar forces and foot kinematics. Data were collected from 18 older adults walking briskly on a treadmill for 60 min. The optimal feature set for each recognition model was determined using forward sequential feature selection in a wrapper fashion through fivefold cross-validation. The recognition model was selected from four machine learning models through leave-one-subject-out cross-validation. Results Five selected characteristics that best represented the state of fatigue included impulse at the medial and lateral arches (increased, p = 0.002 and p < 0.001), contact angle and rotation range of angle in the sagittal plane (increased, p < 0.001), and the variability of the resultant swing angular acceleration (decreased, p < 0.001). The detection accuracy based on the dual signal source of IMU and plantar force was 99%, higher than the 95% accuracy based on the single source. The intelligent portable device demonstrated excellent generalization (ranging from 93 to 100%), real-time performance (2.79 ms), and portability (32 g). Conclusion The proposed smart device can detect fatigue patterns with high precision and in real time. Significance: The application of this device possesses the potential to reduce the injury risk for older adults related to fatigue during gait.

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Capsaicin supplementation did not increase skeletal muscle oxygen saturation and muscular endurance during resistance exercise: a randomized and crossover study

Cited by 2 publications

References 21 publications

Effects of Capsaicin and Capsiate on Endurance Performance: A Meta-Analysis

Effects of Capsaicin and Capsiate on Endurance Performance: A Meta-Analysis

Automatic Detection of Fatigued Gait Patterns in Older Adults: An Intelligent Portable Device Integrating Force and Inertial Measurements with Machine Learning

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