Effect of Acute Phenylcapsaicin Intake on Trained Cross-Training Athletes: a Randomized, Placebo-Controlled Crossover Study
试验速览
- 阶段
- 不适用
- 状态
- 进行中（未招募）
- 入组人数
- 50
- 试验地点
- 1
- 主要终点
- Performance
研究概览
简要总结
The aim of this study is to investigate the effect of acute phenylcapsaicin intake during a cross-training session on perceived exertion, performance, and recovery in cross-training athletes.
详细描述
Capsaicin appears to enhance athletic performance by reducing perceived effort, increasing mechanical performance (e.g., total volume load), and decreasing muscle damage. Given the close relationship between the metabolic and physiological responses of cross-training and supplementation with Phenylcapsaicin (PC), it could be expected that consuming capsaicin during cross-training would have a favorable impact on perceived effort, recovery, and performance.
25 women and 24 men trained in CrossFit consumed either Phenylcapsaicin (PC) or a placebo during a CrossFit class, which consisted of a 16-minute weightlifting segment and a 15-minute WOD. Both the Rating of Perceived Exertion (RPE) and the Perceived Recovery Status scale (RPS) were administered at the beginning of the session and at the end of each segment of the CrossFit session. DOMS was assessed using a visual analog scale at 24 and 48 hours after the CrossFit session.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Other
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 35 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Age: 18-35 years.
- •Body mass index: 18.5-30 kg/m
- •Ability to understand the instructions, objectives, and study protocol.
- •Minimum of 3 years of experience in crosstraining, with at least 6 hours of weekly training over the past 3 months.
- •Resident on the island of Tenerife.
排除标准
- •History of a significant adverse cardiovascular event, renal insufficiency, cirrhosis, eating disorder, weight control surgical intervention, or type 2 diabetes mellitus.
- •Any chronic pathology in which the intake of nutritional supplements, especially pungent components, is not recommended.
- •Any condition that, in the investigator's judgment, would impair the ability to participate in the study or represent a personal risk to the participant.
- •Use of medications that may affect the study results.
- •Unstable body weight for 3 months prior to the start of the study (> 4 kg loss or gain in weight).
- •Active tobacco abuse or illicit drug use, or history of treatment for alcohol abuse.
- •On a special diet or prescribed for other reasons (e.g., celiac disease).
研究组 & 干预措施
Phenylcapsaicin
2.5 mg of Phenylcapsaicin
干预措施: Phenylcapsaicin (Dietary Supplement)
Placebo
Preparation of colorants, sweeteners, aromas, and acidulants
干预措施: Placebo (Dietary Supplement)
结局指标
主要结局
Performance
时间窗: 60min
Performance measured through the countermovement jump
次要结局
- Heart rate(60min)
- Subjective fatigue throughe the RPE scale(60min)
- Recovery(60min)
- Delayed-onset muscle soreness (DOMS)(60min)
- Capillar lactate levels(60min)
- Performance: Weight used in the crosstraining session(60min)
- Performance: Time performed in the crosstraining session(60min)
研究者
Lucas Jurado-Fasoli
PhD
Universidad de Granada