Acute Caffeine Ingestion Similarly Enhances Mean and Mean Propulsive Velocity During Resistance Exercise in Trained Men
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 13
- 试验地点
- 1
- 主要终点
- Velocity metrics against different relative loads of one-repetition maximum
研究概览
简要总结
The purpose of this study was to determine whether the acute ergogenic effects of caffeine differ according to the velocity metric used to assess strength performance against different relative loads. Thirteen resistance-trained men completed a triple-blind, randomized, placebo-controlled, crossover study. Participants ingested either caffeine (3 mg·kg-1) or a placebo 60 min before performing bench press and back squat exercises at 25%, 50%, 75%, and 90% of one-repetition maximum (1RM). Mean velocity (MV) and mean propulsive velocity (MPV) were simultaneously recorded using a linear position transducer
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
- Double (Participant, Investigator)
盲法说明
Statistician
入排标准
- 年龄范围
- 18 Years 至 35 Years（Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Age between 18 and 35 years.
- •Body Mass Index (BMI) < 25 kg/m².
- •Resistance-trained individuals (more than 6 months of structured training).
- •Healthy men and women without neurological, cardiometabolic, immunological, or physical conditions that prevent them from exercising.
- •Participants must be able to perform the tests described in the following section.
排除标准
- •History of neuromuscular diseases, heart disease, or conditions that may affect liver or muscle metabolism.
- •Use of drugs, stimulants, or sports supplements that could interfere with the dietary supplement used in the study.
- •Sedentary habits (less than 150 minutes/week of moderate exercise).
- •Having undergone prolonged periods of physical inactivity in the 6 months prior to the study.
- •Engaging in strenuous exercise within 48 hours prior to the tests.• Failure to replicate the same food intake on both experimental days.
- •Consumption of caffeine or any other stimulant after 6 pm on the day before the tests, to avoid headaches, discomfort, or lethargy in regular caffeine consumers.
研究组 & 干预措施
Caffeine
Acute caffeine intake (3 mg·kg-1)
干预措施: Caffeine (Dietary Supplement)
Placebo
Acute placebo intake (3 mg·kg-1 of maltodextrin)
干预措施: Placebo (Dietary Supplement)
结局指标
主要结局
Velocity metrics against different relative loads of one-repetition maximum
时间窗: Through study completion, an average of 3 weeks
Measuring bar mean velocity (during propulsive and braking phases in m/s) and mean propulsive velocity (m/s of the propulsive phase) displacement of the concentric phase during bench press and back squat exercises at 25%, 50%, 75%, and 90%1RM.
次要结局
- Adverse effects(Through study completion, an average of 3 weeks)
研究者
Alberto Pérez-López
Principal Investigator
University of Alcala