The Effect of BioSteel Sports Drink Supplementation on Muscular Fatigue, Cognitive Function, and Recovery Following Sprint Interval Exercise
试验速览
- 阶段
- 1 期
- 发起方
- 入组人数
- 15
- 试验地点
- 2
- 主要终点
- Change from baseline in Muscular Power
研究概览
简要总结
BioSteel Sports Drink (BSD), a proprietary blend of branched chain amino acids, taurine, and B vitamins, has increased its popularity among professional and amateur athletes. BioSteel claims that BSD attenuates muscular and mental fatigue, and enhances recovery when consumed before and during intense exercise. To date, the efficacy of BSD on attenuating muscular and mental fatigue, and enhancing recovery during repeated bouts of intense exercise is unknown. In a blind crossover study, participants will be subjected to sprint interval exercise followed by muscular and cognitive function testing under two conditions: BSD and isoenergetic control.
详细描述
This study is expected to start in January 2014 and be completed by December 2014.
Ten exercise trained male athletes (18-35 years) will complete a repeated testing protocol under 2 experimental conditions in a systematically rotated blind crossover design: BSD and isoenergetic carbohydrate control, separated by 1 week. The testing protocol will consist of sprint interval exercise (4-repeated Wingate cycle tests, resistance at 10% body mass separated by 4 min recovery bouts, followed by 4 muscular fatigue and 2 cognitive function tests).
Approximately 1-2 weeks prior to testing, participants will complete two familiarization sessions in the laboratory. During the first session (~2h), participants will be asked to complete a physical activity readiness questionnaire and a participant information form for personal and familial health history to rule out any pathologies or health issues that may preclude them from participating in the present study. Additionally, their body composition will be determined via BodPod (air displacement chamber), and they will also be screened via 5 exercise tests used in National Hockey League Combine (150 lb bench press, 8 lb sitting medicine ball toss, standing long jump, vertical jump and maximal oxygen consumption test on a cycle ergometer). During the second session (~1h), they will familiarize themselves with the 2 cognitive tests. This testing is designed to eliminate any learning effect of repeat testing.
On test days (~5h), participants will arrive at the laboratory at ~0800h following a 12-h overnight fast, and with limited activity (drive/use of the elevator to get to the lab). Participants will be fed a standardized breakfast (7 kcal/kg body weight) and allowed 2 hours to digest prior to testing. Thirty minutes before exercise, participants will ingest either 500ml of BSD (0.18 calories/kg body weight) or an isoenergetic carbohydrate control of similar taste/appearance in a blind fashion. Participants will be given a 5-minute warm up, then complete a session of sprint interval exercise (4 repeated Wingate tests, separated by 4 minutes recovery). Following the exercise, 4 National Hockey League Combine tests will be completed to evaluate muscular fatigue (150 lb bench press, sitting medicine ball toss, standing long jump, and vertical jump), and 2 cognitive function tests. Participants will then receive a 15-minute non-exercise recovery where they will consume another 500ml of supplement (or placebo) and complete the testing protocol again. Ratings of perceived exertion (RPE) will be collected throughout the exercise and muscular fatigue tests.
Test day timeline:
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 盲法
- Double (Participant, Investigator)
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
- •Healthy, exercise-trained males aged 18-35 years. Participants can not have consumed BioSteel Sports Drink before. To ensure participants are highly trained, they must achieve the 2013 National Hockey League Combine average scores or better on 5 exercise tests (150 lb bench press, 8 lb sitting medicine ball toss, standing long jump, vertical jump and maximal oxygen consumption test on cycle ergometer). Women will be studied subsequently to asses andy gender differences.
排除标准
- •Have symptoms or take medication for respiratory, cardiovascular, metabolic, neuromuscular disease.
- •Been diagnosed with a cognitive impairment and/or learning disability
- •Injury limiting exercise ability
- •Use of any medications with side effects of dizziness, lack of motor control, or slowed reaction time
- •Use of any other dietary supplements (excluding protein powder)
- •History of concussion/head injuries
- •Have an excessive alcohol intake (>2 drinks/day)
结局指标
主要结局
Change from baseline in Muscular Power
时间窗: Baseline and following each trial (1 day).
Wingate test: Will be conducted using a cycle ergometer which electronically measures power (average, peak and decline). Resistance will be equal to 10% of subject body mass in kg.
次要结局
- Change from baseline in Executive Function via Modified Stroop Test(Baseline and after each trial (1 day).)
- Change from baseline in speed of processing via Trail Making Test Part B(Baseline and after each trial (1 day).)
- Change from baseline in subjective feeling of exertion via Rating of Perceived Exertion(Baseline and after each trial (1 day))
- Change from baseline in anaerobic muscular power via Sitting Medicine Ball Toss(Baseline and after each trial (1 day).)
- Change from baseline in anaerobic muscular power via Vertical Jump(Baseline and after each trial (1 day).)
- Change from baseline in muscular endurance via Bench Press(Baseline and after each trial (1 day).)
- Change from baseline in anaerobic muscular power via Standing Long Jump(Baseline and after each trial (1 day).)