Exercise Sprint Snacks: The Effects of Prolonged Rest, Reduced Exertion High-intensity Interval Training (PR-REHIIT) Compared to Standard Reduced Exertion High-intensity Interval Training (REHIIT).
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 33
- 试验地点
- 2
- 主要终点
- Change in VO2max
研究概览
简要总结
An adapted sprint interval training protocol involving 2-3 repeated 20-second sprints separated by 2-3 minutes rest (termed reduced exertion high- intensity interval training (REHIIT)) has been developed and has been shown to promote fitness benefits. This data shows how little exercise one may need to improve cardiorespiratory fitness, provided they are willing to work very hard. However, it is unknown whether the benefits of REHIIT are because of the "all-out" nature of the sprint efforts themselves or the pattern of completing sprints with relatively short (i.e., minutes) rest periods within a workout session.
We are inquiring whether performing the same number and style of sprints with prolonged rest (i.e., 1-4 hours of rest in between sprints) is equally effective for improving aerobic fitness when compared to more traditional sprint interval training with 2-3 minutes of rest between sprints. Such information may make the effectiveness of sprint training more accessible and approachable for individuals unwilling or unable to plan a purposeful REHIIT exercise session into their day. If the rest interval could be prolonged then it may be possible to perform a few sprints as "exercise snacks" throughout the day without the need for a structured interval training session.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- None
盲法说明
Participants will know what exercise group they are assigned to.
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
- •Physically inactive (2 or less bouts of purposeful exercise per week)
排除标准
- •If your doctor has informed you that you have a heart condition and should only do physical activity recommended by a doctor.
- •If you feel pain in your chest when you perform any physical activity.
- •If in the past the month you have had chest pain when you were not doing any physical activity.
- •If you lose your balance or consciousness because of dizziness.
- •If you have bone or joint problem (for example, back, knee, or hip) that could be made worse by a change in your physical activity.
- •If you are currently pregnant or planning on becoming pregnant in the next 6 weeks.
- •You have previously had a heart attack or stroke
- •You are currently engaging in high-intensity interval training.
- •You are currently physically active (engaging in 3 or more bouts of purposeful exercise per week; a "bout" is defined as structured, planned exercise lasting at least 30 minutes)
- •You have severe chest pain or blood pressure over 240/140 during baseline testing.
- •You have exercise induced asthma or a history of syncope.
结局指标
主要结局
Change in VO2max
时间窗: Before and after the 6 week intervention
Maximal oxygen uptake assessed using a ramp increase protocol on a cycle ergometer.
次要结局
- Change in 10 km Time Trial Performance(Before and after the 6 week intervention)
研究者
Jonathan Little
Assistant Professor
University of British Columbia