Effects of One Night's Acute Sleep Restrictions on Maximal Strength, Muscle Power, and Strength Endurance in Resistance-trained Women.
试验速览
- 阶段
- 不适用
- 发起方
- 入组人数
- 20
- 试验地点
- 2
- 主要终点
- Maximal strength bench press test
研究概览
简要总结
The study aims to see how acute sleep restriction will affect women resistance trainers. Above all, the investigators will be interested in observing the relationship between shorter sleep and athletic performance, as well as other important aspects, such as their level of motivation to exercise, how much pain participants felt during exercise and how demanding they found exercise. The investigators assume that differences in subjective measures (such as pain levels, motivation and mood) will be most apparent.
详细描述
Participants would take part in two identical experimental sessions under two sleep conditions:
with sleep restrictions (SR), where will experience acute sleep restriction the night before the test session (i.e., 3 h of early sleep restriction versus normal sleep); with the control condition (CON), where participants will follow their habitual sleep-wake routines.
Every session would separated by a 1-week interval. The average sleep duration (CON) is going to be estimated by using actigraphy Motionwatch 8 for 5 days (from Monday to Friday).
Female athletes will receive accelerometers one day before experimental sessions. Participants will be asked to wear them on their non-dominant wrists from 8 p.m. to the next morning (experimental sessions day).
The participants would complete the morning session with a battery of physical tests, measuring several components of specific physical performance capacity and cognitive function.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Diagnostic
- 盲法
- Single (Care Provider)
入排标准
- 年龄范围
- 18 Years 至 30 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •a minimum of 3 years of training experience;
- •practicing physical activity for the last 6 months at least 3 times per week for 2h
- •current medical qualification for competitive sport
排除标准
- •diseases that can have a bad influence on the menstrual cycle (e.g. polycystic ovarian syndrome, endometriosis);
- •using hormonal contraception;
- •regularity of the menstrual cycle.
- •diagnosed cardiovascular, metabolic, gastrointestinal, or neurological diseases;
- •movement, neuromuscular or musculoskeletal disorders;
- •taking medications and supplements that may affect fitness test results;
- •taking supplements that may affect biochemical test results
- •sleep disorders
结局指标
主要结局
Maximal strength bench press test
时间窗: 1 day after night with or without intervention
The next day after a) sleep restriction b) normal sleep
Countermovement jump
时间窗: 1 day after night with or without intervention
Vertical jump test performed by having an athlete quickly squat to a self-selected depth and then jump as high as possible.
Muscle endurance test in bench press
时间窗: 1 day after night with or without intervention
muscle endurance test in the bench press exercise at 50% 1RM
Explosive bench press exercise
时间窗: 1 day after night with or without intervention
three sets of three repetitions of explosive bench press exercise at 50% of the load representing one-repetition maximum (1RM)
次要结局
- Stress and recovery (SRSS)(1 day after night with or without intervention)
- Motivation(1 day after night with or without intervention)
- Mood (POMS)(1 day after night with or without intervention)
- Readiness-to-train questionnaire (RTT-Q)(1 day after night with or without intervention)
- Pain (Pain scale)(1 day after night with or without intervention)
- Rating perceived exertion (RPE)(1 day after night with or without intervention)