Changes of Biomechanical Parameters During Race Simulation Rowing - The Effect of (In)Stability of the Simulator
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 11
- 主要终点
- Rowing performance
研究概览
简要总结
Rowing simulators are frequently used by rowers, when on-water training is impossible or limited. While such devices are highly valuable to maintain rowers' fitness, a concern was raised about extensive simulator usage. It was postulated that it could lead to technique alterations due to different biomechanical properties compared to on-water rowing. Slide-based rowing simulators were designed to better simulate on-water conditions.
The main aim of the study was to compare the differences in various kinematic and kinetic parameters during a short (20 s) all-out rowing bout and during a 2000-m simulated race, to get a better insight into how different rowing simulator designs affect biomechanics of rowing.
Three different rowing simulators were used in this study: (1) a standard stable/fixed rowing simulator, (2) a slides based rowing simulator, i.e. horizontal plane unstable, and (3) a tilt board based rowing simulator; i.e. frontal plane unstable.
The investigators hypothesised that rowing on different simulators will elicit different biomechanics, including forces, power output, arm and seat movement velocity and amplitude.
Each of the participants completed the tests in all three interventions on separate sessions; random order of interventions. The three sessions took place 7-10 days apart. During each session, the participants completed the all-out 20-s trial first, then the simulated 2000-m race. The aforementioned biomechanical parameters were tracked throughout the trials to be compared between interventions later.
详细描述
The measurements will take place at University of Primorska (Koper, Slovenia) and the subjects will be recruited in close collaboration with Rowing Club Piran. Crossover study design will be used. Each participant will be asked to come for three visits that will be scheduled 7-10 days apart. Prior to measurements onset, the whole protocol will be explained to the participant.
Measurement procedure:
- 15-min warm-up
- 20-s maximal (all-out) rowing
- 5-minute break
- 2000-m simulated race
After both trials, blood lactate will be measured. Blood sample will be taken at the the earlobe by a qualified medical personnel.
Maximal performance test: The participant will perform a 20-s interval with maximal effort. The main aim of the measurement is to record the maximal exerted force and power. The custom adapted device (Concept 2 Rowing Simulator) records the positions (seat and handle) and force (legs push and handle pull), which enables for further calculations of segmental and common kinematics and dynamics parameters.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Basic Science
- 盲法
- None
盲法说明
The investigator who processed the acquired data was blinded for rowing interventions and subject information.
入排标准
- 年龄范围
- 15 Years 至 30 Years（Child, Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Competitive rowers with at least 4 years of experience
- •Completed the physical examination at sports physician
- •Parental consent for underage participants
排除标准
- •Injury in last 12 months
- •Any health issues that may be exacerbated by interventions
研究组 & 干预措施
Experimental group
A group of rowers to be administered to intervention on a Stable rowing simulator, a Slides based rowing simulator or a Tilt board based rowing simulator.
干预措施: Stable rowing simulator (Device)
Experimental group
A group of rowers to be administered to intervention on a Stable rowing simulator, a Slides based rowing simulator or a Tilt board based rowing simulator.
干预措施: Slides based rowing simulator (Device)
Experimental group
A group of rowers to be administered to intervention on a Stable rowing simulator, a Slides based rowing simulator or a Tilt board based rowing simulator.
干预措施: Tilt board based rowing simulator (Device)
结局指标
主要结局
Rowing performance
时间窗: Three sessions, with randomized order of ergometers (7-10 days apart)
Rowing biomechanics on different rowing simulators.
次要结局
- Arm velocity(At the onset of test, at the finish and at the three points in between (at 500, 1000 and 1500 meters of the simulated race) - ref. POM: sessions 7-10 days apart.)
- Seat velocity(At the onset of test, at the finish and at the three points in between (at 500, 1000 and 1500 meters of the simulated race) - ref. POM: sessions 7-10 days apart.)
- Handle amplitude(At the onset of test, at the finish and at the three points in between (at 500, 1000 and 1500 meters of the simulated race) - ref. POM: sessions 7-10 days apart.)
- Lactate(Before and immediately after the test, ref. POM: sessions 7-10 days apart. .)
- Seat amplitude(At the onset of test, at the finish and at the three points in between (at 500, 1000 and 1500 meters of the simulated race) - ref. POM: sessions 7-10 days apart.)
- Arm force(At the onset of test, at the finish and at the three points in between (at 500, 1000 and 1500 meters of the simulated race) - ref. POM: sessions 7-10 days apart.)
- Leg force(At the onset of test, at the finish and at the three points in between (at 500, 1000 and 1500 meters of the simulated race) - ref. POM: sessions 7-10 days apart.)
研究者
Nejc Sarabon
Assoc. Prof. Dr. Sc.
University of Primorska