Efficiency of Plyometric Work Together With the Use of Ballast Weight in Lower Limbs in the Improvement of Performance in Jumpers From 18 to 40 Years Old. Nonrandomized Pilot Study.
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 20
- 试验地点
- 1
- 主要终点
- Change from baseline jump height after intervenion and at month
研究概览
简要总结
Introduction. The high jump is a discipline that use the shortening-stretching cycle. Plyometric exersices emply an eccentric load followed by concentric contraction. Powerinstep is a tool training by means of weigthed weigth whose objective is improving performance in athletes.
Aim. Evaluate efficacy of plyometric training with Powerinstep® in lower limbs, in the performance improvement in professional height jumpers from 18 to 40 years old.
Study design. Non-randomized clinical trial, single bind, with follow-up period.
Methods. 20 athletes will be recruited, that will be randomized to the two study groups: experimental (they carry out a plyometric training programme with Powerinstep) and control (won't be made a intervention on the subjects included in this group). The intervention consists of 6 week, with 2 session for week of 15 minutes duration each. The dependent variables will be the height of the jump, the time of flight, the reaction speed and the impulse force, measures though a pressure platform (model T-PLATE), employing Countermovement Jump, Abalakov and Drop Jump tests. We will make a descriptive statistical analysis. The Shapiro-Wilk statistical test will be used to calculate normality. Trough t-student test of repeated measures and an ANOVA of repeated measures will be calculated the difference between distinct assessment (preintervention, postintervention and follow-up) and the effect intra and inter subject, respectively.
Expected results. We want to observe the changes in performance improvement in height jumpers.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 40 Years（Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Height jumpers
- •Age between 18 and 40 years
- •Currently participate in the competitive field
排除标准
- •Present medical diagnosis of musculoskeletal pathology
- •Who have not had musculoskeletal injuries in the last month
- •Not signed the informed consent document.
研究组 & 干预措施
Experimental
Five Plyometric exercises
干预措施: Plyometric exercises (Other)
Control
Subjects included in the control group will not receive any intervention
结局指标
主要结局
Change from baseline jump height after intervenion and at month
时间窗: Screening visit, within the first seven days after treatment and after one month follow-up visit
The height of the jump will be measured on the Countermovement Jump test. The evaluating physiotherapist will stand in front of the subject, who will start from an upright position with the arms on both hips, and will go to a position of flexion of lower members at 90º. Finally, we will ask the subject for a vertical jump on the pressure platform. The results of this test are measured in centimeters and the higher the score, the greater the vertical jump capacity.
次要结局
- Change from baseline impulse force after intervention and at month(Screening visit, within the first seven days after treatment and after one month follow-up visit)
- Change from baseline vertical jump after intervention and at month(Screening visit, within the first seven days after treatment and after one month follow-up visit)