A Volume-Matched Quasi-Experimental Trial Comparing Micro-Dosed and Traditional Plyometric Training on Speed and Explosive Abilities in Elite Under-19 Soccer Players During the Pre-Season
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 24
- 试验地点
- 1
- 主要终点
- Change in countermovement jump (CMJ) jump height
研究概览
简要总结
The goal of this clinical trial is to learn if a micro-dosed plyometric training program works as well as a traditional plyometric program for improving speed and explosive abilities in elite under-19 soccer players during the pre-season.
The main questions are:
- Does micro-dosed training improve explosive and speed abilites, such as jumping and sprinting, as much as traditional training?
- Does it improve reactivity and change-of-direction ability ?
Researchers will compare two groups:
- Traditional Training Group: 2 sessions per week, about 40 minutes each.
- Micro-dosed Group: 3-4 shorter sessions per week, about 20 minutes each. Both groups will complete the same total weekly training volume.
Participants will:
- Take part in an 8-week plyometric training program during pre-season.
- Complete performance tests (CM jump tests, a 30-meter sprint, and a 15-0-5 change-of-direction test, broad jump test, drop jump test) before and after 8-week plyometric intervention, .
This study will help coaches and players understand if shorter, more frequent plyometric training sessions can be a good alternative to traditional longer sessions when weekly training load is matched.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- None
盲法说明
Masking was not feasible due to the visible differences in training frequency and scheduling.
入排标准
- 年龄范围
- 17 Years 至 19 Years（Child, Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Active membership in a U19 elite soccer club during the intervention.
- •Medical fitness to participate in plyometric training and testing.
- •Attendance at ≥75% of training sessions.
- •Completion of all mandatory pre- and post-tests.
- •Previous experience with plyometric training and testing procedures.
排除标准
- •Medical limitations preventing safe participation in training or testing.
- •Attendance lower than 75% of scheduled intervention sessions.
- •Failure to complete mandatory baseline or follow-up testing.
- •Injury preventing completion of the intervention.
结局指标
主要结局
Change in countermovement jump (CMJ) jump height
时间窗: Baseline and after 8 weeks of intervention.
Change in vertical jump height (cm) measured with dual force plates during a countermovement jump, from baseline (pre-test) to post-intervention (8 weeks).
Change in Sprint Speed (30 m sprint test using 1080 Sprint system)
时间窗: Baseline and after 8 weeks of intervention.
Change in sprint velocity (m/s) and split times (0-5 m, 0-10 m, 0-30 m).
Change in Drop Jump Reactive Strength Index (RSI)
时间窗: Baseline and after 8 weeks.
Change in reactive strength index (jump height / ground contact time) measured during drop jump from 30 cm platform.
次要结局
- Change in Standing Broad Jump Distance (SBJ)(Baseline and after 8 weeks.)
- Change in Sprint Mechanics (1080 Sprint)(Baseline and after 8 weeks.)
- Change in Change-of-Direction Performance (15-0-5 test)(Baseline and after 8 weeks.)
研究者
Marián Škorik
PhD Candidate, Faculty of Sports Science and Health, Matej Bel University
Matej Bel University