A Randomized Controlled Trial Evaluating the Effect of Plyometric Training on Power, Speed, and Agility in Sport-active Boys With Different Biological Maturity
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 38
- 试验地点
- 2
- 主要终点
- Broad jump distance
研究概览
简要总结
This randomized controlled trial aims to assess the effectiveness of a 12-week plyometric training regimen on improving power, speed, and agility among boys aged 10 to 18 years who are actively engaged in sports and exhibit differing levels of biological maturity. The study seeks to determine how maturation affects the responsiveness to the training program, potentially influencing future sports training approaches for young athletes.
详细描述
The main objective of this project is to assess the impact of a plyometric program on power, speed, agility, reactive strength index and stiffness in male athletes of different levels of maturation. The study takes the form of a short-term experiment (12 weeks), involving 30 young athletes with a minimum of two years of experience in systematic sports training. Participants are divided into an experimental group and a control group. The experimental group undergoes a 12-week plyometric training program, implemented twice a week within training sessions immediately following warm-ups. The control group engages in technical-tactical exercises. The program is developed by the authors of the research project based on current knowledge and requirements for creating an effective and safe plyometric program. Randomization is performed using a computer random generator. Participants undergo two testing sessions: one prior to the training intervention and the other one week after its completion. Age, height, weight, and body composition are measured using a personal scale with an integrated stadiometer. Tests include a 30-m sprint, countermovement jump, broad jump, unilateral triple jump, drop jump (reactive strength index), 20 submaximal vertical jumps (lower limb stiffness), BlazePod reaction test, and 505 agility test. The maturity status of the participants is evaluated using the Mirwald method and is used as a covariate in the subsequent statistical analysis. Findings of this research may provide crucial insights for targeted integration of plyometric methods during the developmental and maturation phases of young athletes.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 10 Years 至 18 Years（Child, Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Minimum of 2 years of organized sports participation.
- •Good health as confirmed by a pre-study medical screening.
- •Signed informed consent from the legal representative and verbal assent from the participant.
排除标准
- •Any serious lower limb injury in the past 6 months.
- •Any current or historical mental health disorders.
- •Any condition deemed by the medical screener as a contraindication to vigorous physical activity.
研究组 & 干预措施
Plyometric training
Plyometric training program for 12 weeks.
干预措施: Plyometric training (Other)
Control training
Regular training program for 12 weeks.
干预措施: Control training (Other)
结局指标
主要结局
Broad jump distance
时间窗: 12 weeks
The distance in the broad jump is measured with a tape. Participants stand on a pre-marked line with legs approximately shoulder-width apart. From standing, they jump as far forward as possible using a countermovement and land on both feet. The landing spot closest to the starting line is considered for scoring. Participants perform two attempts, with the better attempt being recorded. There is a 1-min rest between attempts.
Unilateral triple jump length
时间窗: 12 weeks
The length of the unilateral triple jump test is measured with a tape. Participants start on one leg on a pre-marked line. Then using a countermovement from knee flexion, they perform a triple jump with the dominant and subsequently the non-dominant lower limb. After the final jump, they must land on both limbs and maintain their position at the landing spot for at least 2 seconds.
Vertical jump height
时间窗: 12 weeks
The vertical jump is performed on AMTI OR6-7-1000 force platform (Advanced Mechanical Technology, Watertown, USA). Participants stand on the force platform in an upright position and on command, perform a maximum height jump with a countermovement and use of arms. Participants perform three attempts, with a 1-min rest between each. The best attempt is evaluated.
次要结局
- Linear speed(12 weeks)
- Agility test(12 weeks)
- Lower limb stiffness(12 weeks)
- Reactive strength index(12 weeks)
- Reaction test(12 weeks)
研究者
Jakub Krejci
Assistant professor
Palacky University