Functional and Performance Effects of a 4-week Weightlifting Program in Highly Trained Adolescent Basketball Athletes
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 46
- 试验地点
- 2
- 主要终点
- Change from baseline Repetition Maximum at 5 weeks
研究概览
简要总结
Weightlifting is an increasingly used intervention in the sport field to improve both function and performance outcomes. However, the effects in a pediatric and adolescent population are not well described, and require further research to elucidate the benefits and potential adverse effects compared to other strength training methods, such as plyometric training.
详细描述
Highly trained male and female adolescent basketball athletes aged 12-16 years will be recruited for the study. Participants will be randomly assigned to a 4-week program (12 sessions) of weightlifting or plyometric training. The training programs will be identical in sets and repetitions, progressively evolving each week towards fewer sets and fewer repetitions. The training intensity will be the same in both groups, calculated from the RM, starting at 70% in the first week and progressing by 5% each week until a final intensity of 85% in the last week. Therefore, both interventions evolve towards sessions with fewer sets and repetitions and higher loads.
The weightlifting intervention refers to the performance of highly technical and explosive multi-joint strength exercises. The program consists of six basic weightlifting maneuvers (hang power clean, overhead squat, hang power snatch, clean, split jerk, snatch), two of which are performed in each of the three weekly sessions. The order of execution of the exercises in the weekly sessions is always the same. To ensure the correct execution of the maneuvers, before starting the intervention, a brief familiarization program will be carried out. This consists of an explanation of the exercises by the research staff and practice by the participants with simultaneous correction.
The plyometric program follows the same structure, consisting in a total of 6 exercises (Max countermovement jump, double leg side jump, maximum squat jump, dropjump (20cm), single leg hurdle jump, doble leg multi hop) performed in groups of 2 for each weekly training session.
The design of the intervention program is based on previously published related articles.Training sessions will be supervised by a member of the research team with expertise in strength and conditioning in basketball athletes.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single (Outcomes Assessor)
盲法说明
Outcomes assessor is blinded to participants group allocation
入排标准
- 年龄范围
- 12 Years 至 16 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Healthy highly-trained basketball athletes
排除标准
- •Current injury or complaining limiting sports activity
- •No histoy of injury receiving non-operative treatment in the last 3 months
- •No history of injury receiving operative treatment in the last 9 months
- •Subjects who have previously carried out weightlifting training for at least 4 weeks of duration.
- •Subjects physically unable to perform a strength training program
结局指标
主要结局
Change from baseline Repetition Maximum at 5 weeks
时间窗: (I) Baseline: previous week before starting intervention, and (II) 5 weeks after baseline
It refeers to the maximum weight that an athlete can lift correctly in one repetition. The maximum weight lifted is recorded in kg.
Change from baseline Hand Grip at 5 weeks
时间窗: (I) Baseline: previous week before starting intervention, and (II) 5 weeks after baseline
Measured with validated dynamometer equipment, it register the isometric strength that an athlethe perform in a hand grip contraction. Strength is recorded in kg. Three valid measures will be recorded and the mean value will be calculated.
Change from baseline Lower-limb muscle strength at 5 weeks
时间窗: I) Baseline: previous week before starting intervention, and (II) 5 weeks after baseline
Force Frame system equipment will be used to assess the isometric strength for lower-limb (hip and knee) muscles. Strength values will be expressed in kg. Three valid measures will be recorded and the mean value will be calculated.
次要结局
- Change from baseline Hop test distance at 5 weeks((I) Baseline: previous week before starting intervention, and (II) 5 weeks after baseline)
- Weight(Baseline)
- Change from baseline 20 meters Sprint at 5 weeks((I) Baseline: previous week before starting intervention, and (II) 5 weeks after baseline)
- Change from baseline Ankle Mobility at 5 weeks((I) Baseline: previous week before starting intervention, and (II) 5 weeks after baseline)
- Height(Baseline)
- Change from baseline Counter movement jump (CMJ) test at 5 weeks((I) Baseline: previous week before starting intervention, and (II) 5 weeks after baseline)
研究者
Fernando Domínguez-Navarro
Clinical Professor
University of Valencia