Effects of Acute Fatigue on Neuromuscular Control and Performance Parameters in Professional Adolescent Basketball Players: A Sex-Based Subgroup Analysis
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 发起方
- 入组人数
- 40
- 试验地点
- 1
- 主要终点
- Dynamic Balance
研究概览
简要总结
The primary aim of this study is to investigate the effects of acute fatigue on neuromuscular control and performance parameters in professional adolescent basketball players and to determine the relationship between fatigue level and neuromuscular control variables. As a secondary aim, the study seeks to examine whether these effects differ according to sex.
The research hypotheses are as follows. The null hypothesis (H1-0) states that acute fatigue has no significant effect on neuromuscular control parameters in adolescent basketball players, including balance performance, landing mechanics, ground contact time, and asymmetry ratios. The alternative hypothesis (H1-1) proposes that acute fatigue has a significant effect on these neuromuscular control parameters.
The second null hypothesis (H2-0) states that the effects of acute fatigue on neuromuscular control parameters do not differ according to sex. The alternative hypothesis (H2-1) suggests that the effects of acute fatigue on neuromuscular control parameters differ according to sex.
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
入排标准
- 年龄范围
- 13 Years 至 18 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Aged between 13 and 18 years
- •Registered professional/club-level basketball player
- •Engaging in regular training at least 3 days per week
- •No history of lower extremity surgery or severe injury within the past 6 months
排除标准
- •Presence of congenital musculoskeletal anomalies or neurological disorders
- •Cardiovascular, respiratory, or metabolic conditions that prevent safe participation in the tests
- •Athletes involved in additional high-intensity performance programs beyond regular training
研究组 & 干预措施
Male athletes
干预措施: basketball practice (Other)
female athletes
干预措施: basketball practice (Other)
结局指标
主要结局
Dynamic Balance
时间窗: At baseline and immediately after the training
The Y-Balance Test (YBT) will be used to assess lower extremity dynamic balance, neuromuscular control, and functional stability. Participants balance on one leg while reaching as far as possible in the anterior, posteromedial, and posterolateral directions. A modified version of the YBT will be used due to the cost of the original platform, which has been shown to be reliable. Reach distances will be recorded in centimeters, normalized to lower extremity length, and a composite score (%) calculated: Composite Score (%) = \[(Anterior + Posteromedial + Posterolateral) / (3 × lower extremity length)\] × 100 Higher scores indicate better dynamic balance and neuromuscular control. Participant safety will be ensured with proper instructions, rest between trials, and termination of testing if pain or discomfort occurs. The YBT is non-invasive and safe.
Vertical jump
时间窗: Baseline and immediately after the training
The Countermovement Jump (CMJ) test will be used to assess lower extremity neuromuscular fatigue. The CMJ is a widely used, valid, and reliable performance test in sports science, designed to evaluate explosive force production of the lower limb muscles, the elastic properties of the muscle-tendon unit, and neuromuscular function . Participants perform a maximal vertical jump from a standing position following a rapid eccentric knee and hip flexion. This test is particularly relevant in basketball due to its high ecological validity for jump and landing movements. During the CMJ, jump height and the flight time to contact time ratio (FT:CT) will be calculated. The FT:CT ratio is an indirect indicator of neuromuscular efficiency and fatigue, with literature showing a decrease as fatigue increases. Each participant will perform three trials, with 1-minute rest between trials, and the best performance will be used for analysis. The test will be terminated if any pain, discomfort, or risk
次要结局
未报告次要终点
研究者
Berivan Beril Kılıç
Asistant professor
Biruni University