The Effect of Recovery Training on Lower Extremity Explosive Strength in Tennis Players
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 28
- 试验地点
- 1
- 主要终点
- Countermovement Jump Height
研究概览
简要总结
This study was designed to examine the effects of recovery training on lower extremity explosive strength performance in tennis players. Recovery methods are known to play an important role in reducing muscle fatigue, accelerating the recovery process, and decreasing the risk of injury among athletes. However, the effects of recovery training on lower extremity explosive strength in tennis players have not been sufficiently investigated in the literature.
This study will be conducted as a randomized controlled experimental design. Volunteer athletes aged 11-17 who regularly play tennis will be included in the study. Participants will be randomly divided into two groups: the control group will continue only their regular tennis training, while the experimental group will receive additional recovery training along with their routine tennis sessions. Lower extremity explosive strength will be evaluated using the countermovement jump, squat jump, reactive strength index (RSI), standing long jump, single-leg hop, and single-leg vertical jump tests. Measurements will be performed before and after the six-week training period.
The findings obtained from this research will scientifically reveal the contribution of recovery training to performance improvement in tennis players and provide evidence-based insights for optimizing athlete health and training program design.
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
- Triple (Participant, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 11 Years 至 18 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Must be 11-18 years old and have been playing tennis for the past year.
- •Must be cooperative.
- •Must have participated in regular tennis training for at least 2 years.
- •Must have no history of acute lower extremity injury before the study.
- •Must be voluntary and have signed an informed consent form from the athlete and/or their parent.
排除标准
- •Having a history of acute injury, fracture, surgery, or chronic musculoskeletal problems affecting the lower extremity
- •Having a neurological or cardiovascular disease
- •Having taken a break from sports due to a serious lower extremity injury within the last 6 months
研究组 & 干预措施
Control Group
Participants in this group will continue their regular tennis training
Recovery Training Group
Participants in this group will continue their regular tennis training and additionally perform recovery training twice a week for four weeks. The recovery sessions include stretching, foam rolling, and relaxation exercises designed to enhance recovery and improve lower extremity explosive strength.
干预措施: Recovery Training Group (Other)
结局指标
主要结局
Countermovement Jump Height
时间窗: 4 weeks
The countermovement jump (CMJ) test was used to assess lower extremity explosive performance. Participants started from an upright standing position with hands placed on the hips. Following a rapid downward movement involving hip and knee flexion, participants immediately performed a maximal vertical jump. Jump height (cm) was recorded using \[measurement device - e.g., force plate / jump mat / Optojump system\]. The CMJ reflects the efficiency of the stretch-shortening cycle and is considered a reliable indicator of explosive lower limb performance.
Squat Jump Height
时间窗: 4 weeks
The squat jump (SJ) test was used to assess concentric lower extremity explosive performance. Participants started from a semi-squat position with approximately 90° of hip and knee flexion, with hands placed on the hips. After holding this position briefly to eliminate the contribution of elastic energy, participants performed a maximal vertical jump without a preparatory countermovement. Jump height (cm) was recorded using \[measurement device - e.g., force plate / jump mat / Optojump system\]. The SJ test allows direct evaluation of concentric muscle power of the lower limbs.
Reactive Strength Index
时间窗: 4weeks
RSI is a performance measure that reflects reactive strength and neuromuscular efficiency. It is typically assessed through a drop jump in which the participant steps off a platform, lands, and performs a quick rebound jump with minimal ground contact time. RSI is sensitive to the athlete's ability to rapidly switch from eccentric to concentric action, a capacity highly relevant to sports requiring explosive changes in direction, such as tennis .
Standing Long Jump
时间窗: 4 weeks
SLJ, also known as the broad jump, is a field-based test for assessing horizontal explosive strength of the lower extremities. The participant stands with feet shoulder-width apart, swings the arms, and jumps forward as far as possible. The landing distance, measured from the starting line to the heel mark, reflects the ability of the lower-limb muscles to generate forward propulsion .
Single-Leg Hop for Distance
时间窗: 4 weeks
SLH test evaluates unilateral lower-limb performance and limb symmetry. The participant stands on one leg, performs a maximal forward hop, and lands on the same leg while maintaining balance for at least two seconds. Distances are recorded for both legs, and comparisons provide valuable insights into side-to-side asymmetries, rehabilitation status, and injury risk.
Single-Leg Vertical Jump Height
时间窗: 4 weeks
The single-leg vertical jump (SLVJ) test was used to assess unilateral lower extremity explosive performance. Participants stood on one leg with hands placed on the hips, while the non-supporting leg was flexed and held stationary. From a stable standing position, participants performed a maximal vertical jump using the supporting leg only. Jump height (cm) was recorded separately for each limb using \[measurement device - e.g., force plate / jump mat / Optojump system\]. This test allows evaluation of unilateral vertical force production and identification of inter-limb asymmetries.is .
次要结局
未报告次要终点
研究者
alyildirim
PhD
Biruni University