Effects of the FIFA 11+ Exercise Program on Injury Incidence, Fear of Reinjury, and Physical Performance in Young Female Volleyball Players
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 发起方
- 入组人数
- 25
- 试验地点
- 1
- 主要终点
- Injury Incidence
研究概览
简要总结
This study aims to investigate the effects of an 8-week FIFA 11+ exercise program on wellness, rating of perceived exertion (RPE), dynamic balance, and single-leg functional performance in young female volleyball players, as well as to examine the relationships among these variables. The study will also evaluate the program's effects on injury incidence and fear of reinjury.
The study is original in applying the FIFA 11+, a well-established injury prevention program, to volleyball and evaluating its effects together with training-load parameters through a multidimensional approach. It is expected to contribute to the literature by proposing a comprehensive model for monitoring athletic performance and injury risk in young female volleyball players.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 年龄范围
- 14 Years 至 18 Years（Child, Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Female volleyball players aged 14-18 years
- •Regular participation in volleyball training for at least 1 year
- •Participation in training sessions at least 2 days per week
- •No history of a serious lower-extremity injury within the previous 6 months
- •Willingness to participate in the study and provision of written informed consent; for participants under 18 years of age, written parental or legal guardian consent will also be obtained
排除标准
- •History of an injury requiring surgery within the previous 6 months
- •Presence of acute pain or injury that prevents safe completion of the physical performance tests
- •Presence of a neurological disorder or systemic disease that may affect balance or physical performance
- •Inability to participate regularly in the FIFA 11+ exercise program
- •Development of an injury during the study period that prevents participation in the exercise program for more than 2 consecutive weeks
结局指标
主要结局
Injury Incidence
时间窗: During the 8-week pre-intervention control period and the 8-week FIFA 11+ intervention period
All sports-related injuries occurring during the 8-week pre-intervention control period and the 8-week FIFA 11+ exercise intervention period will be prospectively recorded. Injury incidence will be calculated as the number of new injuries occurring during each study period. The anatomical location, type, severity, mechanism, and time-loss associated with each injury will also be documented.
Re-Injury Anxiety Inventory Scores
时间窗: At the end of the 8-week pre-intervention control period and immediately after the 8-week FIFA 11+ intervention
Re-injury anxiety will be assessed using the Re-Injury Anxiety Inventory (RIAI). The inventory consists of two subscales: anxiety related to the rehabilitation process (RIAI-R) and anxiety related to returning to sport or competition (RIAI-RE). Each item is scored on a 4-point scale ranging from 0 ("Not at all") to 3 ("Very much"). The RIAI-R subscale includes 13 items, with total scores ranging from 0 to 39. The RIAI-RE subscale includes 15 items, with total scores ranging from 0 to 45. Higher scores indicate greater anxiety about sustaining another injury during rehabilitation or returning to sport. Subscale scores will be calculated separately according to the established scoring procedure, including reverse scoring of the relevant items.
Daily Wellness Score
时间窗: Daily throughout the 8-week pre-intervention control period and the 8-week FIFA 11+ intervention period
Athletes' daily wellness status will be assessed using a wellness questionnaire based on the Hooper Index. The questionnaire evaluates five parameters: sleep quality, fatigue, muscle soreness, stress, and mood. Each parameter will be self-rated on a scale from 1 to 10. Individual parameter scores and the total wellness score will be recorded to monitor athletes' daily physical and psychological status. Higher scores will be interpreted according to the direction of the scoring system specified in the study protocol.
Single-Leg Hop for Distance Test
时间窗: At the end of the 8-week pre-intervention control period and immediately after the 8-week FIFA 11+ intervention
Lower-extremity functional performance will be assessed using the Single-Leg Hop for Distance Test. The athlete will stand on the test limb and perform a maximal forward hop, aiming to cover the greatest possible distance while landing on the same limb and maintaining balance. The distance from the starting line to the point of heel contact at landing will be measured in centimeters. Three valid trials will be performed for each limb, and the longest distance will be recorded. A trial will be considered invalid if the athlete loses balance, touches the ground with the opposite foot, or takes an additional step after landing. Higher values indicate better functional performance.
Vertical Jump Height
时间窗: At the end of the 8-week pre-intervention control period and immediately after the 8-week FIFA 11+ intervention
Lower-extremity explosive power will be assessed using the Vertical Jump Test. First, the athlete's maximal standing reach height will be measured while standing upright and reaching overhead with the dominant hand. The athlete will then perform a maximal vertical jump from a standardized starting position with knee flexion and touch the highest possible point. Vertical jump height will be calculated as the difference between the maximal jump reach height and the standing reach height. Three valid trials will be performed, with adequate rest between trials, and the highest jump height will be recorded in centimeters. Higher values indicate greater lower-extremity explosive power.
次要结局
- Session Rating of Perceived Exertion and Internal Training Load(After each training session throughout the 8-week pre-intervention control period and the 8-week FIFA 11+ intervention period)
- Training Session Duration(Recorded during each training session throughout the 8-week pre-intervention control period and the 8-week FIFA 11+ intervention period)
- Y-Balance Test Composite and Directional Reach Scores(At the end of the 8-week pre-intervention control period and immediately after the 8-week FIFA 11+ intervention)
研究者
Nuray Alaca
Assoc. Prof
Acibadem University