The Effects of Proprioceptive Neuromuscular Facilitation Stretching Exercises on Anaerobic Power and Motor Performance in Adolescent Male Volleyball Players: A Randomized Controlled Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 18
- 试验地点
- 1
- 主要终点
- Upper Body Endurance (Push-Up Test)
研究概览
简要总结
This randomized controlled study aimed to examine the effects of proprioceptive neuromuscular facilitation (PNF) stretching exercises on anaerobic power and motor performance in adolescent male volleyball players. Eighteen participants aged 15 to 17 years were randomly assigned to an experimental group and a control group. The experimental group performed PNF stretching exercises three times per week for six weeks, in addition to their regular volleyball training. The control group continued their standard volleyball training without PNF stretching. Outcome measures included anaerobic power, flexibility, balance, speed, push-up, and crunch tests. The study hypothesizes that PNF stretching will improve motor performance indicators in adolescent athletes.
详细描述
This clinical trial investigates the effects of a six-week proprioceptive neuromuscular facilitation (PNF) stretching intervention on motor performance in adolescent male volleyball players. A total of 18 participants with at least 6 months of volleyball training experience were randomly divided into two groups: the experimental group (n=9) and the control group (n=9). The experimental group received PNF stretching exercises in addition to their routine training three times per week for six weeks, while the control group continued only with their routine training.
The main outcome measures were anaerobic power (Margaria-Kalamen Test), flexibility (Sit-and-Reach Test), balance (Flamingo Balance Test), speed (20 m sprint), upper body strength (Push-up Test), and core strength (Crunch Test). Pre- and post-test evaluations were conducted. This study contributes to the growing body of literature on flexibility and functional performance development in adolescent athletes and aims to support evidence-based training practices in sports sciences.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- Single (Outcomes Assessor)
盲法说明
The assessor responsible for outcome measurements was blinded to group allocation.
入排标准
- 年龄范围
- 15 Years 至 17 Years（Child）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Male participants
- •Aged between 15 and 17 years
- •At least 2 years of volleyball training experience
- •Voluntarily agreeing to participate in the study
- •No recent musculoskeletal injuries (in the last 6 months)
排除标准
- •Participants with any diagnosed neurological or cardiovascular disorder
- •Current use of performance-enhancing drugs or supplements
- •History of lower extremity surgery
- •Inability to complete the training or testing sessions
- •Failure to provide written informed consent
研究组 & 干预措施
PNF Stretching Group
Participants in this group performed proprioceptive neuromuscular facilitation (PNF) stretching exercises three times per week for six weeks, in addition to their regular volleyball training.
干预措施: PNF Stretching Exercise (Behavioral)
Control Group
Participants in this group continued with their regular volleyball training without any additional intervention.
结局指标
主要结局
Upper Body Endurance (Push-Up Test)
时间窗: Baseline and after 6-week intervention
Upper body muscular endurance will be evaluated by counting the number of push-ups performed within 30 seconds.
Hamstring Flexibility (Sit-and-Reach Test)
时间窗: Baseline and after 6-week intervention
Hamstring flexibility will be measured with the Sit-and-Reach test. Participants sit on the floor with legs extended and reach forward. The distance reached is recorded in centimeters.
Static Balance Performance
时间窗: Baseline and after 6-week intervention
Static balance will be measured by having participants stand on one leg for a defined duration without support. Performance will be evaluated based on duration of balance and postural stability.
Sprint Performance (20-m Sprint Test)
时间窗: Baseline and after 6-week intervention
Speed performance will be measured using the 20-meter sprint test. Participants will run 20 meters at maximal effort, and the time taken will be recorded in seconds.
Core Endurance (Crunch Test)
时间窗: Baseline and after 6-week intervention
Core endurance will be assessed by counting the number of crunches a participant can perform in 30 seconds.
Anaerobic Power (Margaria-Kalamen Test)
时间窗: Baseline and after 6-week intervention
Anaerobic power will be evaluated using the Margaria-Kalamen test, which measures power output based on the time taken to run up a staircase. The test will be conducted at baseline and after 6 weeks.
次要结局
未报告次要终点
研究者
Zarife Pancar
Associate Professor
University of Gaziantep