Short Term Effects of Proprioceptive Neuromuscular Facilitation Combined With Neuromuscular Electrical Stimulation in Young Basketball Players: a Randomized Clinical Trial.
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 44
- 试验地点
- 2
- 主要终点
- The Popliteal Angle Test
研究概览
简要总结
Hamstring muscle injuries are common in basketball and result in long periods of inactivity. This study aims to compare two different stretching programs to assess their effects on hamstring flexibility and, secondarily, on jumping ability in young basketball players. One program uses a special stretching technique called proprioceptive neuromuscular facilitation (PNF), while the other uses the same stretching but adds electrical stimulation (NMES).
详细描述
Hamstring strains are increasingly common in sports, particularly in football and professional basketball, where they are the fourth most frequent injury. Stretching, especially when combined with techniques like proprioceptive neuromuscular facilitation (PNF), is a key method used to reduce the risk of these injuries. PNF, which involves alternating stretches with muscle contractions, is widely regarded for improving muscle flexibility. Recently, stretching combined with neuromuscular electrical stimulation (NMES) has also shown promise for increasing flexibility. A variant of PNF called contract-relax PNF (crPNF) has been proposed, where NMES is applied during the contraction phase to further enhance flexibility gains. However, there are no studies on the short-term effects of crPNF and crPNF + NMES in young male basketball players, a group known for higher degrees of hamstring shortening.
This study aims to compare the short-term effects of crPNF and crPNF + NMES on hamstring flexibility in young male basketball players and assess whether one technique is superior to the other. A secondary goal is to determine if either stretching protocol negatively impacts vertical jump ability, an important skill in basketball.
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)
入排标准
- 年龄范围
- 11 Years 至 18 Years（Child, Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Active basketball players who train at least 3 days a week
- •Ages between 11 and 18 years
- •Male gender
排除标准
- •Participation in an organized hamstring stretching program
- •Presence of low back pain
- •Hamstring muscle injuries in the last 6 months
- •Spinal or abdominal surgeries in the last 6 months
结局指标
主要结局
The Popliteal Angle Test
时间窗: Before and inmediately after the intervention
The Popliteal Angle Test is validated for measuring hamstring extensibility. Participants are placed in the supine position. A researcher holds the hip at a 90° flexion and passively extends the knee until the participant feels a strong stretch without pain. The examiner records the knee extension degrees at that moment using an inclinometer. The test is repeated three times, and the average is obtained. A full knee extension corresponds to a value of 0 degrees, and a higher number of degrees indicates greater hamstring shortening.
The Sit & Reach Test
时间窗: Before and inmediately after the intervention
The Sit \& Reach Test has high intra-examiner reliability and is validated for measuring hamstring extensibility. For its execution, participants are placed in a long sitting position with the soles of their feet against the base of the measurement box. Keeping their knees extended, they reach for the maximum possible distance in the box with their fingers. The test is repeated three times, and the average is obtained. Values are recorded in centimeters, where a greater distance indicates a higher degree of hamstring extensibility.
次要结局
- The Counter Movement Jump(Before and inmediately after the intervention)
研究者
Juan F. Lisón Párraga, Dr
Professor
Cardenal Herrera University