Evaluation of Grip Strength and Reaction Time Following Induced Fatigue of the Wrist Flexors: The Acute Effects of Local Vibration
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 42
- 试验地点
- 1
- 主要终点
- Hand Grip Strength Measurement
研究概览
简要总结
This study aims to investigate the acute effects of local vibration applied after induced fatigue of the wrist flexor muscles on grip strength and upper extremity reaction time.
详细描述
This randomized controlled study will be conducted with a minimum of 42 participants who meet the inclusion and exclusion criteria. Participants will be randomly assigned to one of three groups: control, 50 Hz local vibration, or 100 Hz local vibration.
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
- Double (Participant, Investigator)
盲法说明
The evaluator and the researcher administering the plantar vibration intervention will be different. Patients will be blinded to their group assignment.
入排标准
- 年龄范围
- 18 Years 至 25 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Female individuals aged 18-25
排除标准
- •Having an open wound in the area where local vibration is applied
- •A history of previous or current upper extremity injury
- •Use of anti-inflammatory drugs
- •Having a diagnosis of epilepsy
研究组 & 干预措施
Sham Vibration Group
In this group, sham vibration will be administered following the muscle fatigue protocol. The vibration device will be activated but positioned close to the muscle without direct contact for a duration of 10 minutes. Participants will be told that they are receiving treatment with an electromagnetic vibration device.
干预措施: Sham Local Vibration (Other)
50 Hz Local Vibration Intervention Group
Participants in this group will receive 50 Hz local vibration following the muscle fatigue protocol. The local vibration will be applied along the flexor carpi ulnaris muscle for a duration of 10 minutes.
干预措施: 50 Hz Local Vibration (Other)
100 Hz Local Vibration Intervention Group
Participants in this group will receive 100 Hz local vibration following the muscle fatigue protocol. The local vibration will be applied along the flexor carpi ulnaris muscle for a duration of 10 minutes.
干预措施: 100 Hz Local Vibration (Other)
结局指标
主要结局
Hand Grip Strength Measurement
时间窗: Change in hand grip strength from baseline following intervention or rest
Grip strength will be assessed using a JAMAR® hydraulic hand dynamometer, which has five grip positions. The test will follow American Society of Hand Therapists guidelines, with the elbow at 90° flexion. Measurements will be taken on the dominant hand. Participants will sit with their head facing forward, shoulders slightly abducted (10-20°), elbows at 90°, and wrists and hands in a neutral position. Both upper extremities will remain relaxed, and feet will be flat on the floor. Fingers will be fully extended and adducted. Participants will be instructed not to allow their hands or forearms to touch the body. The dynamometer will be adjusted to fit the participant's hand size, typically set at the second handle position.
Upper Extremity Reaction Time Measurement
时间窗: Change in upper extremity reaction time from baseline following following intervention or rest
Upper extremity reaction times will be recorded using the BlazePod system (Play Coyotta Ltd., Tel Aviv, Israel). Participants will begin the reaction time test while seated, with both hands placed on a table, palms facing downward, and elbows flexed at 90°, with hands positioned 40 cm apart. The BlazePod unit will be placed centrally, approximately 20 cm away from each hand. When the BlazePod lights up, participants will be instructed to respond as quickly as possible by tapping the light to turn it off. As the lights will activate randomly, participants will be required to react unpredictably and respond accordingly each time the light appears. The total test duration will be recorded at the end of the trial.
次要结局
未报告次要终点
研究者
Omer Dursun
Asst. Prof.
Bitlis Eren University