Effect of Neurodynamic Tensioning Added to a Grip Strengthening Program on Hand Grip Strength: A Randomized Controlled Trial
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 发起方
- 入组人数
- 60
- 主要终点
- Change in Hand Grip Strength
研究概览
简要总结
This randomized controlled trial will investigate whether adding neurodynamic tensioning to a grip strengthening program provides additional improvements in hand grip strength in healthy adults. Sixty participants aged 18 to 40 years will be randomly assigned to two groups. Both groups will perform a standardized grip strengthening program for six weeks, three days per week. The experimental group will additionally receive neurodynamic tensioning exercises targeting the median and ulnar nerves. Hand grip strength will be assessed at baseline, week 3, and week 6. The study aims to determine whether neurodynamic tensioning provides additional benefit beyond grip strengthening alone.
详细描述
This study is designed as a prospective, two-arm, parallel-group randomized controlled trial investigating the additional effects of neurodynamic tensioning on hand grip strength in healthy adults. A total of 60 participants aged 18 to 40 years will be enrolled and randomly allocated in a 1:1 ratio to either a control group or an experimental group using computer-based block randomization.
Participants in both groups will perform a standardized grip strengthening program using an adjustable hand gripper for six weeks, three sessions per week. Each session will include three sets of 8-12 repetitions, with progressive resistance according to participant performance and perceived exertion.
In addition to the same grip strengthening program, participants in the experimental group will receive neurodynamic tensioning targeting the median and ulnar nerves. Neurodynamic techniques will be performed within pain-free limits using controlled tensioning movements. For each nerve, three sets of 10 repetitions will be performed before the grip strengthening exercises.
The primary outcome will be hand grip strength, measured using a Jamar hand dynamometer or an equivalent valid and reliable hand dynamometer. Grip strength will be assessed in standardized and different upper-extremity positions. Secondary outcomes will include pinch strength, manual dexterity, perceived exertion, intervention adherence, and adverse events.
Assessments will be performed at baseline (T0), week 3 (T1), and week 6 (T2). The outcome assessor will be blinded to group allocation. The main analysis will evaluate group, time, and group-by-time interaction effects to determine whether adding neurodynamic tensioning to grip strengthening results in greater improvement in hand grip strength than grip strengthening alone.
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 outcome assessor will be blinded to group allocation. Participants and the physiotherapist delivering the interventions cannot be blinded because of the nature of the interventions.
入排标准
- 年龄范围
- 18 Years 至 40 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Aged between 18 and 40 years.
- •Willing to participate voluntarily in the study.
- •No history of upper-extremity pain, injury, or surgery within the previous three months.
- •No diagnosed neurological, rheumatological, or systemic disease affecting the peripheral nervous system.
- •Sufficient cognitive ability to understand and follow the study protocol.
排除标准
- •History of carpal tunnel syndrome, cervical radiculopathy, peripheral neuropathy, or upper-extremity entrapment neuropathy.
- •History of upper-extremity fracture or surgery within the previous six months.
- •Regular participation in grip strengthening exercises or intensive upper-extremity resistance training.
- •Use of medication that may affect neuromuscular performance.
研究组 & 干预措施
Grip Strengthening Group
Participants will perform a standardized grip strengthening program using an adjustable hand gripper for six weeks, three sessions per week. Each session will consist of 3 sets of 8-12 repetitions. Resistance will be progressively adjusted according to performance and perceived exertion. No neurodynamic tensioning, neural gliding, or sham intervention will be applied to this group.
干预措施: Grip Strengthening Program (Other)
Neurodynamic Tensioning Plus Grip Strengthening Group
Participants will receive neurodynamic tensioning targeting the median and ulnar nerves in addition to the same standardized grip strengthening program. For each nerve, neurodynamic tensioning will be performed as 3 sets of 10 repetitions using controlled rhythmic tensioning within pain-free limits. The intervention will be performed for six weeks together with the grip strengthening program.
干预措施: Grip Strengthening Program (Other)
Neurodynamic Tensioning Plus Grip Strengthening Group
Participants will receive neurodynamic tensioning targeting the median and ulnar nerves in addition to the same standardized grip strengthening program. For each nerve, neurodynamic tensioning will be performed as 3 sets of 10 repetitions using controlled rhythmic tensioning within pain-free limits. The intervention will be performed for six weeks together with the grip strengthening program.
干预措施: Neurodynamic Tensioning (Other)
结局指标
主要结局
Change in Hand Grip Strength
时间窗: Baseline, Week 3, and Week 6
Hand grip strength of the dominant hand will be measured in kilograms (kg) using a Jamar hand dynamometer or an equivalent valid and reliable hand dynamometer. Measurements will be performed in three upper-extremity positions: standard seated position with the elbow at 90 degrees of flexion, elbow extension with the shoulder in a neutral position, and shoulder at 90 degrees of flexion with the elbow extended. Three trials will be performed in each position, and the mean of the three measurements will be used for analysis.
次要结局
- Change in Pinch Strength(Baseline, Week 3, and Week 6)
- Change in Manual Dexterity(Baseline, Week 3, and Week 6)
- Perceived Exertion During the Intervention(Baseline, Week 3, and Week 6)
研究者
Uğur Sözlü
associate professor
Tokat Gaziosmanpasa University