Comparative Effects of Post-Isometric Relaxation and Reciprocal Inhibition Techniques inPiriformis Syndrome
2026年6月8日 更新者：Riphah International University
Comparative Effects of Post-Isometric Relaxation and Reciprocal Inhibition Muscle Energy Techniques on Pain, ROM and Function in Piriformis Syndrome
Piriformis Syndrome (PS) is a condition which is characterized by pain, numbness, and limited range of motion (ROM) due to compression or irritation of the sciatic nerve by the piriformis muscle.
It often leads to discomfort in the buttock region, radiating pain along the posterior thigh, and functional limitations in daily activities.
Manual therapy techniques, particularly Muscle Energy Techniques (METs), have been widely used for the management of musculoskeletal dysfunctions, including piriformis syndrome.
研究概览
地位
尚未招聘
条件
详细说明
This study will highlight the clinical relevance of METs in piriformis syndrome management and supports the integration of these techniques into routine physiotherapy practice to optimize patient outcomes.This study will be a randomized controlled trial involving -- patients diagnosed with piriformis syndrome.
40 participants will be randomly assigned into two groups.
Both groups will receive conservative treatment, including a 10-15minutes cold pack and TENS and 5 minutes of ultrasound therapy application along with stretching (gluets and hamstrings) and strengthening exercises of core and hip stabilizers (gluteus medius, gluteus maximus).
Group A will receive an additional 10-minute session of post isometrics relaxation technique of muscle inhibition techniques (METs).
In contrast, Group B will receive reciprocal inhibition techniques of muscle energy techniques (METs) for 10 minutes.
The intervention will be administered daily for four weeks.
Pain intensity, ROM, and functional disability will be measured at baseline and post-intervention using standardized assessment tools
研究类型
介入性
注册 (估计的)
42
阶段
- 不适用
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习联系方式
- 姓名：Imran Amjad
- 电话号码：03324390125
- 邮箱：Imran.amjad@riphah.edu.pk
学习地点
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Punjab Province
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Lahore、Punjab Province、巴基斯坦、54000
- Ghurki Hospital Lahore
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接触：
- Hira Shaukat, TDPT
- 电话号码：03360405480
- 邮箱：hira.shaukat@riphah.edu.pk
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首席研究员：
- Hafiza Mahnoor Anwar, MSOMPT
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参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
- 成人
接受健康志愿者
不
描述
Inclusion Criteria:
- Piriformis syndrome clinically confirmed via special tests (e.g., FAIR test, Freiberg sign, Pace test)
- Both gender male and female.
- Age between 25 and 40 years.
- Presence of antalgic gait due to pain.
- Moderate to severe pain (e.g., NPRS score ≥ 4)
- Voluntary consent to participate in the study.
- Medically stable, no acute or unstable medical conditions that would interfere with participation.
Exclusion Criteria:
Lumber disc herniation or radiculopathy confirmed by imaging or neurological signs
- History of hip or pelvis surgery.
- Other neuromuscular or musculoskeletal disorders e.g., stroke, multiple sclerosis, or rheumatoid arthritis
- Recent lower limb fracture or injury within the last 6 months.
- Pregnancy due to potential risks and altered biomechanics.
- Inability to follow instruction
- Ongoing physiotherapy or alternative treatments
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
- 主要用途：治疗
- 分配：随机化
- 介入模型：并行分配
- 屏蔽：双倍的
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
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实验性的：Post isometrics Relaxation Techniques (PIR)
In this group First conventional treatment will be applied for 20 minutes including Hot Pack and TENS (for 15 minutes) and sonics (for 5 minutes) Followed by PIR.
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Post-Isometric Relaxation is a type of MET in which the target muscle is gently contracted isometrically (without movement) against resistance, followed by a passive stretch during the post-contraction relaxation phase. To reduce muscle tension, increase flexibility, and lengthen tight muscles (like the piriformis in Piriformis Syndrome). Position the patient in a stretch position for the tight muscle just before the point of resistance. Then ask the patient to perform a gentle isometric contraction of the tight muscle (e.g., piriformis) for about 5-10 seconds against minimal resistance. After contraction, the patient relaxes for a few seconds. During this relaxation, the therapist passively stretches the muscle to a new barrier and holds for 15-30 seconds. Repeat 3-5 times. So, the whole treatment session will be of 50 minutes. This technique will be applied twice a week for 4 weeks. |
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有源比较器：Reciprocal Inhibition Technique
This group will receive Hot Pack and TENS (for 15 minutes) and Sonics (for 5 minutes) Followed by METs.
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Reciprocal Inhibition is another MET technique where the antagonist of the tight muscle is contracted, which reflexively causes the tight (agonist) muscle to relax.
To inhibit the overactive muscle by activating its opposing muscle group, allowing for greater stretch and flexibility.
Place the muscle (e.g., piriformis) into a gentle stretch.
Ask the patient to contract the antagonist muscle (e.g., hip adductors/internal rotators) for about 5-10 seconds.
Therapist then passively stretches the target muscle (e.g., piriformis) further.
Repeat 3-5 times.
So, the whole treatment session will be of 50 minutes.
This technique will be applied twice a week for 4 weeks.
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研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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NPRS for assessment of pain
大体时间：4 weeks
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To determine the degree of pain that the patient will report, the Numeric Pain Rating Scale (NPRS) will be utilized.
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4 weeks
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Lower Extremity Function Test (LEFT)
大体时间：4 weeks
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The LEFT protocol includes a timed sequence of agility-based tasks, typically performed in a zigzag pattern or shuttle-based layout over a 120-foot course
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4 weeks
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GONIOMETERY
大体时间：4 weeks
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Goniometry is the measurement of joint angles in the human body using a tool called a goniometer.
It is a standard and essential part of physical therapy and rehabilitation for assessing range of motion (ROM) in various joints
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4 weeks
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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员：Hira Shaukat, Mphill、Riphah International University
出版物和有用的链接
负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。
一般刊物
- Boyajian-O'Neill LA, McClain RL, Coleman MK, Thomas PP. Diagnosis and management of piriformis syndrome: an osteopathic approach. J Am Osteopath Assoc. 2008 Nov;108(11):657-64. doi: 10.7556/jaoa.2008.108.11.657.
- Kean Chen C, Nizar AJ. Prevalence of piriformis syndrome in chronic low back pain patients. A clinical diagnosis with modified FAIR test. Pain Pract. 2013 Apr;13(4):276-81. doi: 10.1111/j.1533-2500.2012.00585.x. Epub 2012 Aug 2.
- Kutty NN, Siddeeque S, Tamphaibema H, Othayoth N, Bineesh C. Effect of Muscle Energy Technique with Deep Friction Massage on Pain, Disability and Internal Rotation Range of Motion of Hip Joint in Individuals with Piriformis Syndrome. Indian Journal of Physiotherapy & Occupational Therapy. 2020;14(1).
- Tonley JC, Yun SM, Kochevar RJ, Dye JA, Farrokhi S, Powers CM. Treatment of an individual with piriformis syndrome focusing on hip muscle strengthening and movement reeducation: a case report. J Orthop Sports Phys Ther. 2010 Feb;40(2):103-11. doi: 10.2519/jospt.2010.3108.
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始 (估计的)
2026年6月17日
初级完成 (估计的)
2026年10月10日
研究完成 (估计的)
2026年11月20日
研究注册日期
首次提交
2026年6月8日
首先提交符合 QC 标准的
2026年6月8日
首次发布 (实际的)
2026年6月12日
研究记录更新
最后更新发布 (实际的)
2026年6月12日
上次提交的符合 QC 标准的更新
2026年6月8日
最后验证
2026年6月1日
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.