Comparative Effects of Post-Isometric Relaxation and Reciprocal Inhibition Techniques inPiriformis Syndrome
8 juni 2026 uppdaterad av: 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.
Studieöversikt
Status
Har inte rekryterat ännu
Betingelser
Intervention / Behandling
Detaljerad beskrivning
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
Studietyp
Interventionell
Inskrivning (Beräknad)
42
Fas
- Inte tillämpbar
Kontakter och platser
Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.
Studiekontakt
- Namn: Imran Amjad
- Telefonnummer: 03324390125
- E-post: Imran.amjad@riphah.edu.pk
Studieorter
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Punjab Province
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Lahore, Punjab Province, Pakistan, 54000
- Ghurki Hospital Lahore
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Kontakt:
- Hira Shaukat, TDPT
- Telefonnummer: 03360405480
- E-post: hira.shaukat@riphah.edu.pk
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Huvudutredare:
- Hafiza Mahnoor Anwar, MSOMPT
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Deltagandekriterier
Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.
Urvalskriterier
Åldrar som är berättigade till studier
- Vuxen
Tar emot friska volontärer
Nej
Beskrivning
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
Studieplan
Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Behandling
- Tilldelning: Randomiserad
- Interventionsmodell: Parallellt uppdrag
- Maskning: Dubbel
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
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Experimentell: 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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Aktiv komparator: 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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Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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NPRS for assessment of pain
Tidsram: 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)
Tidsram: 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
Tidsram: 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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Samarbetspartners och utredare
Det är här du hittar personer och organisationer som är involverade i denna studie.
Sponsor
Utredare
- Huvudutredare: Hira Shaukat, Mphill, Riphah International University
Publikationer och användbara länkar
Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.
Allmänna publikationer
- 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.
Studieavstämningsdatum
Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.
Studera stora datum
Studiestart (Beräknad)
17 juni 2026
Primärt slutförande (Beräknad)
10 oktober 2026
Avslutad studie (Beräknad)
20 november 2026
Studieregistreringsdatum
Först inskickad
8 juni 2026
Först inskickad som uppfyllde QC-kriterierna
8 juni 2026
Första postat (Faktisk)
12 juni 2026
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
12 juni 2026
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
8 juni 2026
Senast verifierad
1 juni 2026
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- REC/RCR&AHS/25/0120
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