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Clinical Trials/NCT06796491
NCT06796491CompletedNot Applicable

Effects of Post Isometric Relaxation and Post Facilitation Stretch on Pain, Range of Motion and Disability in Patients With Tight Hamstrings Syndrome

Riphah International University1 site in 1 country46 target enrollmentStarted: March 10, 2025Last updated:
Conditions
Interventions

Trial Snapshot

Phase
Not Applicable
Status
Completed
Enrollment
46
Locations
1
Primary Endpoint
Numeric pain rating scale

Study Overview

Brief Summary

This randomized clinical trial aims to compare the effects of post-isometric relaxation (PIR) and post-facilitation stretch (PFS) on pain, range of motion, and disability in individuals with tight hamstring syndrome. Conducted at Riphah Rehabilitation Clinic, Lahore, participants aged 18-35 years with posterior thigh pain will be divided into two groups. Both groups will receive hot pack therapy and core strengthening exercises, with Group A receiving PIR and Group B receiving PFS. Outcomes will be assessed at baseline and after 4 weeks using NPRS, a disability questionnaire, and a goniometer, with data analyzed using SPSS version 25.

Detailed Description

Both PIR and PFS are subtypes of Muscle Energy Techniques (MET) that have shown potential in improving muscle flexibility and reducing discomfort. This study aims to address the impacts of PIR and PFS on pain, ROM, and disability in patients with tight hamstrings syndrome, providing valuable insights for clinical practice and enhancing the understanding of effective interventions for this common musculoskeletal issue.

The current literature on stretching techniques for musculoskeletal conditions reveals several gaps specifically relevant to the effects of Post Isometric Relaxation (PIR) and Post Facilitation Stretch (PFS) on tight hamstrings syndrome. Despite the high incidence of hamstring tightness and its association with conditions such as nonspecific low back pain, there is limited research directly comparing the effects of Post Isometric Relaxation (PIR) and Post Facilitation Stretch (PFS) on this condition. While studies have explored various stretching methods such as Muscle Energy Technique (MET), static stretching, and myofascial release, there is a notable lack of direct comparative research between PIR and PFS in patients with tight hamstrings. Additionally, existing studies had often focused on immediate or short-term outcomes, with limited investigation into the long-term effects of these techniques on pain, range of motion (ROM), and disability.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Treatment
Masking
Double (Participant, Outcomes Assessor)

Eligibility Criteria

Ages
18 Years to 35 Years (Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • •Both male and female
  • •Age between 18 to 35 years(45)
  • •Bilateral hamstring muscle tightness
  • •Individuals having lack of Active knee extension more than 20 degrees(46)

Exclusion Criteria

  • •Low back pain radiating to the back of thigh
  • •History of fracture, dislocation of hip(47)
  • •Acute or chronic hamstring injury
  • •Any neurological disease(48)
  • •Congenital deformity of the lower limb
  • •Inflammatory condition that affects motion
  • •A history of a cervical whiplash injury(45)

Arms & Interventions

Post Isometric Relaxation

Experimental

Patient applied the sub-maximal contraction almost 20%. Isometric contraction will be held for 10 seconds and then slight stretch for 30 seconds will be maintained. 4 contractions per treatment with 3 seconds rest between each contraction. This protocol continues 3 days/week for 4 weeks

Intervention: Post Isometric relaxation (Other)

Post Facilitation Stretch

Active Comparator

Isometric contraction will be held for 10 seconds and then slight stretch for 30 seconds will be maintained. 4 contractions per treatment with 3 seconds rest between each contraction. This protocol continues 3 days/week 4 weeks. for hamstring flexibility

Intervention: Post Facilitation stretch (Other)

Outcomes

Primary Outcomes

Numeric pain rating scale

Time Frame: 4th week

The severity of pain will be measured by using the NPRS scale, which goes from '0' (meaning there is no pain) to 10'' (meaning there is most agony possible) ("pain is severe as you can imagine"). It was accepted that the scale was convenient for determining patients' pain thresholds. The NPRS scale has a score range of 0 to 10. It was a valid and reliable tool. Va;idity ranging from 0.79 to 0.95 and reliability from 0.67 to 0.96.

Secondary Outcomes

  • Active Knee Extension Test(4th week)
  • Modified Oswestry Disability Index(4th week)

Investigators

Sponsor Class
Other
Responsible Party
Sponsor

Study Sites (1)

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Effects of PIR and PFS on Pain, ROM, and... | Clinical Trial