NCT06796491

Effects of PIR and PFS on Pain, ROM, and Disabilty in Tight Hamstring Syndrome

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

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 46 (actual)
• Sponsor: Riphah International University · Academic / Other
• Sex: All
• Age: 18 Years – 35 Years
• Healthy volunteers: Not accepted

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.

Conditions

• Hamstrings
• Flexibility
• Range of Motion
• Disability

Interventions

Type	Name	Description
OTHER	Post Isometric relaxation	Group A will receive Post Isometric Relaxation (PIR) Patient applied the sub-maximal contraction almost 20%. Isometric contraction was held for 10 seconds and then slight stretch for 30 seconds was maintained.4 contractions per treatment with 3 seconds rest between each contraction. This protocol continues 3 days/week for 4 weeks conventional treatment Hot pack for 10 minutes Pelvic bridging: The subjects will be asked to lie supine and with knee flexed and then raise the pelvis upward till the comfort then hold that position for 5 sec and repetitions were 10 times Cat and camel: The subjects will be requested to prone kneel and then take a deep breath from nose while making hump in the back (cat) and breathe out from mouth while curving the spine (camel) for 5 second 10 times repetitions
OTHER	Post Facilitation stretch	Group B will receive Post Facilitation Stretch (PFS) Isometric contraction was held for 10 seconds and then slight stretch for 30 seconds was maintained. 4 contractions per treatment with 3 seconds rest between each contraction. This protocol continues 3 days/week 4 weeks. for hamstring flexibility conventional treatment Hot pack for 10 minutes Pelvic bridging: The subjects will be asked to lie supine and with knee flexed and then raise the pelvis upward till the comfort then hold that position for 5 sec and repetitions were 10 times Cat and camel: The subjects will be requested to prone kneel and then take a deep breath from nose while making hump in the back (cat) and breathe out from mouth while curving the spine (camel) for 5 second 10 times repetitions

Timeline

• Start date: 2025-03-10
• Primary completion: 2025-07-01
• Completion: 2025-07-13
• First posted: 2025-01-28
• Last updated: 2025-07-15

Locations

1 site across 1 country: Pakistan