Comparison of the Effects of Static and PNF Hamstring Stretching Exercises in Patients With Knee Osteoarthritis

Not Applicable

Completed

• Conditions: Knee Osteoarthritis
• Interventions: Other: Static Stretching; Other: PNF Stretching

• Registration Number: NCT04645238
• Lead Sponsor: Dokuz Eylul University

Brief Summary

The aim of this study is to determine and compare the effects of static and PNF hamstring stretching exercises on joint pain, hamstring flexibility and functional status in patients with knee osteoarthritis.

Detailed Description

A total of 36 patients between the ages of 40 and 75 who were diagnosed with Kellgren-Lawrence Stage II and III knee OA by the physician were included in the study. Participants were divided into two groups as static stretching group or PNF stretching group. Patients' demographic and clinical information was recorded. Pain intensity was evaluated with visual pain scale, hamstring flexibility with Active Knee Extension Test, functional status with Western Ontario and McMasters University Osteoarthritis Index and Timed Get Up and Go Test. In addition to the standard physiotherapy program, the subjects practiced stretching exercises according to the groups that they've been separated. Evaluations were repeated in the end of the treatment and in the follow-up.

Study Timeline

• Study Start: 2019-09-01
• Primary Completion: 2020-09-30
• Study Completion: 2020-09-30
• Study First Submitted: 2020-11-20
• Study First Submitted QC: 2020-11-20
• Study First Posted: 2020-11-27
• Status Verified: 2021-02
• Last Update Submitted: 2025-04-05
• Last Update Posted: 2025-04-09

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 36

Inclusion Criteria

• Individuals with knee osteoarthritis severity II, III, or IV according to the Kellgren-Lawrence Classification,
• Individuals with positive active knee extension test,
• Individuals with a body mass index of 30 or less,
• Individuals with a pain severity of at least 3/10 according to the visual pain scale.

Exclusion Criteria

• Individuals with health problems that prevent them from doing the evaluations and exercises to be used in the study,
• Individuals who exercise regularly for the last six months,
• Individuals with a diagnosis of neurological disease affecting the lower extremity.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Static Hamstring Stretching	Static Stretching	Static Hamstring Stretching
PNF Stretching	PNF Stretching	PNF Hamstring Stretching (Hold-Relax)

Primary Outcome Measures

Name	Time	Method
Active Knee Extension Test for Hamstring Flexibility	Post-intervention and follow-up	Higher values represent better outcomes.

Secondary Outcome Measures

Name	Time	Method
Visual Analogue Scale for Pain	Post-intervention and follow-up	The scale varies from 0 to 10. Higher values represent worse outcomes.
The Timed Up & Go Test	Post-intervention and follow-up	Higher values represent worse outcomes.
Western Ontario and McMaster Universities Osteoarthritis Index	Post-intervention and follow-up	The scale varies from 0 to 96. Higher values represent worse outcomes.

Trial Locations

Locations (1)

Fizyotem Medical Center; 🇹🇷 Trabzon, Turkey