Effect of Knee Extensor Training on the Lumbar Spine

Summary

The goal of this clinical trial is to learn if knee extensor training with different protocols works to treat LBP in adults.. The main questions it aims to answer are:

What are the comparative effects of open and closed kinetic chain knee extensor strengthening exercises versus lumbar stabilization exercises on lumbar curvature, postural control, and disability in individuals with non-specific low back pain? 1.4.2. How does open kinetic chain knee extensor strengthening affect pain, functional capacity, and lumbar spine stability compared to closed kinetic chain exercises in individuals with non-specific low back pain? 1.4.3 What is the effect of open kinetic chain knee extensor strengthening on pain, functional capacity, and lumbar spine stability compared to conventional lumbar muscle exercises in individuals with non-specific low back pain? 1.4.4 What is the effect of closed kinetic chain knee extensor strengthening on pain, functional capacity, and lumbar spine stability compared to conventional lumbar muscle exercises in individuals with non-specific low back pain? 1.4.5 What is the effect of open kinetic chain knee extensor strengthening on pain, functional capacity, and lumbar spine stability in individuals with non-specific low back pain? 1.4.6 What is the effect of close kinetic chain knee extensor strengthening on pain, functional capacity, and lumbar spine stability in individuals with non-specific low back pain? 1.4.7 What is the effect of conventional lumbar extensor strengthening on pain, functional capacity, and lumbar spine stability in individuals with non-specific low back pain Researchers will compare three different exercise protocols to a control group (will not receive exercise) to see if knee extensor training has an effect on problems associated with LBP.

Participants will:

* Exercise three times per week for 8 weeks
* Be assessed before, 4 weeks after, and 8 weeks after intervention

Conditions

• Non Specific Low Back Pain

Interventions

OTHER

CKC and OKC Exercise

knee extensor OKC and CKC exercise added to the lumbar strengthening exercise

OTHER

back strengthening exercise

strengthening exercise to lumbar extensors

OTHER

OKC Exercise

knee extensor OKC exercise added to the lumbar strengthening exercise

OTHER

CKC Exercise

knee extensor CKC exercise added to the lumbar strengthening exercise

Sponsors & Collaborators

• Cairo University

  collaborator OTHER

• Taif University

  collaborator OTHER

• Lincoln University College

  lead OTHER

Principal Investigators

• ABDULLAH F ALHUMAYANI · LUC Malaysia

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

TRIPLE

Model

PARALLEL

Eligibility

Min Age

40 Years

Max Age

60 Years

Sex

MALE

Healthy Volunteers

No

Timeline & Regulatory

Start

2026-02-01

Primary Completion

2026-04-01

Completion

2026-06-01