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Effect of 0° and 50° N-K Table Load Angles on Quadriceps Activation in Knee Osteoarthritis

NCT07456254 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 43

Last updated 2026-03-06

No results posted yet for this study

Summary

Knee osteoarthritis (OA) is a common degenerative joint disease that leads to pain, reduced mobility, and functional limitation. Quadriceps femoris weakness plays a significant role in disease progression and disability. Isotonic strengthening using the N-K Table allows adjustment of load angles to optimize muscle activation; however, the effect of different load angles on quadriceps activation in patients with knee osteoarthritis remains unclear.

This study aims to compare quadriceps femoris activation at 0° and 50° N-K Table load angles in patients with knee osteoarthritis using surface electromyography (sEMG). A randomized cross-over experimental design is applied to determine whether adjusting the load angle improves maximum voluntary contraction (MVC) during isotonic knee extension exercise.

Conditions

Interventions

OTHER

Isotonic Quadriceps Exercise Using NK Table

Isotonic knee extension exercise performed using the N-K Table device at specified load angles (0° and 50°) with resistance set at 75% of 10RM.

Sponsors & Collaborators

  • Indonesia University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
50 Years
Max Age
65 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-01-20
Primary Completion
2024-06-05
Completion
2025-05-25

Countries

  • Indonesia

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07456254 on ClinicalTrials.gov