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Effects of Hamstring Training in Different Modes on Stabilizing Knee Joints With Anterior Drawer Laxity

NCT01170546 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 28

Last updated 2010-11-23

Study results available
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Summary

Question: To investigate how different modes of thigh muscles strengthening exercises emphasizing the knee internal rotators can be as effective as possible in improving the static stability and agility of the knees with anterior drawer laxity.

Design: Randomized controlled clinical trial.

Participants and Interventions:

Young men with anterior drawer laxity of the knee were randomly assigned to three experimental groups in different strengthening modes: plate-loaded squat press (SP), plate-loaded kneeling leg curl with internal rotation (KLCIR), and kneeling leg curl (KLC). The control group with stable knees received no training.

Outcome measures: static and dynamic knee stability, isokinetic strength. The purpose of this paper was to find out an optimal solution to the enhancement of the static and dynamic knee stability to a great extent.

Key words: anterior cruciate ligament; agility; knee stability; hamstring; knee internal rotator

Conditions

  • Knee Instability

Interventions

OTHER

plate-loaded kneeling leg curl with internal rotation

The participant was instructed to point toes toward medial side as knee flexing. This is an open-kinetic chain (OKC) exercise and medial hamstring was emphasized.

OTHER

plate-loaded squat press

The subject was instructed to position his back properly against the backrest on a machine, with the feet slightly apart. He was instructed to place his feet higher on the foot plate and draw his two knees as close as possible while the knees flexed so that medial hamstring would supposedly bear more tension in the course of knee flexion. This is a closed-kinetic chain (CKC) exercise and was expected to strengthen the quadriceps and hamstring with medial hamstring emphasized.

OTHER

plate-loaded kneeling leg curl

An open-kinetic chain (OKC) exercise was intended to strengthen the hamstring muscle without lateralization emphasized.

Sponsors & Collaborators

  • Taipei Physical Education College

    lead OTHER

Principal Investigators

  • Shih-Wei Chou · Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
15 Years
Max Age
30 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2006-01-31
Primary Completion
2007-01-31
Completion
2007-04-30

Countries

  • Taiwan

Study Locations

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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 NCT01170546 on ClinicalTrials.gov