Comparing the Reciprocal Inhibition Method and Post-isometric Inhibition Method of Muscle Energy Technique on the Spinal Reflex Excitability in Healthy Subjects

NCT ID: NCT03980106

Last Updated: 2020-03-31

Basic Information

• Recruitment Status: UNKNOWN
• Clinical Phase: NA
• Total Enrollment: 30 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2020-06-06
• Study Completion Date: 2020-09-30

Brief Summary

This a cross-over study to compare the effect of two different muscle energy techniques (MET) including post-isometric inhibition and reciprocal inhibition on the spinal reflex excitability. The study contains two experimental groups, while one group will receive post-isometric inhibition MET in the first stage and reciprocal inhibition MET in the second stage, the other group will receive reciprocal inhibition MET in the first stage and post-isometric inhibition MET in the second stage.

Detailed Description

Reciprocal inhibition MET works based on the two mechanisms a) voluntary activation of agonist muscle that is simultaneously accompanied by the inhibition of the antagonist muscles or b) the activation of muscle spindle which causes a reflexive contraction in the agonist muscle (known as the stretch reflex) and relaxation of the antagonist muscles. By using this method, the activation of agonist muscles may inhibit or deactivate the antagonist muscles which may permit the therapist to introduce further ROM to the affected joint.

The other method of MET is post-isometric relaxation which works based on the two mechanisms including; 1) activation of Golgi Tendon Organs (GTO) that located between the muscle belly and its tendon and 2) presetting muscle spindles by muscle contraction witch project information to the spinal cord via afferent type II fibers and through a complex central control systems, the spindle is preset to adjust the tone of the muscle. It seems that moderate isometric contraction of muscle may preset the muscle spindle and cause a post-isometric relaxation within the agonist muscles which now can be stretched further, and this may permit the therapist to introduce further ROM to the affected joint and help to improve joint mobilization.

Conditions

Relaxation; Joint; Limitation, Mobility; Relaxation; Lumbosacral

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: TREATMENT
• Blinding Strategy: SINGLE

Study Groups

Experimental RI-PI

They receive the Reciprocal Inhibition (RI) technique in the first stage and then the Post-isometric Inhibition (PI) technique in the second stage.

Group Type: EXPERIMENTAL

Reciprocal Inhibition Muscle Energy Technique

Intervention Type: OTHER

In this technique, the subject will be asked to contract antagonist muscles against a moderate resistant force provided by the therapist to inhibit the contraction of the agonist muscle.

Post-Isometric Inhibition Muscle Energy Technique

Intervention Type: OTHER

In this technique, the subject will be asked to contract agonist muscles against a moderate resistant force provided by the therapist to inhibit the contraction of the agonist muscle.

Experimental PI-RI

They receive the Post-isometric Inhibition (PI) technique in the first stage and then the Reciprocal Inhibition (RI) technique in the second stage.

Group Type: EXPERIMENTAL

Reciprocal Inhibition Muscle Energy Technique

Intervention Type: OTHER

In this technique, the subject will be asked to contract antagonist muscles against a moderate resistant force provided by the therapist to inhibit the contraction of the agonist muscle.

Post-Isometric Inhibition Muscle Energy Technique

Intervention Type: OTHER

In this technique, the subject will be asked to contract agonist muscles against a moderate resistant force provided by the therapist to inhibit the contraction of the agonist muscle.

Interventions

Reciprocal Inhibition Muscle Energy Technique

In this technique, the subject will be asked to contract antagonist muscles against a moderate resistant force provided by the therapist to inhibit the contraction of the agonist muscle.

Intervention Type: OTHER

Post-Isometric Inhibition Muscle Energy Technique

In this technique, the subject will be asked to contract agonist muscles against a moderate resistant force provided by the therapist to inhibit the contraction of the agonist muscle.

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• without current low back pain

Exclusion Criteria

• Suffering from pain in the cervical, thoracic and lumbar spine,
• Presenting signs of radiculopathy or peripheral neuropathy such as specific patterns of numbness and muscle weakness,
• Any history or signs of joint instability, healing fractures, malignancy, open wounds, sutures, severe rheumatoid arthritis.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 30 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

University of North Georgia

OTHER

Sponsor Role: lead

Responsible Party

Mohammad(Reza) Nourbakhsh

Professor of Physical Therapy

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Mohammad R Nourbakhsh

Role: PRINCIPAL_INVESTIGATOR

Professor of Physical Therapy

Locations

University of North Georgia

Dahlonega, Georgia, United States

Site Status: RECRUITING

Countries

United States

Central Contacts

Mohammad R Nourbakhsh

Role: CONTACT

reza.nourbakhsh@ung.edu

7068641766

Facility Contacts

University of N Georgia

Role: primary

reza.nourbakhsh@ung.edu

706-864-1766

Other Identifiers

IRB 2019-026

Identifier Type: -

Identifier Source: org_study_id