Optimal Duration of Stretching Exercise in Patients With Chronic Mechanical Neck Pain

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-07-05

Study Completion Date

2020-07-20

Brief Summary

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controversy remains about the stretching parameters needed to achieve a particular goal or treatment outcome. In clinical practice, multiple stretching techniques are used; nevertheless, there is no evidence-based agreement on the most effective parameters. One of these parameters, that might be affecting the treatment outcome the most, is the stretching duration, thus far there is a little agreement on the optimal stretching duration.

This non agreement in exact stretching parameters is obvious between authors and researchers in the field of muscle energy techniques (MET) as well as those who have used and advocate various durations for the passive stretch that follows the contraction phase in MET.

Detailed Description

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comparison and subsequent conclusions about appropriate stretching times are mainly based on mechanical factors such as range of motion and flexibility, while ignoring the neural adversative mechanical tension that may be created during stretching exercises. According to the literature , stretching induced neural tension may adversely affect the central nervous system and nerve root function due to the absence of the perineurium, which is the primary load carrying structure. Thus, safe or unsafe limits of nerve elongation are not well established, despite several basic scientific and clinical studies.. Consequently, in the present study, the current study aimed to answer the question: Is it theoretically possible, that increased longitudinal strain and stress on the spinal cord and nerve root from continuous stretching exercises may subtly impair the neural function? Our hypothesis is that a duration threshold exists where, once reached, adverse neural function will be apparent resulting in a reduction of either or both latency and amplitudes of evoked potentials.

Conditions

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Mechanical Neck Pain

Keywords

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Randomized controlled trial muscle energy technique Stretching exercises

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

A prospective, double blinded, parallel-group, randomized clinical trial was conducted at one of our university's research departments,

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

The treating therapist, for both the control and intervention groups, was unblinded to the treatment method but the subjects and assessor who conducted the measurements were blinded. Assessor blinding was obtained through an independent research assist; not knowing the study design and not specifically involved in any aspect of the tria

Study Groups

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60 seconds

60 seconds stretching group Stretching exercises for upper Trapezius and Levator the examiner will passively place the participant's head into flexion, side-bending away and rotation towards the side to be stretched (for upper trapezius muscle) and flexion, side-bending away and rotation away from the side to be stretched (for levator scapula ). The patient introduces a light resisted effort to take the stabilized shoulder towards the ear and the ear towards the shoulder. The contraction is sustained for 10 seconds and, upon complete relaxation of effort, the therapist gently eases the head/ neck into an increased degree of side-bending and rotation, where it is stabilized, as the shoulder is stretched caudally. The examiner will depress the participant's shoulder with 100 Newton's of force measured with pressure dynamometer. Once the examiner achieved this level of force, he maintains the stretch for 60 seconds . The procedure is repeated three times.

Group Type EXPERIMENTAL