Optimal Duration of Stretching of the Hamstring Muscle Group

NCT04441801 | Completed DMC

• 1 other identifier: USharjah
• Study Type: interventional
• Target: 100
• Locations: 1 country
• Sites: 1

Brief Summary

OBJECTIVE: To explore the effect of variable stretching intervals on neural function and ROM. DESIGN: Randomized controlled trial Participants: In this trial, 168 participants diagnosed with tight hamstring muscles (defined as the inability to extend the knee to less than 20° of knee flexion) were randomly assigned to the control group or one of the 3 intervention groups Interventions: The three experimental groups was stretched for 15, 30, and 60 seconds, respectively the control group did not stretch Main Outcome Measures: The neurophysiological outcome measures included peak to peak somatosensory evoked potential for dermatomes L3,L4,L5, and S1. Secondary outcome measures included knee ROM. All outcome measures were assessed immediately after the treatment session and 24 hours after the treatment session.

Conditions

Physical and Rehabilitation Medicine

Keywords

Stretching; Randomized controlled trial; Hamstring

Outcome Measures

Primary Outcomes (1)

• Change in dermatomal somatosensory evoked potentials immediately after treatment

  In all dermatomes, 2 complete recording runs will be undertaken during each session with averages of 250 to 1200 cortical responses from scalp surface recording electrodes (C3'-C4' in a 10-20 electrode configuration) of the contralateral scalp to the stimulated dermatomes being stimulated. The impedance of ground and scalp electrodes will be maintained at \< 5 k Cutaneous areas of L3,L4,L5, S1 sensory roots will be stimulated in lower limb with the electrical impulses of 0.2 ms duration, frequency of 3.3 Hz and intensity 3 times higher than the sensory threshold will be determined individually for each subject.

  pre-treatment , immediately after treatment and at 24 hours after the treatment .

Secondary Outcomes (1)

• change in range of motion

  pre-treatment , immediately after treatment and at 24 hours after the treatment .

Study Arms (4)

15 seconds

EXPERIMENTAL

Stretching of the hamstring muscles will be performed by the primary researcher. A straight-leg-raising technique will be used for this stretch because we believe that it is commonly used in the clinical setting for elderly people. All subjects were supine lying as flat as possible, each subject's knee will be maintained in extension with the ankle at 90 degrees without medial (internal) or lateral (external) rotation of the lower extremity, and the extremity was raised until the subject reported discomfort. The subject was asked to relax the lower extremity in an effort to prevent contracting muscles from affecting the stretch and to allow for a slow stretch. stretching will continue for 15 seconds .The patient relaxed for approximately 20s and the procedure was repeated three times.

Other: stretching exercise

30 seconds

EXPERIMENTAL

the same stretching technique will continue for 30 seconds .The patient relaxed for approximately 20s and the procedure was repeated three times.

Other: stretching exercise

60 seconds

EXPERIMENTAL

the same stretching technique will continue for 60 seconds .The patient relaxed for approximately 20s and the procedure was repeated three times.

Other: stretching exercise

control

SHAM COMPARATOR

The control group followed the same procedures except that no stretching force was applied at the end.

Other: stretching exercise

Interventions

stretching exercise OTHER

Static stretching consists of stretching a muscle (or group of muscles) to its farthest point and then maintaining or holding that position

15 seconds; 30 seconds; 60 seconds; control

Eligibility Criteria

• Age: 60 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Subjects with "tight" hamstring muscles, defined as inability to extend the knee to less than 20 degrees of knee flexion with the femur held at 90 degrees of hip flexion while the person was positioned supine.

You may not qualify if:

• Using of medical aids.
• suffering from any neurological or cognitive impairment, limiting cardio-respiratory conditions,
• had undergone recent surgery (within the past 12 months).
• Having any hip or knee replacements or any history of pathology in the low back, hips, or knees for the 3 months prior to the study

Sponsors & Collaborators

• University of Sharjah: lead

Study Sites (1)

Ibrahim Moustafa

Sharjah city, United Arab Emirate, 27272, United Arab Emirates

Location

MeSH Terms

Interventions

Muscle Stretching Exercises

Intervention Hierarchy (Ancestors)

Exercise Therapy; Rehabilitation; Aftercare; Continuity of Patient Care; Patient Care; Therapeutics; Physical Therapy Modalities; Exercise; Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Officials

• Ibrahim Moustafa, professor

  University of Sharjah

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Masking Details: The assessor, who took the measurements for both the intervention and control groups, was blinded to the subject's group, while the treating therapist was not blinded to the treatment intervention.
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Model Details: A prospective, parallel-group, randomized clinical trial participants will be randomly assigned to the control group or one of the 3 intervention groups .The three experimental groups was stretched for 15, 30, and 60 seconds, respectively the control group did not stretch

Study Record Dates

• First Submitted: June 12, 2020
• First Posted: June 22, 2020
• Study Start: June 5, 2020
• Primary Completion: September 1, 2020
• Study Completion: September 20, 2020
• Last Updated: October 30, 2020

Record last verified: 2020-10

Data Sharing

• IPD Sharing: Will not share

Locations

AE (1)