Neurodynamic Sliders Promote Flexibility in Tight Hamstring Syndrome

NCT05652452 | Completed

• 1 other identifier: B670201630354
• Study Type: interventional
• Target: 50
• Locations: 0 countries
• Sites: N/A

Brief Summary

The goal of this study is to explore the intervention effect of home-based neurodynamic slider program on hamstring flexibility. Fifty physically active male subjects will be randomly assigned to either performing a neurodynamic sliding technique (3x20 reps) or a static stretching protocol (3x30") on a daily basis for a 6-week period. Hamstring flexibility will be assessed by means of the Straight Leg Raise at baseline, immediately after the intervention and after 4 weeks follow up.

Conditions

Hamstring Injury; Neurodynamics; Range of Motion

Outcome Measures

Primary Outcomes (3)

• Hamstring flexibility

  Straight leg raise by means of an app based goniometer

  at Baseline

• Hamstring flexibility

  Straight leg raise by means of an app based goniometer

  6 weeks after intervention

• Hamstring flexibility

  Straight leg raise by means of an app based goniometer

  4 weeks after retention period

Study Arms (2)

Neurodynamics

EXPERIMENTAL

Other: Neurodynamics

Static stretch

ACTIVE COMPARATOR

Other: Static stretch

Interventions

Neurodynamics OTHER

Subjects in the neurodynamic group performed the 'Seated Straight Leg Slider' (SSLS) (Fig.1). To execute this sliding technique, subjects assumed a seated slump position (thoracic and lumbar flexion) which they needed to maintain throughout the exercise. This SSLS consisted of alternating movements towards knee extension and ankle dorsiflexion (increase of neural tension) combined with cervical extension (decrease of neural tension) on one hand, and knee flexion and ankle plantar flexion (decrease neural tension) combined with cervical flexion (increase of neural tension) on the other. During this 6-week period, each subject in this neurodynamic slider group was instructed to perform 3 sets of 20 repetitions on a daily basis for 6 weeks.

Neurodynamics

Static stretch OTHER

Subjects in the control group were instructed to perform a standard standing static stretch with the heel of the dominant leg taking support on a chair. Then they had to move the pelvis into anteversion, simultaneously inducing a forward lean of the trunk, until the clear sensation of hamstring stretch was perceived at the posterior aspect of the thigh. Again, the execution of the exercise was thoroughly explained and evaluated by the researchers and subjects sent home with a comprehensive instruction guide and supporting pictures. Each subject was instructed to do 3 repetitions of 30 second static stretches on a daily basis during the 6-week intervention.

Static stretch

Eligibility Criteria

• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

• male
• aged between 18-30yrs
• recreationally/competitively active
• limited hamstring flexibility (Tight Hamstring Syndrome) (SLR≤75°)

You may not qualify if:

• a history of any musculotendinous hamstring injury in the previous year
• a history of neurological or orthopedic disorder affecting the lower extremities
• a history of lumbar disc herniation; or (4) a history of a cervical whiplash injury

Sponsors & Collaborators

• University Ghent: lead

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: July 4, 2018
• First Posted: December 15, 2022
• Study Start: January 1, 2017
• Primary Completion: July 1, 2017
• Study Completion: July 1, 2018
• Last Updated: December 15, 2022

Record last verified: 2022-12

Data Sharing

• IPD Sharing: Will not share