Neurodynamic Sliders Promote Flexibility in Tight Hamstring Syndrome

Hamstring Injury Clinical Trial

Official title:

Neurodynamic Sliders Promote Flexibility in Tight Hamstring Syndrome

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT05652452
• Other study ID #: B670201630354
• Status: Completed
• Phase: N/A
• Start date: January 2017
• Est. completion date: July 2018

Study information

• Verified date: December 2022
• Source: University Ghent
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial 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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 50
• Est. completion date: July 2018
• Est. primary completion date: July 2017
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Male
• Age group: N/A and older

Eligibility

Inclusion Criteria:

• male

• aged between 18-30yrs

• recreationally/competitively active

• limited hamstring flexibility (Tight Hamstring Syndrome) (SLR=75°)

Exclusion Criteria:

• 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

Related Conditions & MeSH terms

• Hamstring Injury
• Range of Motion

Intervention

Other:
• Neurodynamics
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.
• Static stretch
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.

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
University Ghent

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Hamstring flexibility	Straight leg raise by means of an app based goniometer	at Baseline
Primary	Hamstring flexibility	Straight leg raise by means of an app based goniometer	6 weeks after intervention
Primary	Hamstring flexibility	Straight leg raise by means of an app based goniometer	4 weeks after retention period