Influence of Muscle Stretching and Neural Mobilizations on Lower Limbs Range of Motion in Asymptomatic Subjects.

Summary

First, this study aims to use the straight leg raising test (SLR) and the knee angle extension test (KEA) test associated to a structural differentiation to determine the limitation of the lower limb (muscular or nervous) in asymptomatic subjects.

Second, this study will try to determine the most efficient exercice to increase range of motion of the lower limb in function of subjects limitation type (muscular, nervous,) using neural mobilization (sliders or tensioners) and muscle stretching.

Two groups will be constituted for each test (SLR and KEA) based on the limitation defined during the test:

Group 1: Muscle limitation Group 2: Neural limitation

Each group will be subdivided in four subgroups depending on the intervention participants will receive:

* subgroup 1: Muscle stretching group
* subgroup 2: Neural tensioner group
* subgroup 3: Neural slider group
* subgroup 4: Control group

Participants from groups 1,2 and 3 will be asked to do an exercice every day during 31 days, independently of their subgroup allocation.

Participants from group 1 will perform a muscle stretching technique during 20 second twice a day.

Participants from group 2 will do 10 repetitions of tensioner twice a day. Participants from group 3 will do 10 repetitions of a slider twice a day.

Subgroup comparisons of the evolution of the range of motion during SLR and KEA before and after the month of exercice will determine which technique is the most efficient for a specific type of limitation.

Conditions

• Asymptomatic Condition

Interventions

OTHER

muscle streching exercice

For this exercice the participant will have to place the foot of the stretched leg on a step while maintaining his knee in extension. From this starting position the patient will have to do a pelvic anterior tilt while keeping is back straight and his gaze horizontal until the movement induce a feeling of stretching in the posterior part of the thigh.

OTHER

Slider

In order to define the starting position for a slider, the participant will be positioned in lateral decubitus with the knee extended and will perform a hip flexion until a sensation of pain or stretching feeling appears on the posterior part of the thigh or of the knee. If the hip flexion does not induce a stretching sensation or pain, a dorsal ankle flexion is added. Once this position is defined the patient slightly reduces the amount of hip flexion until the stretching/pain sensation disappears. From this starting position, to perform the slider: the subject performs a hip flexion movement and simultaneously a cervical extension movement, this corresponds to the outward movement. For the return movement the patient performs a hip extension and at the same time a cervical flexion. The slider technique must be pain free.

OTHER

Tensioner

The participant will be positioned in lateral decubitus with the knee extended and the hip, the cervical, thoracic and lumbar spine placed in neutral position. For the outward movement, the participant will perform a hip flexion associated with a simultaneous movement of cervical extension until a sensation of pain or a stretching feeling appears on the posterior part of the thigh or of the knee.If this combined movements do not induce a stretching sensation or pain, a dorsal flexion of the ankle is added. For the return movement, the participant will realize a hip extension simultaneously associated to a movement of extension of the cervical spine. If the dorsal flexion of the ankle was used during the outward movement, a movement plantar flexion of the ankle must be used in association to the movement of hip extension.

Sponsors & Collaborators

• University of Liege

  lead OTHER

Principal Investigators

• Pierre Pesesse, master · University of Liege

Study Design

Allocation

NON_RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Model

PARALLEL

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2023-06-15

Primary Completion

2023-10-04

Completion

2023-10-04

Countries

• Belgium

Study Locations