Efficacy of Hamstring Stretching According to the Neural or Muscle Tissue Involvement

NCT ID: NCT04763798

Last Updated: 2022-09-06

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 35 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2020-12-11
• Study Completion Date: 2021-02-20

Brief Summary

Background: Muscle stretching is a technique widely used in the clinical practice of physiotherapy and in the field of sports. In the bibliography we find a multitude of stretches and procedures described, some of them being similar to neurodynamic tests, which could direct their effect to a neural and not a musculoskeletal structure. The structural differentiation manoeuvre has been shown to be able to discriminate the increase in tension on the nerve.

Objective: To evaluate the short-term efficacy on ischiosural muscle elongation of three modalities of ischiosural stretching according to neural or muscular involvement, in subjects without previous pathology.

Design: Cross sectional study. Methods: A randomised, blinded, assessor-blinded clinical trial was performed. According to the sample size calculation, a total of 35 subjects will be recruited from the International University of Catalonia. Each subject will undergo three hamstring stretching techniques on their dominant leg, Straight-leg-raise (SLR), Passive knee extension (PKE) and Maximun hip flexion (MHF) with an interval of one week on the dominant leg. Muscle elongation in each stretching modality will be assessed with the modified black saver sit and reach test and whether the technique generates a neural or musculoskeletal response when performing the structural differentiation manoeuvre.

Detailed Description

Background: Muscle stretching is a technique widely used in the clinical practice of physiotherapy and in the field of sports. In the bibliography we find a multitude of stretches and procedures described, some of them being similar to neurodynamic tests, which could direct their effect to a neural and not a musculoskeletal structure. The structural differentiation manoeuvre has been shown to be able to discriminate the increase in tension on the nerve.

Objective: To evaluate the short-term efficacy on ischiosural muscle elongation of three modalities of ischiosural stretching according to neural or muscular involvement, in subjects without previous pathology.

Design: Cross sectional study.

Conditions

Muscle Stretching

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: TREATMENT
• Blinding Strategy: SINGLE

Study Groups

Dominant

All subjects will receive the three stretching techniques on dominant leg. Interventions will be performed in three different days and only one of the three stretching exercises will be performed in each session. The rest period between sessions will be one week. Stretching exercises will be perform in a random order. A random-number generator will be used for randomization

Group Type: EXPERIMENTAL

Straight-leg-raise (SLR)

Intervention Type: OTHER

The stretched lower limb was on a mobile support and the contralateral limb was stabilized with a belt on the bench. For the SLR, the knee was kept in full extension and then, hip flexion was performed until a marked resistance. All stretching modalities were applied until a marked resistance was felt by the physical therapist (end-feel) or until the point of maximal tolerance referred by subjects.The stretch lasted 30 seconds followed by 15 seconds rest period and the procedure was repeated 5 times. Each stretching was applied for 5 minutes

Passive Knee extension test (PKE)

Intervention Type: OTHER

The stretched lower limb was on a mobile support and the contralateral limb was stabilized with a belt on the bench. For the PKE, the hip was kept in 90º flexion and then, knee extension was performed. All stretching modalities were applied until a marked resistance was felt by the physical therapist (end-feel) or until the point of maximal tolerance referred by subjects.

The stretches lasted 30 seconds followed by 15 seconds rest period and the procedure was repeated 5 times. Each stretching was applied for 5 minutes

Maximum hip flexion (MHF)

Intervention Type: OTHER

The stretched lower limb was on a mobile support and the contralateral limb was stabilized with a belt on the bench. For MHF, a maximal hip flexion was performed and then, knee extension was applied. All stretching modalities were applied until a marked resistance was felt by the physical therapist (end-feel) or until the point of maximal tolerance referred by subjects.

The stretches lasted 30 seconds followed by 15 seconds rest period and the procedure was repeated 5 times. Each stretching was applied for 5 minutes

Non dominant

All subjects will receive the three stretching techniques on non dominant leg. Interventions will be performed in three different days and only one of the three stretching exercises will be performed in each session. The rest period between sessions will bé one week. Stretching exercises will be perform in a random order. A random-number generator will bé used for randomization

Group Type: ACTIVE_COMPARATOR

Straight-leg-raise (SLR)

Intervention Type: OTHER

The stretched lower limb was on a mobile support and the contralateral limb was stabilized with a belt on the bench. For the SLR, the knee was kept in full extension and then, hip flexion was performed until a marked resistance. All stretching modalities were applied until a marked resistance was felt by the physical therapist (end-feel) or until the point of maximal tolerance referred by subjects.The stretch lasted 30 seconds followed by 15 seconds rest period and the procedure was repeated 5 times. Each stretching was applied for 5 minutes

Passive Knee extension test (PKE)

Intervention Type: OTHER

The stretched lower limb was on a mobile support and the contralateral limb was stabilized with a belt on the bench. For the PKE, the hip was kept in 90º flexion and then, knee extension was performed. All stretching modalities were applied until a marked resistance was felt by the physical therapist (end-feel) or until the point of maximal tolerance referred by subjects.

The stretches lasted 30 seconds followed by 15 seconds rest period and the procedure was repeated 5 times. Each stretching was applied for 5 minutes

Maximum hip flexion (MHF)

Intervention Type: OTHER

The stretched lower limb was on a mobile support and the contralateral limb was stabilized with a belt on the bench. For MHF, a maximal hip flexion was performed and then, knee extension was applied. All stretching modalities were applied until a marked resistance was felt by the physical therapist (end-feel) or until the point of maximal tolerance referred by subjects.

The stretches lasted 30 seconds followed by 15 seconds rest period and the procedure was repeated 5 times. Each stretching was applied for 5 minutes

Interventions

Straight-leg-raise (SLR)

The stretched lower limb was on a mobile support and the contralateral limb was stabilized with a belt on the bench. For the SLR, the knee was kept in full extension and then, hip flexion was performed until a marked resistance. All stretching modalities were applied until a marked resistance was felt by the physical therapist (end-feel) or until the point of maximal tolerance referred by subjects.The stretch lasted 30 seconds followed by 15 seconds rest period and the procedure was repeated 5 times. Each stretching was applied for 5 minutes

Intervention Type: OTHER

Passive Knee extension test (PKE)

The stretched lower limb was on a mobile support and the contralateral limb was stabilized with a belt on the bench. For the PKE, the hip was kept in 90º flexion and then, knee extension was performed. All stretching modalities were applied until a marked resistance was felt by the physical therapist (end-feel) or until the point of maximal tolerance referred by subjects.

The stretches lasted 30 seconds followed by 15 seconds rest period and the procedure was repeated 5 times. Each stretching was applied for 5 minutes

Intervention Type: OTHER

Maximum hip flexion (MHF)

The stretched lower limb was on a mobile support and the contralateral limb was stabilized with a belt on the bench. For MHF, a maximal hip flexion was performed and then, knee extension was applied. All stretching modalities were applied until a marked resistance was felt by the physical therapist (end-feel) or until the point of maximal tolerance referred by subjects.

The stretches lasted 30 seconds followed by 15 seconds rest period and the procedure was repeated 5 times. Each stretching was applied for 5 minutes

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• Healthy subjects over 18 years old who signed the informed consent.

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Universitat Internacional de Catalunya

OTHER

Sponsor Role: lead

Responsible Party

Carlos López de Celis

Doctor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Carlos L López de Celis, Dr

Role: PRINCIPAL_INVESTIGATOR

Universitat Internacional de Catalunya

Locations

Universitat Internacional de Catalunya

Sant Cugat del Vallès, Barcelona, Spain

Countries

Spain

Other Identifiers

CBAS-2019-12

Identifier Type: -

Identifier Source: org_study_id