Clinical trial NCT04763798: Efficacy of Hamstring Stretching According to the Neural or Muscle Tissue Involvement
Official title: Efficacy of Hamstring Stretching According to the Neural or Muscle Tissue Involvement
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Muscle Stretching
Keywords: Hamstring
Passive Knee extension test
Straight-leg-raise
maximun hip flexion
musculoskeletal response
nerve response
Lead sponsor: Universitat Internacional de Catalunya
Sponsor class: OTHER
First posted: 2021-02-21
Enrollment: 35
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Intervention model description: Cross sectional study. Randomized controlled trial
Primary purpose: TREATMENT

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.

Eligibility criteria: Inclusion Criteria:

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

Exclusion Criteria:

* The exclusion criteria were as follows: 1) injury in the thigh 6 months previously, 2) diagnosis of any orthopaedic problem or surgery in the lower limbs, 3) back pain or previous surgery in the spine or 4) systemic or neurological disorders.

Primary outcomes:
measure: Modified back-saver sit-and-reach test
timeFrame: Through study completion, an average of 3 weeks.
measure: Distal sensation
timeFrame: Through study completion, an average of 3 weeks.
measure: Force intensity applyed
timeFrame: Through study completion, an average of 3 weeks.
Secondary outcomes:
measure: Perceived sensation
timeFrame: Through study completion, an average of 3 weeks.
Other outcomes:
Locations:
city: Sant Cugat Del Vallès
country: Spain
facility: Universitat Internacional de Catalunya
state: Barcelona
Study officials:
affiliation: Universitat Internacional de Catalunya
name: Carlos L López de Celis, Dr
role: PRINCIPAL_INVESTIGATOR
References: