PNF Stretching Compared to SMR on Hamstrings

Sports Physical Therapy Clinical Trial

Official title:

Effects of Hamstrings Flexibility After Proprioceptive Neuromuscular Facilitation Stretching Compared to Self-myofascial Release: a Randomized Controlled Trial

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT05134883
• Other study ID #: PNF_01
• Status: Active, not recruiting
• Phase: N/A
• Start date: October 5, 2021
• Est. completion date: January 30, 2022

Study information

• Verified date: November 2021
• Source: Universitat Internacional de Catalunya
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The use of stretching techniques in the sports world is frequent and widely used for its many effects. One of the main benefits is the gain in flexibility, range of motion and facilitation of the sporting performance. Recently the use of self-myofascial release (SMR) has spread in sports practice both at elite and recreational level for its benefits being similar to those observed in stretching. The objective of the following study is to compare the results of the proprioceptive neuromuscular facilitation stretching with SMR on the hamstring muscle flexibility.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 80
• Est. completion date: January 30, 2022
• Est. primary completion date: October 25, 2021
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 60 Years

Eligibility

Inclusion Criteria:

-

Exclusion Criteria:

• hypermobility

• hamstring injury in the previous 6 months

• diagnosed orthopedic problems

• surgery in the lower limbs

• back pain

• spine surgery

• systemic or neurological disorders.

Related Conditions & MeSH terms

• Sports Physical Therapy

Intervention

Other:
• PNF
A PNF stretching protocol will be performed with each participant assuming a long sitting position on a plinth with the knee maintained as extended as possible. At this moment, the participant will be asked to perform a maximum isometric hamstring muscle contraction for 5 seconds followed by 5 seconds of relaxation and 20 seconds of stretching. The therapist will show the participant how to maintain this isometric contraction with the flexion of the hip and ankle. Each participant will undergo 4 repetitions of PNF stretching (30 seconds/rep).
• SMR
For the application of self-myofascial release, the subjects will assume a long sitting position on a firm and even surface by placing the arms backward and transferring their body weight to their palms. The roller foam, applied bilaterally, will be placed under the hamstrings and slowly moved back and forth from the ischial tuberosity to the popliteal fossa by applying pressure for 2 minutes.

Locations

Country	Name	City	State
Spain	Universitat Internacional Catalunya	Barcelona	Sant Cugat

Sponsors (1)

Lead Sponsor	Collaborator
Universitat Internacional de Catalunya

Country where clinical trial is conducted

Spain, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Hamstring muscle flexibility (mm)	Evaluated with a modified sit-and-reach test (MSR). The participants sit on the floor with their lower limbs stretched out and together, their backs and hips are supported against the wall (90° hip flexion), and the soles of their feet are placed against the edge of a box. Participants then extended their arms forward, placing the same hand on top of the other with both hands facing down. During this, they keep their backs against the wall. They then reach forward, sliding their hands along the measuring scale as far as possible without bending their knees	Change between baseline(immediately before intervention), mid-intervention (30 seconds after the start of the intervention) and post intervention (2 minutes after the start of the intervention)
Secondary	Discomfort sensation	Measured using the Borg rating of perceived exertion scale (RPE). The participants will be asked at the end of the intervention to give a number from 1 to 10, where 1 is the easiest and 10 the hardest.	Change between baseline(immediately before intervention), mid-intervention (30 seconds after start of intervention) and post intervention (2 minutes after the start of the intervention)