Relation Between Rectus Femoris Muscle Tension and Hamstring Strength and Activity in Healthy Sprinters

NCT04344691 | Unknown

• 1 other identifier: 2020-001
• Study Type: interventional
• Target: 16
• Locations: 1 country
• Sites: 1

Brief Summary

An open-label, single-group, control, pretest-posttest clinical trial is going to be conducted, with 16 healthy sprinters. Rectus femoris length and hamstring strength and electromyography is going to be assessed at baseline, after 10 minutes control and after an static rectus femoris stretching technique. The main objective is to register if an increase in rectus femoris stretching Range of Motion, increases hamstring strength and activity due to their antagonic relationship and their relation with pelvic tilt.

Conditions

Muscle Stretching Exercise

Keywords

muscle length; strength; sprint

Outcome Measures

Primary Outcomes (3)

• Rectus femoris length

  Knee flexion range of motion with inclinometer

  Inmediate after intervention; up to 10 minutes

• Biceps femoris strength

  Dynamometry

  Inmediate after intervention; up to 10 minutes

• Gluteus maximus strength

  Dynamometry

  Inmediate after intervention; up to 10 minutes

Secondary Outcomes (3)

• Rectus femoris tensomyography

  Inmediate after intervention; up to 10 minutes

• Pelvic anteversion

  Inmediate after intervention; up to 10 minutes

• Sprint muscle activity

  Inmediate after intervention; up to 10 minutes

Study Arms (2)

Control

NO INTERVENTION

5 minutes waiting time

Stretching

EXPERIMENTAL

Rectus femoris static stretching during 90' (with three hold-relax progressions until final ROM)

Procedure: Rectus femoris stretching

Interventions

Rectus femoris stretching PROCEDURE

Patient lying prone with the non-implicated leg outside the treatment table resting on the floor. Physical therapist flexes patients knee until tension is felt. In that position 5 seconds' isometric contraction is asked and physical therapist progresses in knee flexion range of motion until new tension is felt. After three contract-relax procedures physical therapist holds the range of motion for 30 seconds.

Stretching

Eligibility Criteria

• Age: 18 Years - 30 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• The athletes recruited have to be under regular training and competition
• Free of any symptoms, at least 3 days training weekly for the last three years
• Give written consent

You may not qualify if:

• \- Subjects who have suffered lower limb or back injuries during those last three years

Sponsors & Collaborators

• Universidad de Zaragoza: lead

Study Sites (1)

Cnetro ragonés del Deporte

Zaragoza, 50018, Spain

Location

Study Officials

• Alazne Ruiz de Escudero Zapico, PhD

  Universidad Pública de Navarra

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Study Record Dates

• First Submitted: April 7, 2020
• First Posted: April 14, 2020
• Study Start: February 15, 2020
• Primary Completion: February 25, 2020
• Study Completion: April 30, 2020
• Last Updated: April 16, 2020

Record last verified: 2020-04

Data Sharing

• IPD Sharing: Will share
• Shared Documents: SAP, ICF, CSR
• Time Frame: Starting 6 months after publication
• Access Criteria: Principal investigator will review requests and criteria for reviewing requests will be individually assessed

Locations

ES (1)