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

Universidad de Zaragoza16 enrolled

Overview

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.

Study Type

INTERVENTIONAL

Allocation

NON_RANDOMIZED

Purpose

PREVENTION

Masking

NONE

Enrollment

Conditions

Muscle Stretching Exercise

Interventions

Rectus femoris stretchingPROCEDURE

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.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 30 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion criteria: * 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 Exclusion criteria: \- Subjects who have suffered lower limb or back injuries during those last three years

Locations (1)

Cnetro ragonés del Deporte

Zaragoza, Spain