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

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

16 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-02-15

Study Completion Date

2020-04-30

Brief Summary

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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.

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Detailed Description

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Conditions

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Muscle Stretching Exercise

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Control

5 minutes waiting time

Group Type NO_INTERVENTION

No interventions assigned to this group

Stretching

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

Group Type EXPERIMENTAL

Rectus femoris stretching

Intervention Type 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.

Interventions

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Rectus femoris stretching

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.

Intervention Type PROCEDURE

Eligibility Criteria

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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