Acute Effects of Static Stretching on the Knee Joint Position Sense of Soccer Players

NCT ID: NCT06691373

Last Updated: 2024-11-15

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

COMPLETED

Clinical Phase

NA

Total Enrollment

17 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-05-02

Study Completion Date

2023-07-31

Brief Summary

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The aim of this study was to investigate the acute effects of static stretching on the knee joint-position sense of soccer players.

Detailed Description

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This crossover randomized controlled trial included male soccer players. All participants performed 3 conditions: two experimental conditions, of static stretching of the quadriceps and hamstrings muscles, for 30 or 90 seconds; and a control condition (rest). Knee joint-position sense of the dominant limb was assessed before and immediately after the conditions for the range of 45º of knee flexion by active repositioning, using a video camera. Absolute, relative and variable angular errors were calculated.

Conditions

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Healthy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

HEALTH_SERVICES_RESEARCH

Blinding Strategy

NONE

Study Groups

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Control Condition

5-minute rest

Group Type NO_INTERVENTION

No interventions assigned to this group

Static Stretching of 30 seconds

Static stretching of the quadriceps and hamstrings for 30 seconds

Group Type ACTIVE_COMPARATOR

Static Stretching

Intervention Type OTHER

Static stretching of the quadriceps and hamstrings which was performed in the dominant limb, and held in a position where the participants referred discomfort:

* Quadriceps - participants were in the standing position, with one hand holding the back of a chair to maintain the balance, and were instructed to pull the ankle of the lower limb to be stretched, pressing the heel towards the buttocks and, at the same time, extending the thigh;
* Hamstrings - participants were also in the standing position, with the heel resting on a chair. They were then instructed to lean the body forward keeping the spine erect and the pelvis in anteversion, to obtain a stretch over the knee and hip.

Static Stretching of 90 seconds

Static stretching of the quadriceps and hamstrings for 90 seconds

Group Type ACTIVE_COMPARATOR

Static Stretching

Intervention Type OTHER

Static stretching of the quadriceps and hamstrings which was performed in the dominant limb, and held in a position where the participants referred discomfort:

* Quadriceps - participants were in the standing position, with one hand holding the back of a chair to maintain the balance, and were instructed to pull the ankle of the lower limb to be stretched, pressing the heel towards the buttocks and, at the same time, extending the thigh;
* Hamstrings - participants were also in the standing position, with the heel resting on a chair. They were then instructed to lean the body forward keeping the spine erect and the pelvis in anteversion, to obtain a stretch over the knee and hip.

Interventions

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Static Stretching

Static stretching of the quadriceps and hamstrings which was performed in the dominant limb, and held in a position where the participants referred discomfort:

* Quadriceps - participants were in the standing position, with one hand holding the back of a chair to maintain the balance, and were instructed to pull the ankle of the lower limb to be stretched, pressing the heel towards the buttocks and, at the same time, extending the thigh;
* Hamstrings - participants were also in the standing position, with the heel resting on a chair. They were then instructed to lean the body forward keeping the spine erect and the pelvis in anteversion, to obtain a stretch over the knee and hip.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* male soccer players
* aged between 18 and 30 years old
* with normal knee range of motion
* without history of lower limb injuries in the last 6 months

Exclusion Criteria

* history of knee surgery
* with cardiorespiratory, neurological or vestibular diseases
* with positive knee integrity tests (anterior drawer, posterior drawer, Lachman test and valgus and varus stress tests)
* using drugs that could affect the central nervous system, balance, or motor control (sedatives, anxiolytics, analgesics, NSAIDs, muscle relaxants, or antibiotics).
Minimum Eligible Age

18 Years

Maximum Eligible Age

30 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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University Fernando Pessoa

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Escola Superior de Saúde Fernando Pessoa

Porto, , Portugal

Site Status

Countries

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Portugal

Other Identifiers

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ESS/FSA - 391/23-3

Identifier Type: -

Identifier Source: org_study_id

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