The Influence of Acute Static Stretching on the Ankle Joint-position Sense of Soccer Players

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

19 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-02-12

Study Completion Date

2024-03-29

Brief Summary

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The aim of this study isto investigate the influence of acute static stretching on the ankle joint position sense of soccer players.

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Detailed Description

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This crossover randomized controlled trial will include semi-professional soccer players. All participants will perform 3 conditions: two experimental conditions, of static stretching of the gastrocnemius and tibialis anterior muscles, for 30 seconds or 90 seconds; and a control condition (rest). Ankle joint position sense of the dominant limb will be assessed before and immediately after the conditions for the range of 20º of plantar flexion by active repositioning, and using a video camera. Absolute, relative and variable angular errors will be 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 Condition

Static stretching of the gastrocnemius and tibialis anterior muscles for 30 seconds

Group Type ACTIVE_COMPARATOR

Static Stretching

Intervention Type OTHER

The static stretching protocol will include the following muscle groups of the dominant lower limb:

* Gastrocnemius - Participants will assume a bipedal position facing a wall. Then, the leg that is not being stretched will be placed forward, with the knee in semi-flexion, and the leg that is being stretched, behind, with the knee in full extension. Instructions will be given in order to keep the calcaneus on the floor;
* Tibialis anterior - Participants will be facing a wall, with the entire foot in touch with the ground and toes pointing forward. Then, they will secure themselves to a handrail and project the hips back.

These stretchings will be held in a position where the participants refer discomfort, and will be maintained for 30 seconds or 90 seconds according to the condition.

Static Stretching of 90 seconds Condition

Static stretching of the gastrocnemius and tibialis anterior muscles for 90 seconds

Group Type ACTIVE_COMPARATOR

Static Stretching

Intervention Type OTHER

The static stretching protocol will include the following muscle groups of the dominant lower limb:

* Gastrocnemius - Participants will assume a bipedal position facing a wall. Then, the leg that is not being stretched will be placed forward, with the knee in semi-flexion, and the leg that is being stretched, behind, with the knee in full extension. Instructions will be given in order to keep the calcaneus on the floor;
* Tibialis anterior - Participants will be facing a wall, with the entire foot in touch with the ground and toes pointing forward. Then, they will secure themselves to a handrail and project the hips back.

These stretchings will be held in a position where the participants refer discomfort, and will be maintained for 30 seconds or 90 seconds according to the condition.

Interventions

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Static Stretching

The static stretching protocol will include the following muscle groups of the dominant lower limb:

* Gastrocnemius - Participants will assume a bipedal position facing a wall. Then, the leg that is not being stretched will be placed forward, with the knee in semi-flexion, and the leg that is being stretched, behind, with the knee in full extension. Instructions will be given in order to keep the calcaneus on the floor;
* Tibialis anterior - Participants will be facing a wall, with the entire foot in touch with the ground and toes pointing forward. Then, they will secure themselves to a handrail and project the hips back.

These stretchings will be held in a position where the participants refer discomfort, and will be maintained for 30 seconds or 90 seconds according to the condition.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

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

Exclusion Criteria

* those with cardiorespiratory, vestibular or neurological diseases
* with bone or joint deformities in the lower limb
* cerebral concussion in the last 3 months
* history of lower limb surgery
* those with positive ankle integrity tests (anterior drawer test, talus tilt test and external rotation stress test)

Minimum Eligible Age

18 Years

Maximum Eligible Age

30 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes