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Completed

NCT Number: NCT06320977

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

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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Key information

Conditions

Healthy

Age range

18 year–30 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Escola Superior de Saúde Fernando Pessoa

Porto, 4200-253, Portugal

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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)

Treatment and study plan

Static Stretching

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.

Primary outcomes

  1. Absolute angular error

    Time frame: Change from Baseline (Before) to Immediately after interventions or control (After)

    The absolute value of the difference between the target range and the achieved range

  2. Relative angular error

    Time frame: Change from Baseline (Before) to Immediately after interventions or control (After)

    The arithmetic difference between the target range and the range achieved

  3. Variable angular error

    Time frame: Change from Baseline (Before) to Immediately after interventions or control (After)

    The standard deviation of the 3 repositionings

Sponsors and collaborators

Lead sponsor

University Fernando Pessoa

Other

Registry information

Official study title

The Influence of Acute Static Stretching on the Ankle Joint-position Sense of Soccer Players: a Randomized Controlled Trial

Important dates

Study start
2024
Primary completion
2024
Study completion
2024
First posted
Mar 20, 2024
Registry last updated
Apr 9, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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