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

Not Applicable

Completed

• Conditions: Healthy

• Registration Number: NCT06691373
• Lead Sponsor: University Fernando Pessoa

Brief Summary

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

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.

Study Timeline

• Study Start: 2023-05-02
• Primary Completion: 2023-07-28
• Study Completion: 2023-07-31
• Status Verified: 2024-11
• Study First Submitted: 2024-11-13
• Study First Submitted QC: 2024-11-13
• Last Update Submitted: 2024-11-13
• Study First Posted: 2024-11-15
• Last Update Posted: 2024-11-15

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 17

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).

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Primary Outcome Measures

Name	Time	Method
Absolute angular error	Change from Baseline (Pre) to Immediately after interventions or control (Post)	The absolute value of the difference between the target range and the achieved range
Relative angular error	Change from Baseline (Pre) to Immediately after interventions or control (Post)	The arithmetic difference between the target range and the range achieved
Variable angular error	Change from Baseline (Pre) to Immediately after interventions or control (Post)	The standard deviation of the 3 repositionings

Trial Locations

Locations (1)

Escola Superior de Saúde Fernando Pessoa; 🇵🇹 Porto, Portugal