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How Eccentric Closed Chain Training Affects Knee Strength and Muscle Properties in Soccer Players

NCT06987344 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 24

Last updated 2025-05-29

No results posted yet for this study

Summary

The goal of this study is to learn whether a 6-week lower-body training program using closed kinetic chain (CKC) exercises with slow, controlled movements (called "eccentric time under tension") can improve leg muscle strength and muscle-tendon viscoelastic properties in male university soccer players.

The Main Questions Are:

1. Does this type of training improve knee strength?
2. Does it change the way muscles and tendons respond to movement or pressure?

What Will Participants Do?

1. Join one of two groups: one does the CKC training program, the other continues regular soccer training
2. Train twice a week for 6 weeks
3. Have their leg strength tested using special equipment
4. Have their muscle and tendon properties measured with a handheld device

Conditions

  • Healthy

Interventions

OTHER

Field-based closed kinetic chain exercise with progressively increased time under tension

This intervention is uniquely characterized by the integration of field-based closed kinetic chain (CKC) exercises with a systematically increased eccentric time under tension (TUT), specifically tailored for university-level soccer players. Unlike conventional strength training protocols, which are often gym-based and rely on traditional resistance machines or free weights, this program emphasizes functional, sport-specific movement patterns performed on the field, enhancing ecological validity and transfer to soccer performance.

OTHER

Regular soccer training routines

Trained three times a week: two days were dedicated to functional and tactical on-field training, while the third day was reserved for a two-hour gym session focused on flexibility, muscular strength, and endurance development.

Sponsors & Collaborators

  • University of Americas

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
25 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-01-06
Primary Completion
2025-03-28
Completion
2025-03-31

Countries

  • Chile

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06987344 on ClinicalTrials.gov