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Effect of Reverse Nordic Exercise on Countermovement in Youth Soccer Players

NCT07729085 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 18

Last updated 2026-07-27

No results posted yet for this study

Summary

This pilot randomized controlled trial aims to evaluate the preliminary effects and feasibility of a four-week Reverse Nordic Exercise program on countermovement jump performance in youth soccer players during the competitive season. Participants are randomly allocated to either a Reverse Nordic Exercise group, which performs a progressive eccentric quadriceps training program in addition to regular soccer training, or a control group that continues usual training. Countermovement jump performance is assessed before and after the intervention to estimate potential treatment effects and inform the design of a future fully powered randomized controlled trial.

Conditions

  • Strength Training Effects

Interventions

PROCEDURE

Nordic Reverse Protocol

The participant begins on their knees, with the trunk upright and fully aligned. At this moment, the soccer player slowly leans back, maintaining the starting position by means of a controlled flexion of the knees. This fall is executed at the lowest speed possible to maximize muscle load in the eccentric phase and reach the point of maximum flexion.

Sponsors & Collaborators

  • Universidad de Murcia

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
SINGLE
Model
PARALLEL

Eligibility

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

Timeline & Regulatory

Start
2021-10-01
Primary Completion
2022-03-04
Completion
2022-04-04

Countries

  • Spain

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 NCT07729085 on ClinicalTrials.gov