Effect of Reverse Nordic Exercise on Countermovement in Youth Soccer Players | NCT07729085

NCT07729085

Overview

NCT ID: NCT07729085
Lead Sponsor: Universidad de MurciaOTHER
Official Title: Preliminary Effects of Reverse Nordic Exercise on Countermovement Jump Performance in Youth Soccer Players: A Pilot Randomized Controlled Trial
Brief 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

Status and Timeline

Status: Completed
Last Update Posted: Jul 27, 2026Actual
Start Date: Oct 1, 2021Actual
Primary Completion Date: Mar 4, 2022Actual
Completion Date

Participation Criteria

Ages Eligible for Study: Child (0-17)Adult (18-64)
Sexes Eligible for Study: Male
Accepts Healthy Volunteers?: Yes
Eligibility Criteria: Inclusion Criteria:

Between 16 and 18 years old

Soccer Players

Exclusion Criteria:

Pathologies or Musculoskeletal Injuries in the last 6 months

Surgical Interventions in the lower extremities in the last 6 months

Study Plan

Study Type: Interventional
Phase: Not Applicable
Enrollment: 18Actual
Primary Purpose: Basic Science
Allocation: Randomized
Interventional Model: Parallel Assignment
Masking: Single

Contacts and Locations

Central Contacts: No data available
Locations: Universidad Católica San Antonio de Murcia

Similar Studies

Participant Group/Arms

Experimental: Nordic Reverse ProtocolExperimental

The intervention group performed the reverse Nordic exercise or quadriceps drop protocol for four weeks in their training sessions. Participants assigned to the intervention group warm up for approximately 15/20 minutes, consisting of five minutes of continuous running at low speed (approximately 10 km/h), followed by 3 minutes of stretching the lower extremities and three separate progressive sprints. between them with two minutes of rest to finish, then they will carry out the corresponding series and repetitions of the protocol and continue with their usual training.

Procedure: Nordic Reverse Protocol

No Intervention : Usual Training SessionsNo Intervention

The control group did not have any intervention, the participants randomly assigned to this group continued with their usual training sessions.