Effect of Reverse Nordic Exercise on Vertical Jump in Youth Soccer Players

Universidad de Murcia

Status: Completed

Conditions: Strength

Treatments: Procedure: Nordic Reverse Protocol

Study type: Interventional

Funder types: Other

Identifiers

NCT06086158

TFM2022

Details and patient eligibility

About

BACKGROUNDː The reverse nordic hamstring exercise is developed for the eccentric work of the rectus femoris. After performing Nordic exercise protocol (its original), the relationship between increased eccentric hamstring strength, improvements in sprint capacity and reduced incidence of injuries can be confirmed. The review of evidence, led us propose the relationship and the possible benefits that could exist in the performance of four weeks of reverse nordic exercise protocol and the vertical jump, measured with countermovement jump test (CMJ) on a platform of jump.

METHODSː An open randomized controlled trial was conducted, with an intervention and control group, to which they were randomly assigned. The sample was made of 19 players from the San Antonio de Murcia Catholic University Team in the youth A category, aged between 16 and 18 years old. The experimental group (n=10) performed the reverse nordic hamstring exercise protocol for four weeks, in addition to the usual training that they shared with the control group (n=9). Data collection for the CMJ test was done before starting the protocol and immediately after finishing it for all participants. Statistical analysis was carried out with the SPSS program.

Enrollment: 19 patients

Sex: Male

Ages: 16 to 18 years old

Volunteers: Accepts Healthy Volunteers

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

Trial design

Primary purpose: Basic Science

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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19 participants in 2 patient groups

Nordic Reverse Protocol

Experimental group

Description:

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.

Treatment:

Procedure: Nordic Reverse Protocol

Usual Training Sessions

No Intervention group

Description:

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