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OpenTrials
Completed

NCT Number: NCT07695155

Effects of the Copenhagen Plank on Hip Adductor Strength and Countermovement Jump Height in Female Soccer Players

evaluate the effects of a 4-week Copenhagen Plank protocol on hip adductor strength and countermovement jump (CMJ) height in female soccer players and to determine whether adaptations were maintained during a 4-week follow-up.

Completed

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Key information

Conditions

Strength Training Adaptations Soccer Training

Age range

18 year–35 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

MURCIA

Murcia, Spain

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Active federated player, age between 18 and 35 years
  • Absence of lower limb injuries in the 6 months prior to the study.

Treatment and study plan

Copenhagen Plank Exercise Program

Behavioral

Participants performed a progressive Copenhagen Plank exercise program twice weekly for 4 weeks in addition to their regular soccer training. The program started with 2 sets of 8-10 repetitions per side and progressed to 3 sets of 12-15 repetitions per side during the final week. All sessions were supervised by a strength and conditioning coach.

Primary outcomes

  1. Isometric Hip Adductor Strength

    Time frame: Baseline, 4 weeks (post-intervention), and 8 weeks (4-week follow-up)

    Isometric hip adductor strength of the dominant and non-dominant limbs was assessed using a Lafayette handheld dynamometer during the long-lever squeeze test. The highest value of three maximal voluntary isometric contractions was recorded and expressed in Newtons (N).

Secondary outcomes

  1. Countermovement Jump Height

    Time frame: Baseline, 4 weeks (post-intervention), and 8 weeks (4-week follow-up)

    Countermovement jump height was measured using a Chronojump contact platform. Participants performed three jumps with their hands on their hips, and the highest jump height (cm) was recorded.

Sponsors and collaborators

Lead sponsor

Universidad de Murcia

Other

Registry information

Official study title

Effects of the Copenhagen Plank on Hip Adductor Strength and Countermovement Jump Height in Female Soccer Players: A Randomized Controlled Trial

Important dates

Study start
2022
Primary completion
2023
Study completion
2023
First posted
Jul 10, 2026
Registry last updated
Jul 28, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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