Compatibility of Different Injury Prevention Exercises in Athletes

Not Applicable

Completed

• Conditions: Injury Prevention

• Registration Number: NCT02311062
• Lead Sponsor: University of Greenwich

Brief Summary

This investigation is aimed to examine the effects of two different exercise-oriented protocols on the knee torque-angle relationship of the knee flexors.

Thirty two young soccer players were be randomly assigned to three groups: hamstring-eccentric (ECC, n=11), unstable-squatting (UNS, n=11) or control (C, n=10). The ECC and UNS groups performed eighteen sessions over 6 weeks of an injury prevention protocol, using only 3 hamstring-eccentric or unstable-squatting exercises. The angle-torque relationship was measured before and after the training intervention. Voluntary isometric torque was recorded at six test angles, with participants prone (35º-100º; 0º on full extension).

Detailed Description

This study utilized a three parallel-groups randomized controlled design, where 3 between-participant conditions, ECC, UNS and C, were tested. Once considered eligible for the study, all participants were familiarized with the testing procedures. Participants attended the laboratory for a pre-training test session, where body mass, height and muscle functional parameters were recorded. Two days after their pre-test, participants including in ECC or UNS started a 6 weeks (18 sessions) training program while the control group did not perform any type of resistance training.

Nevertheless, during the 6 weeks intervention period all three groups continued with their normal recreationally physical activity consisting in 2 to 3 sessions per week of soccer training or friendly matches. Two days after the end of the intervention period muscle function was re-tested.

Study Timeline

• Study Start: 2012-03
• Primary Completion: 2012-05
• Study Completion: 2012-06
• Study First Submitted: 2014-12-02
• Study First Submitted QC: 2014-12-04
• Study First Posted: 2014-12-08
• Status Verified: 2023-11
• Last Update Submitted: 2023-11-28
• Last Update Posted: 2023-12-05

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 32

Inclusion Criteria

• males, recreationally trained football players
• Read and sign the informed consent

Exclusion Criteria

• Participants that has undertaken a lower body resistance-training program in the preceding 6 months,
• Reported a previous lower limb injury

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
knee torque-angle	1 week	Isokinetic measurements