Can a Strength and Technique Intervention Reduce Knee Abduction Moment in Young Female Handball Players

NCT05643261 | Unknown DMC

• 1 other identifier: Søknad 233 - 160622
• Study Type: interventional
• Target: 50
• Locations: 1 country
• Sites: 1

Brief Summary

Anterior cruciate ligament (ACL) injury constitutes the largest problem in female elite ball/team sport today, due to its relatively high incidence and serious short- and long-term consequences. Especially in handball, these injuries typically occur in actions that are essential for the game, i.e. landings and cutting maneuvers, imposing a challenge for risk reduction strategies. Although knowledge about risk factors is constantly increasing and ACL injury prevention programs have been successful in reducing injuries in rigorous scientific study settings, the real-world injury incidence remains high, and even continues to increase. The purpose of this explorative intervention study is to assess the effect of an eight-week strength and technique training in female handball players and its influence on ACL-specific risk factors, especially knee abduction moment (KAM). The results are compared with a control group that did not do the specially designed technique/muscle training.

Conditions

ACL Injury

Keywords

ACL injury prevention; Biomechanics; Sidestep cutting; Strength training

Outcome Measures

Primary Outcomes (1)

• Knee Abduction Moment (KAM)

  Peak Knee Abduction Moment (KAM) within the first 100ms after initial contact (IC) of the foot. A known risk factor for ACL injury.

  Baseline, second testing 8-10 weeks later

Secondary Outcomes (4)

• Cutting technique factors. These may affect the main outcome variable, but also performance

  Baseline, follow-up 8-10 weeks later

• Strength factors. These may affect the main outcome variable, but also performance

  Baseline, follow-up 8-10 weeks later

• Performance in a timed run-and-cut task. Run 5 m forward, turn 180 degrees and run back 5 m.

  Baseline, follow-up 8-10 weeks later

• Player/trainer knowledge and motivation, implementation likelihood

  2-3 months after the follow-up

Study Arms (2)

Intervention group

EXPERIMENTAL

All players in the intervention group will complete the targeted muscle and technique training integrated into their handball training. There will be a training of the coaches on site, who assess the training of the intervention group during the entire period and document the participation of the players accordingly.

Other: Muscle and technique training

Control group

NO INTERVENTION

Players in the control group only continue their regular handball training.

Interventions

Muscle and technique training OTHER

The strength training consists of three exercises (clam shell, side plank, calf raises) with an progressive overload after two to three weeks to ensure a continuous muscle stimulation. The technique training consists of different cutting variations with a focus on forefoot landings and conscious control of the knee to avoid high knee valgus movement and KAM respectively.

Intervention group

Eligibility Criteria

• Age: 15 Years - 18 Years
• Gender Eligibility Details: ACL injury risk is higher in female handball players. Therefore the investigators want to investigate especially this vulnerable group.
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• Female handball players between the ages of 15 and 18 who go to a sports school in Oslo
• Consent by the players, in the case of age below 16 years by their parents
• Match fitness on test day

You may not qualify if:

• \- History of ACL injury in the last 6 months before baseline testing

Sponsors & Collaborators

• Norges idrettshøgskole: lead

Study Sites (1)

Norwegian School of Sport Sciences

Oslo, 0806, Norway

Location

Related Publications (27)

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MeSH Terms

Conditions

Anterior Cruciate Ligament Injuries

Condition Hierarchy (Ancestors)

Knee Injuries; Leg Injuries; Wounds and Injuries

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: NONE
• Masking Details: The allocation to intervention or control groups is not random, but separated according to sports schools. This is the only way to ensure that there is no overlapping of training.
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor Tron Krosshaug PhD

Model Details: All players in the intervention group will complete the targeted muscle and technique training integrated into their handball training, while players in the control group only continue their regular handball training. There will be a training of the coaches on site, who assess the training of the intervention group during the entire period and document the participation of the players accordingly.The strength training consists of three exercises (clam shell, side plank, calf raises) with an progressive overload after two to three weeks to ensure a continuous muscle stimulation. The technique training consists of different cutting variations with a focus on forefoot landings and conscious control of the knee to avoid high knee valgus movement and KAM respectively.

Study Record Dates

• First Submitted: November 21, 2022
• First Posted: December 8, 2022
• Study Start: August 15, 2022
• Primary Completion: November 30, 2022
• Study Completion: November 30, 2022
• Last Updated: December 8, 2022

Record last verified: 2022-12

Data Sharing

• IPD Sharing: Will not share

Locations

NO (1)