Differential Biomechanical Effects of an ACL Injury Prevention Program in Women's Basketball and Soccer Players

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

99 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-05-31

Study Completion Date

2015-11-30

Brief Summary

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Anterior cruciate ligament injury programs are less successful in women's basketball than soccer players, yet the reason for this discrepancy is unknown. Thus, this study will recruit high school aged girl's basketball and soccer players, randomized teams into control and experimental groups, administer an ACL injury prevention program in the experimental group and compare the two groups on their lower extremity biomechanics before and after completion of the program. Biomechanical analyses will help determine the extent to which women's basketball and soccer players respond differently to a uniform injury prevention program, and whether this prevention program provides an adequate stimulus to improve lower extremity biomechanics during basketball-specific tasks.

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Detailed Description

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Anterior cruciate ligament (ACL) injury prevention programs are considerably less successful in women's basketball than women's soccer. Women's basketball and soccer are each characterized by distinct sport-specific demands, where women's basketball players perform significantly more frequent jumping (2- and 1-legged landings) and frontal plane movements than women's soccer players. Despite varying sport-specific demands, ACL injury prevention programs have been uniformly administered in both sports, and emphasize improving high-risk biomechanics during 2-legged sagittal plane tasks. As such, they may not provide the appropriate stimulus to reduce ACL injury risk during the high-risk demands associated with women's basketball. To date, the differential biomechanical adaptations that result from ACL injury prevention programs in women's basketball and soccer have never been investigated.

This study will use a cluster randomized controlled trial using a repeated measures design. Participants will be randomized (by team) in to control and intervention groups. Participants in the control group will be asked to continue their normal daily and athletic activities (practices, games) without participating any distinct injury prevention training. Participants in the intervention group will complete at 6 week ACL injury prevention program previously described in the literature as being effective at reducing ACL injury risk. The prevention program lasts 20-25 minutes in duration and will take place as a warm-up prior to any practice. The frequency will depend solely on the number of practices each team holds throughout the given 6-week time period. A member of the research team plans to be at each intervention session. All participants will complete pre- and post-testing approximately 1 week before the onset and after the completion of the prevention program, respectively. As stated previously, all pre- and post-testing will be performed at the High Point University Human Biomechanics and Physiology Laboratory.

The following are Specific Aims and Hypotheses. Specific Aim 1. To determine the extent to which women's basketball and soccer players employ distinct lower extremity movement strategies during sagittal and frontal plane jump landing tasks.

Hypothesis 1. Prior to training, women's basketball athletes will exhibit no significant differences in high-risk hip and knee kinematics, but will generate higher hip and knee joint moments during jump landing activities than women's soccer players.

Specific Aim 2. To determine the response of women's basketball and soccer athletes to a 6-week ACL injury prevention program, as measured by changes in multi-planar hip and knee biomechanics of jump landings during sagittal and frontal plane jump landing tasks.

Hypothesis 1. After 6 weeks of training, high-risk biomechanics will improve to a larger extent during sagittal plane than frontal plane jump landing tasks.

Hypothesis 2. After 6 weeks of training, there will be no significant differences in biomechanical changes in women's basketball compared to women's soccer players.

Conditions

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Anterior Cruciate Ligament Injury

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Basketball Control

Control group of basketball players

Group Type NO_INTERVENTION

No interventions assigned to this group

Basketball intervention

Intervention group of basketball players

Group Type EXPERIMENTAL

Neuromuscular Prevention Program

Intervention Type OTHER

Participants in the intervention group will complete at 6 week ACL injury prevention program previously described in the literature as being effective at reducing ACL injury risk. The prevention program lasts 20-25 minutes in duration and will take place as a warm-up prior to any practice. The frequency will depend solely on the number of practices each team holds throughout the given 6-week time period.

Soccer Control

Control group of soccer players

Group Type NO_INTERVENTION

No interventions assigned to this group

Soccer Intervention

intervention group of soccer players

Group Type EXPERIMENTAL

Neuromuscular Prevention Program

Intervention Type OTHER

Participants in the intervention group will complete at 6 week ACL injury prevention program previously described in the literature as being effective at reducing ACL injury risk. The prevention program lasts 20-25 minutes in duration and will take place as a warm-up prior to any practice. The frequency will depend solely on the number of practices each team holds throughout the given 6-week time period.

Interventions

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Neuromuscular Prevention Program

Participants in the intervention group will complete at 6 week ACL injury prevention program previously described in the literature as being effective at reducing ACL injury risk. The prevention program lasts 20-25 minutes in duration and will take place as a warm-up prior to any practice. The frequency will depend solely on the number of practices each team holds throughout the given 6-week time period.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Participants will need to be participating in high school aged, competitive-level basketball and/or soccer and are medically cleared to participate in sports.

Exclusion Criteria

* Participants will be excluded if they have a history of lower extremity surgery in the past 6 months, or have been diagnosed with a vestibular, balance, or cardiovascular disorders that may preclude safe participation during landing and jumping activities.

Minimum Eligible Age

12 Years

Maximum Eligible Age

19 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes