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CompletedNCT04363398Updated Apr 27, 2020

Prevention of Patellar and Achilles Tendinopathies in Youth Basketball

An interventional study of Comprehensive Follow-up and Standard Follow-up in Injury, Knee, Injury, Ankle and Tendinopathy, sponsored by Sport Injury Prevention Research Centre. Completed at 1 site in Canada. Open to participants aged 11 Years to 18 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-04-27.

Sponsored by Sport Injury Prevention Research Centre · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Registered 1 year 8 months after the study started (first participant enrolled Aug 2016, registered Apr 2018).
Phase
Not applicable
Study type
Interventional
Enrollment
441
Allocation
Randomized
Ages
11 Years to 18 Years
Sex
All
01

Study summary

This study seeks to determine the prevalence of knee and ankle tendinopathies in youth basketball players, as well as determine the efficacy of a Basketball specific Neuromuscular training warm-up in reducing injuries.

Read the detailed description
  1. BACKGROUND \& RATIONALE Basketball is one of the most popular youth sports in the United States and Canada. Knee and ankle injuries are the most common injuries in youth basketball (40%). Patellar and Achilles tendinopathies (PATs) are of particular concern in elite level basketball with a prevalence of 32% for patellar tendinopathy in elite male athletes (60% career prevalence). The risk for injury may be initiated in youth basketball where overuse injury incidence increases with age. Previously reported PAT injury rates likely underestimate the burden of overuse injury in youth basketball as current surveillance guidelines are optimized for acute injury and there are no guidelines on appropriate tendinopathy diagnosis in youth athletes. Current knowledge on basketball-related injuries (acute and overuse) in adolescent athletic community is sparse. Jump loads, landing mechanics, joint morphology and tendon structure changes may be predictive of tendinopathy. However, their consequences on PAT risk in basketball remain to be investigated using prospective cohort study methodologies. Encouragingly, the potential for mediating injury risk in youth sport through neuromuscular training programs has been demonstrated. A basketball specific neuromuscular training program (BSpecNMT) in turn may be efficacious for primary PAT prevention. Clearly, there is an urgent need to advance the current state of injury surveillance, prevention programs, sport-specific risk factors for PATs and structural consequences of PATs in youth basketball.
  2. RESEARCH OBJECTIVES Primary Objectives 1) To quantify the prevalence and severity of patellar and Achilles tendinopathies and assess associated risk factors in youth basketball (Year 1); and 2) To evaluate the efficacy of a BSpecNMT program in reducing patellar and Achilles tendinopathies and all injuries in youth basketball players (Year 2 and 3).
  3. METHODS A Hybrid (effectiveness-implementation) Type 2 RCT design will be conducted. Teams will be randomized into either a comprehensive or standard intervention delivery group. All coaches will attend one pre-season coach workshop for the basketball specific neuromuscular (BSpecNMT) warm-up program. The workshop was led by a physiotherapist, athletic trainer, or strength and conditioning coach before the start of the season. During the pre-season coach workshop, coaches will take part in a theoretical and practical session about basketball injury prevention and warm-up exercises. Coaches in the both study groups will be instructed to carry out the 10-minute warm-up program at the beginning of all training sessions.

In addition, the comprehensive intervention group will receive weekly visits at team practices from a research physiotherapist, athletic trainer, or strength and conditioning coach. These visits will provide the team guidance with the BSpecNMT warm-up to facilitate proper technique and appropriate progression of the BSpecNMT warm-up exercises.

All teams will have their adherence to the BSpecNMT recorded on a weekly basis by a Team Designate. In addition, injuries will be prospectively monitored through a weekly self-report questionnaire, a post-season questionnaire (completed by players) and injury report form (completed by team designates). Also, Coaches' knowledge and attitudes to injury prevention will be registered by surveys during the pre-season, post-workshop, post-season, 6-month post-season, and 12-month post-season timepoints.

02

Conditions studied

  • Injury, Knee
  • Injury, Ankle
  • Tendinopathy
  • Sports Injuries in Children
03

In context

Knee Injuries

267 studies on the registry are indexed under Knee Injuries; 59 are open to participants now.

This study's enrollment of 441 is above the median of 49 across 178 interventional studies indexed under Knee Injuries.

Browse Knee Injuries studies →

Lead sponsor

Sport Injury Prevention Research Centre is the lead sponsor of 12 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
11 Years to 18 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Plays competitive basketball with School or club

Exclusion criteria

Exclusion Criteria:

  • Injured at baseline
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
441 participants (actual)

Study arms

  • Experimental
    Comprehensive

    Coaches from schools randomized to the comprehensive follow-up receive a workshop outlining a neuromuscular training program to be used as a warm-up for 10 minutes at the beginning of each basketball practice and game. Throughout the season, a trained research team member will monitor the team weekly for injuries, participation, and adherence, and provide support to the school coaches regarding the warm-up.

    Other: Comprehensive Follow-up

  • Active comparator
    Standard

    Coaches from schools randomized to the standard follow-up receive a workshop outlining a neuromuscular training program to be used as a warm-up for 10 minutes at the beginning of each basketball practice and game. Throughout the season, a research team member will monitor the team weekly for injuries, participation, and adherence, however will not provide support to the school coaches regarding the warm-up.

    Other: Standard Follow-up

Interventions

  • OtherComprehensive Follow-up

    Trained research staff members will provide weekly support to coaches on the NMT warm-up.

  • OtherStandard Follow-up

    Research staff will monitor teams weekly, however no additional support for warm-up will be provided.

06

What researchers measure

Primary outcomes

  1. Basketball injuries

    To effectively capture all injuries (i.e., acute and overuse/chronic injuries), an "all-complaint" injury definition will be adopted through year 1 and year 2 of study. An injury is any physical complaint, including any pain, ache, joint instability, stiffness or any other complaint resulting from participating in basketball-related sessions, including but irrespective of the need for medical attention (seeking care from a trainer or medical practitioner) or time-loss (inability to complete a basketball-related session, or participate in one or more days after the onset of injury) from basketball-related activities. Further, an injury is identified as acute if its onset was sudden and clearly associated with an identifiable event and overuse if its onset, whether gradual or sudden, was unidentifiable with any event.

    Time frame: Medical attention injuries daily, additional injuries weekly and a post-season interview at 4 months if needed.

  2. Weekly Exposure Sheet (WES)

    The duration of time players are exposed to basketball, and the basketball NMT program, will be captured. This will be captured using a previously validated Weekly Exposure Form (WES). This includes start and end time of sport sessions, attendance at those sessions, and reason for non-attendance.

    Time frame: This will be recorded weekly during the basketball season (average 4 months)

Secondary outcomes

  1. Player Questionnaire

    Injury history, demographics, medical history

    Time frame: This measure will be assess at baseline (pre-season) and end of the basketball season (average 4 months after baseline)

  2. Coach Beliefs/Behaviors

    Coach knowledge, experiences, attitudes and beliefs of the coach related to injury prevention and the neuromuscular training program will be assessed through a previously validated Health Action Process Approach questionnaire adapted in previous studies in a similar setting

    Time frame: The questionnaire will be administered to team coaches at 4 different time-points - Pre-workshop at baseline, post workshop at baseline, post-season at 4 months, post-season follow-up at 6 months and post-season follow-up at 12 months.

07

Study locations

1 site
  • Sport Injury Prevention Research Centre
    Calgary, Alberta T2n1n4, Canada
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Aug 2016 to primary completion in Jul 2018, 23 months.

Of 94 non-industry interventional studies with no phase under Knee Injuries, half reached primary completion within 21 months of starting (the median), counting those still running; a quarter within 8 and three quarters within 51. This study's 23 months is close to that.

Counting every sponsor, half of 99 studies reached it within 20 months; a quarter within 8 and three quarters within 51.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 27, 2018
First posted
Apr 27, 2020
StartActual
Aug 10, 2016
Primary completionActual
Jul 31, 2018
CompletionActual
Jul 31, 2019
Last update
Apr 27, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 27, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04363398
Lead sponsor
Sport Injury Prevention Research Centre
Collaborators
General Electric, National Basketball Association
Responsible party
Carolyn Emery (Professor, Sport Injury Prevention Research Centre) — Principal investigator
First posted
Apr 27, 2020
Start date
Aug 10, 2016
Primary completion
Jul 31, 2018
Completion
Jul 31, 2019
Last update
Apr 27, 2020

Study contacts

Carolyn Emery, PT, PhD
principal investigator · Sport Injury Prevention Research Centre, University of Calgary

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Apr 2020. You cannot join it, but the record below documents what was studied.

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