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Clinical Trials/NCT04021576
NCT04021576CompletedNot Applicable

Fitness- and Health-related Effects of a Sports Injury Prevention Program in Competitive Alpine Skiers

Balgrist University Hospital1 site in 1 country129 target enrollmentStarted: October 1, 2017Last updated:
Conditions
Interventions

Trial Snapshot

Phase
Not Applicable
Status
Completed
Sponsor
Enrollment
129
Locations
1
Primary Endpoint
Change from baseline to 12 months axis-stability

Study Overview

Brief Summary

Overall Goal: Elaboration of an evidence-based, national prevention strategy to protect the health of competitive alpine skiers, with a particular focus on youth athletes.

Background: Competitive alpine skiing has a relatively high injury risk. 60% of all athletes suffer from a severe knee injury in the early stages of their career, and 20% struggle with recurrent overuse problems of the knee and lower back.

Research Aims: (1) to investigate the effects of a 12-month sports injury prevention program on training attitudes, eccentric hamstring strength, leg axis-/hip-/core-stability and general fitness in competitive alpine skiers; (2) to assess the effectiveness the aforementioned prevention program to lower the occurring health problems in competitive alpine skiers; (3) to identify different pain conditions (knee, back, no pain) based on data measured with smartphones; and (4) to investigate the agreement of self-reported questionnaire data with measured smartphone data and pain as an affecting factor.

Methods: 12-month intervention a sports injury prevention program, a prospective health- and training/activity-monitoring, as well as assessments of eccentric hamstring strength, leg axis/hip/core stability and general fitness at baseline and follow-up.

Detailed Description

The primary objectives of this study are:

  1. to investigate the effects of a sports injury prevention program on train-ing attitudes, eccentric hamstring strength, leg axis-/hip-/core-stability and general fitness in competitive alpine skiers;
  2. to assess the effectiveness the prevention program to lower the occur-ring health problems (i.e. traumatic injuries, overuse injuries and illnesses) in competitive alpine skiers.

The secondary objectives of this study are: 3. to investigate the agreement between self-reported questionnaire data with unobtrusively measured smartphone data (i.e. sensor-based activity data) to monitor the prevention program; 4. to identify athletes at risk for developing pain and injury based on digitally acquired data (questionnaires and activity sensor data).

The primary study outcomes are the changes in training attitudes, maximal eccentric hamstring strength, leg axis-/hip-/core-stability, general fitness-related factors and the occurring health problems in competitive youth alpine skiers over a 12-month intervention period. These outcomes are assessed by established methods of strength testing, neuromuscular screening, and load- and health-monitoring.

The secondary outcome is a smartphone enabled training and injury prevention program for skiing athletes.

Study Design

Study Type
Interventional
Allocation
Non Randomized
Intervention Model
Sequential
Primary Purpose
Prevention
Masking
None

Eligibility Criteria

Ages
13 Years to 36 Years (Child, Adult)
Sex
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • •competitive athletes that are part of a Swiss-Ski development program
  • •Written informed consent by the participant (or parents)

Exclusion Criteria

  • •No written informed consent

Arms & Interventions

intervention

Experimental

preventative training program

Intervention: preventative training program (Other)

control

No Intervention

no such training

Outcomes

Primary Outcomes

Change from baseline to 12 months axis-stability

Time Frame: assessed before and after a 12-month preventative training intervention

assessed by biomechanical measurement technology

Change from baseline to 12 months general fitness-related factors

Time Frame: assessed before and after a 12-month preventative training intervention

quantified by the Swiss-Ski Power Test (incl. the tasks "swiss cross", "push up", "5-jump", "standing long jump", "twist test", "obstacle course", "high box jump" and "12' run")

Change from baseline to 12 months hip-stability

Time Frame: assessed before and after a 12-month preventative training intervention

assessed by biomechanical measurement technology

Change from baseline to 12 months maximal eccentric hamstring strength

Time Frame: assessed before and after a 12-month preventative training intervention

tested by using the NordBord

Change from baseline to 12 months core-stability

Time Frame: assessed before and after a 12-month preventative training intervention

assessed by biomechanical measurement technology

occurring health problems

Time Frame: 2-weekly

Oslo Sports Trauma Research Centre (OSTRC) overuse injury questionnaire

Secondary Outcomes

  • smartphone enabled training and injury prevention program(during 12-month preventative training intervention)

Investigators

Sponsor
Balgrist University Hospital
Sponsor Class
Other
Responsible Party
Principal Investigator
Principal Investigator

Joerg Spoerri

Principal Investigator

Balgrist University Hospital

Study Sites (1)

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