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

NCT04021576 | Completed

• 1 other identifier: ISPA
• Study Type: interventional
• Target: 129
• Locations: 1 country
• Sites: 1

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.

Conditions

Athletics

Outcome Measures

Primary Outcomes (6)

• Change from baseline to 12 months maximal eccentric hamstring strength

  tested by using the NordBord

  assessed before and after a 12-month preventative training intervention

• Change from baseline to 12 months axis-stability

  assessed by biomechanical measurement technology

  assessed before and after a 12-month preventative training intervention

• Change from baseline to 12 months hip-stability

  assessed by biomechanical measurement technology

  assessed before and after a 12-month preventative training intervention

• Change from baseline to 12 months core-stability

  assessed by biomechanical measurement technology

  assessed before and after a 12-month preventative training intervention

• Change from baseline to 12 months general fitness-related factors

  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")

  assessed before and after a 12-month preventative training intervention

• occurring health problems

  Oslo Sports Trauma Research Centre (OSTRC) overuse injury questionnaire

  2-weekly

Secondary Outcomes (1)

• smartphone enabled training and injury prevention program

  during 12-month preventative training intervention

Study Arms (2)

intervention

EXPERIMENTAL

preventative training program

Other: preventative training program

control

NO INTERVENTION

no such training

Interventions

preventative training program OTHER

complementary training of leg-, hip- and core-strength/stability

intervention

Eligibility Criteria

• Age: 13 Years - 36 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

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

You may not qualify if:

• No written informed consent

Sponsors & Collaborators

• Balgrist University Hospital: lead
• Swiss National Science Foundation: collaborator

Study Sites (1)

Balgrist University Hospital Balgrist Move>Med

Zurich, 8008, Switzerland

Location

Study Officials

• Jörg Spörri, PD Dr.

  Balgrist University Hospital

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: SEQUENTIAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Model Details: Intervention with historical control group

Study Record Dates

• First Submitted: July 12, 2019
• First Posted: July 16, 2019
• Study Start: October 1, 2017
• Primary Completion: February 28, 2022
• Study Completion: February 28, 2022
• Last Updated: March 3, 2023

Record last verified: 2023-03

Data Sharing

• IPD Sharing: Will not share

Locations

CH (1)