Comparison of Functional and Traditional Strength and Power Training on U19 Soccer Players During Off-season in Norway: A Randomized Controlled Trial
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Enrollment
- 53
- Locations
- 2
- Primary Endpoint
- Loughborough soccer passing test
Study Overview
Brief Summary
The goal of this randomized controlled trial is to evaluate whether functional strength and power training or traditional strength and power training during the off-season can improve soccer-specific performance in trained male U19 Norwegian soccer players.
The main questions it aims to answer are:
Does functional training lead to greater improvements in technical soccer skills (passing, shooting, dribbling) compared to traditional training?
Do both training modalities improve mobility, dynamic balance, sprint speed, change of direction, and jumping performance?
Researchers will compare the functional training group, the traditional training group, and a control group to see if either training approach provides superior performance benefits.
Participants will:
Take part in an 8-week intervention.
Complete two weekly strength sessions (functional or traditional depending on allocation).
Attend two weekly soccer sessions during the first 4 weeks (all groups).
Undergo a standardized test battery measuring mobility, balance, technical skills, sprinting, change of direction, and vertical jump before and after the intervention.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Factorial
- Primary Purpose
- Other
- Masking
- None
Eligibility Criteria
- Ages
- 16 Years to 20 Years (Child, Adult)
- Sex
- Male
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Male soccer players aged 16-20 years.
- •Active competitors in the Norwegian G19
- •Division or the Norwegian Tipping League (Senior
- •Minimum of eight years of organized soccer experience.
- •At least two years of structured resistance training experience.
- •No concurrent involvement in other structured physical activity programs.
Exclusion Criteria
- •History of lower-limb injury within the past three months.
- •Inability to meet the required training attendance (≥14 out of 16 sessions).
- •Participation in additional structured training programs outside the intervention.
Outcomes
Primary Outcomes
Loughborough soccer passing test
Time Frame: 2 months
Measure precision in passing (Seconds)
Loughborough soccer shooting test
Time Frame: 2 months
Measure precision in shooting and reaction (Points and secounds )
Agility with ball
Time Frame: 2 months
Measure technical abilities with the ball (Seconds)
Loughborough soccer passing test
Time Frame: 2 months
Measure precision in passing (Seconds)
Loughborough soccer shooting test
Time Frame: 2 months
Measure precision in shooting and reaction (Points and secounds )
Agility with ball
Time Frame: 2 months
Measure technical abilities with the ball (Seconds)
Secondary Outcomes
- Active knee extension test(2 months)
- Hip External rotation(2 months)
- Hip Internal rotation(2 months)
- Active dorsi flexion test(2 months)
- Dynamic leap balance test(2 months)
- S180 sprinting test(2 months)
- Vertical jumping test(2 months)
- 10 m and 20 m linear sprint(2 months)
Investigators
Lasse Engberg Treu Lassen
Ph.D. candidate
Aalborg University