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CompletedNCT01821183Updated Aug 7, 2013

Strength and Strength-ratio of Hip Rotator Muscles at Soccer Players

An observational study in Hip Injuries, Muscular Atrophy and Dysfunction, sponsored by University Hospital, Basel, Switzerland. Completed at 1 site in Switzerland. Open to male participants aged 18 Years to 35 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2013-08-07.

Sponsored by University Hospital, Basel, Switzerland · Observational

Study type
Observational
Time perspective
Cross-sectional
Enrollment
30
Ages
18 Years to 35 Years
Sex
Male
01

Study summary

At this investigation we want to find out whether there is a difference in muscle strength of the internal and external rotation hip muscles between soccer players and non-soccer players caused by typical movement patterns seen in soccer sport.

Read the detailed description

Nontraumatic hip injuries are a problem often seen in Soccer Players. A biomechanical formation mechanism is probably. Little research has focused on the measurement of hip external and internal rotation strength at soccer players. The purpose of this study is to investigate the influence of soccer sports at the isometric force and force ratio of the hip rotator muscle system. Two samples of Athletes will be compared: Soccer Players (N15) and Non-soccer players (N15) matched in sex, age and level of physical activity to investigate hip rotator force in 3 different angles of hip flexion (0°/45°/90°). The measurement will be made with a handheld dynamometer.

02

Conditions studied

  • Hip Injuries
  • Muscular Atrophy
  • Dysfunction
03

In context

Hip Injuries

62 studies on the registry are indexed under Hip Injuries; 13 are open to participants now.

This study's enrollment of 30 is below the median of 57 across 20 observational studies indexed under Hip Injuries.

Browse Hip Injuries studies →

Lead sponsor

University Hospital, Basel, Switzerland is the lead sponsor of 989 studies on the registry; 191 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 35 Years
Sexes eligible
Male
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

soccer club of Sarnen, Switzerland Residents of Sarnen and Basel, Switzerland

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

Study group:

Amateur footballers (N15) in the age between 18 and 35 At least five years of active footballer's career Football training twice weekly Active participation in play No pain or limitations in the area of the hip or the lower extremity

Control group:

Athletes (N15), non-soccer players with now asymmetric leg activities In the age between 18 and 35 At least twice weekly sports activity for at least 30 minutes No pain or limitations in the area of the hip or the lower extremity

Exclusion criteria

Exclusion criteria:

Professions with asymmetric leg activities Pain or limitations in the area of the hip or the lower extremity Surgery on the hip in the prehistory

05

Study design

Time perspective
Cross-sectional
Enrollment
30 participants (actual)
Patient registry
No

Groups and cohorts

  • hip rotators muscle strength
  • control group

    no intervention

06

What researchers measure

Primary outcomes

  1. Strength of the internal and external rotators of the hip

    Time frame: "up to 10 months"

07

Study locations

1 site
  • Physiotherapy Burch&Keiser
    Sarnen, Canton of Obwalden 6060, Switzerland
08

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Apr 2013, a primary completion of Aug 2013 and a completion of Aug 2013. It does not say whether these dates are actual or estimated.

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

Registered
Mar 26, 2013
First posted
Mar 29, 2013
Start
Apr 2013
Primary completionActual
Aug 2013
CompletionActual
Aug 2013
Last update
Aug 7, 2013
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 Aug 7, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01821183
Responsible party
Sponsor
First posted
Mar 29, 2013
Start date
Apr 2013
Primary completion
Aug 2013
Completion
Aug 2013
Last update
Aug 7, 2013

Study contacts

Niklaus F. Friederich, MD Professor
principal investigator · Head of degree program: Master of Functional Kinetic Science, University of Basel, Switzerland

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2013. You cannot join it, but the record below documents what was studied.

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Discussion

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