Analysis of Hip Rotator Strength and ROM in Amateur Soccer Players

Analysis of Hip Rotator Strength and ROM in Amateur Soccer Players: A Cross-Sectional Study

This observational study aims to analyze hip rotator strength and range of motion, comparing measurements taken with the hip positioned at 90° and 0°. Clinical history data, as well as hip strength and range of motion measurements, will be collected during the 2022/23 and 2023/24 seasons.

Study Overview

• Status: Completed
• Conditions: Hip Joint

Detailed Description

This cross-sectional observational study aims to analyze the relationship between hip rotator strength and range of motion, comparing measurements taken with the hip positioned at 90° and at 0°. The study seeks to determine whether hip position influences the assessment of rotational strength and flexibility, providing useful information for both clinical evaluation and athletic performance monitoring. Data will be collected through direct measurements of hip strength and range of motion. Assessments will be performed during the 2022/23 and 2023/24 seasons. The findings are expected to contribute to a better understanding of how hip joint positioning affects rotator muscle function and mobility in healthy and active individuals.

• Study Type: Observational
• Enrollment (Actual): 56

Contacts and Locations

Study Locations

• Spain
  • Valencia
    • Valencia, Valencia, Spain, 46003
      • CD Serranos Valencia

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult
• Accepts Healthy Volunteers: Yes

• Sampling Method: Non-Probability Sample

Study Population

Amateur soccer players from the Valencian region

Description

Inclusion Criteria:

• male amateur soccer players
• aged between 18-50
• players who were active participants in training sessions.

Exclusion Criteria:

• participants reporting current hip or groin pain, regardless of whether the pain resulted in time loss
• players with hip/groin injury in the preceding 4 months before study initiation
• players with longstanding injuries (>6 weeks) in the lower extremities
• previous injury or surgery in the lumbopelvic or hip region in the past year
• players with >2/10 on the Visual Analogue Scale during ROM and strength testing protocols of this study.

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Hip Rotation Strength	Maximal isometric strength of the hip internal and external rotator muscles measured at 0° and 90° of hip flexion.	At the time of assessment (single study visit)
Hip Rotation Range of Motion	Passive range of motion for hip internal and external rotation measured at 0° and 90° of hip flexion.	At the time of assessment (single study visit)

Collaborators and Investigators

• Sponsor: University of Valencia
• Investigators: Principal Investigator: Josep Benitez-Martinez, Dr, Universitat de Valencia

Publications and helpful links

General Publications

• Hoglund LT, Wong AL, Rickards C. The impact of sagittal plane hip position on isometric force of hip external rotator and internal rotator muscles in healthy young adults. Int J Sports Phys Ther. 2014 Feb;9(1):58-67.

Study record dates

Study Major Dates

• Study Start (Actual): September 1, 2022
• Primary Completion (Actual): April 29, 2024
• Study Completion (Actual): May 10, 2024

Study Registration Dates

• First Submitted: November 14, 2025
• First Submitted That Met QC Criteria: November 14, 2025
• First Posted (Actual): November 18, 2025

Study Record Updates

• Last Update Posted (Actual): November 18, 2025
• Last Update Submitted That Met QC Criteria: November 14, 2025
• Last Verified: November 1, 2025

More Information

Terms related to this study

• Other Study ID Numbers: 1662009173390

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No