Morphological Asymmetry in Elite Female Tennis Players

Development; Unilateral Clinical Trial

— AsymFemaleTP  

Official title:

Morphological Asymmetry in Elite Female Tennis Players Competing in an International Tournament in Belgium: an Observational Study

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT03142243
• Other study ID #: Asym Female Elite TP
• Status: Not yet recruiting
• Phase: N/A
• First received: May 3, 2017
• Last updated: May 17, 2017
• Start date: July 1, 2017
• Est. completion date: December 31, 2019

Study information

• Verified date: May 2017
• Source: Vrije Universiteit Brussel
• Contact: Laurent Chapelle, MSc
• Phone: +32477472756
• Email: laurent.chapelle[@]vub.be
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

Humans generally develop a preferred upper and lower extremity. Due to repetitive uneven loading, this gradually results in morphological adaptations to the dominant side of the body. The corresponding morphological asymmetry can be further accentuated by (intensively) practicing a unilateral sport such as tennis, which is very popular. Yet, research on this particular topic is scarce, especially in (elite) female players. Furthermore, existing studies only examine the degree of morphological asymmetry of the upper extremity. Therefore, the aim of this study is to explore the morphological differences between the dominant and the non-dominant extremity/side on a whole body level (trunk, upper and lower extremity) in elite female tennis players.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 30
• Est. completion date: December 31, 2019
• Est. primary completion date: December 31, 2018
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Female
• Age group: 16 Years to 40 Years

Eligibility

Inclusion Criteria:

• Participants will have to be professional, or elite, female tennis players.

• The players will have to participate in international tournaments in Belgium.

Exclusion Criteria:

Related Conditions & MeSH terms

• Development; Unilateral

Locations

Country	Name	City	State
Belgium	Vrije Universiteit Brussel	Brussels

Sponsors (1)

Lead Sponsor	Collaborator
Vrije Universiteit Brussel

Country where clinical trial is conducted

Belgium, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Demographics	Date of birth (in day/month/year to subsequently determine age) Gender: male or female Dominant upper extremity: right or left Dominant lower extremity: right or left Playing experience (in years) Average training hours (in hours per week); These values will be determined cross-sectionally and reported as mean and standard deviation.	01/07/2017 - 31/12/2018
Primary	Anthropometry	Stature (cm) Weight (kg) Body Mass Index (kg/m²) Upper extremity length (cm) Lower extremity length (cm); These values will be determined cross-sectionally and reported as mean and standard deviation.	01/07/2017 - 31/12/2018
Primary	Body Composition	Whole body composition: dual energy x-ray absorptiometry. Fat mass (g) lean mass (g) Bone mass (g) Bone mineral content (g) Bone mineral density (g/cm²) Bone area (cm²); Muscle thickness and subcutaneous fat layer: Ultrasound. Thickness of the subcutaneous fat (in mm) and muscle thickness (in mm) of the dominant and non-dominant M. Biceps Brachialis, M. Triceps Brachialis, M. Rectus Abdominis, M. Quadriceps Femoris and Hamstrings.; Circumferences: anthropometric tape measure. Upper and lower arm (in cm) Upper and lower leg (in cm); These values will be determined cross-sectionally and reported as mean and standard deviation.; In addition, all these outcome measures will be determined and reported for both the dominant and non-dominant upper and lower extremity separately.	01/07/2017 - 31/12/2018
Primary	Morphological asymmetry	Side-to-side difference (i.e. dominant versus non-dominant upper and lower extremity) will be calculated and expressed as a percentage (extremity symmetry index (%)) for the outcome measures described above (i.e. fat mass, muscle mass, bone mass, bone mineral content and bone mineral density).; Extremity symmetry index = (measure dominant extremity or side / measure non-dominant extremity of side - 1) x 100	01/07/2017 - 31/12/2018