Clinical trial Recruiting at 2 sites Interventional Ages 18 to 35

Core strengthening added to shoulder training for faster tennis serves

Official title: The Effect of Adding Core Muscle Training With Shoulder Strengthening in Tennis Players: A Randomized Controlled Trial

Run by Cairo University · NCT07733869 · Data updated 2026-11-12

In healthy tennis players, adding core exercises to shoulder training is tested to see if it makes flat serve speed faster.

Quick facts

Study typeInterventional
Ages18 Years to 35 Years
SexAll
Enrollment120 (estimated)
SponsorCairo University
Academic / other
Locations2 sites (Beirut, Beirut and 1 other locations)
StatusRecruiting
StartedJune 15, 2026
Main results expectedSeptember 15, 2026
Study endsSeptember 20, 2026
Registry record updatedJuly 29, 2026
Trial IDNCT07733869 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are healthy adults 18-35 with 2+ tennis sessions per week for at least a year and no recent shoulder pain or spine problems.

Probably not a fit

Individuals with prior shoulder or spine injuries, current structured core/shoulder training, or recent related surgery may not benefit as much.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This randomized study compares two 12-week training programs in recreational to competitive non-professional tennis players. One group does shoulder strengthening with sham core work, the other adds actual core strengthening to the same shoulder program. Primary outcome is flat serve ball speed; secondary outcomes include serve accuracy and total glenohumeral arc of rotation. Participants are 18-35 years old, training 2 sessions per week, with assessments before and after the program. The study is conducted at Cairo University with collaboration from Beirut Arab University, and uses a 50-minute session format to explore the kinetic-chain impact of core strength on serving performance.

Why it matters

Potential benefit: If positive, core training could enhance serve speed and upper-body function, potentially improving overall serving performance for tennis players.

How similar studies have gone: Previous research on core strength and tennis performance has shown mixed results, making this a novel investigation in a controlled setup.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Healthy adults aged 18-35 years
* Recreational to competitive non-professional tennis players (currently playing ≥2 sessions/week for ≥1 year; NTRP 3.0-5.0 or equivalent ITN; no professional ranking or tour-level competition history)
* Right- or left-hand dominant (serve arm recorded)
* Able to perform a full flat serve without pain
* Willing to maintain current tennis training routine and refrain from starting other new strength/conditioning programs during the study

Exclusion Criteria:

* Current or history of shoulder pain/injury in the past 6 months (e.g., rotator cuff pathology, labral injury, impingement)
* Low back pain or lumbar spine pathology in the past 6 months
* Prior shoulder or spine surgery
* Systemic conditions affecting neuromuscular function (e.g., uncontrolled diabetes, neurological disorders)
* Pregnancy
* Current participation in a structured core or shoulder strengthening program

Where it's running

  • Beirut Arab University
    Beirut, Beirut, Lebanon
    Recruiting
  • BAU activities
    Beirut, Giza, Lebanon
    Recruiting

Study contacts

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.