Medial Epicondyle ApophysitisNCT07723677
Powerball for Medial Epicondyle Apophysitis
A study testing BowerBall Group in people with Medial Epicondyle Apophysitis, run by Nehad Ahmed Youness Abo-zaid at 1 site in Egypt.
Trial summary
Traction apophysitis of the medial epicondyle (MEC) is a common elbow injury in adolescent baseball players. The underlying pathology of the lesions associated with apophysitis seems to be due to repetitive traction stress via the medial ulnar collateral ligament (MUCL) to the skeletally immature MEC, as seen in young… Read more about this study
- Who is it for?
- Ages 12 to 18 years
- Conditions the study is for
- Medial Epicondyle Apophysitis
- What is being tested?
- BowerBall Group
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 60 participants
- Where
- 1 siteEgypt
- Study dates
- 2 Aug 2026to 20 Nov 2026
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 12 to 18 years
- All sexes
- No healthy volunteers
- Child, Adult
Who may be able to join
- Their age will be ranging from 12 to 18 years.
- Cases diagnosed with medial epicondyle apophysitis.
- Cases participated in this study will from both sexes.
- Cases receiving standard treatment protocol.
- Cases with a disease duration of more than four months
Who cannot join
- Cases with resent fractures in affected upper limb.
- Cases diagnosis of any neurological disease or musculoskeletal disease affecting upper extremity functional ability.
- Uncooperative cases.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Ola A A Kamal, Lecturer, Lecturer contact
Egypt1 site
Nehad A Abo-zaid
Asyut
Nehad A Abo-zaid,, Assistant Professor, 01008980727, dr.nehadahmed@svu.edu.eg
About this study
Official title: The Efficacy of Powerball Training on Medial Epicondyle Apophysitis in Adolescent Athletes
Traction apophysitis of the medial epicondyle (MEC) is a common elbow injury in adolescent baseball players. The underlying pathology of the lesions associated with apophysitis seems to be due to repetitive traction stress via the medial ulnar collateral ligament (MUCL) to the skeletally immature MEC, as seen in young baseball players. Various types of morphological changes are observed at the MEC in baseball players, and fragmentation and hypertrophy have been commonly reported
Read the detailed description
Phases of rehabilitation for Medial Epicondyle Apophysitis Phase I treatment involves resting and protecting the elbow to permit healing, to prevent further injury, and to control pain and swelling. Phase II treatment begins once pain and swelling have subsided to the point where the athlete can comfortably bear weight and walk from place to place. According to recent studies, vibrating devices like the PowerBall gadget have a greater effect on people with tennis elbow injuries than dumbbell exercise does on muscular strength, discomfort, range of motion, and health quality. Exercises using the "PowerBall device" are thought to be effective resistance training during the chronic period because the muscles of the wrist, elbow, and shoulder, apply both internal and external pressure. Muscle strength may have grown over this period because of neurovascularization, the creation of new blood vessels during the eccentric phase of training that enhances blood flow and speeds up tissue repair.
- Conditions
- Medial Epicondyle Apophysitis
- Being tested
- the control group, BowerBall Group
- Keywords
- Medial Epicondyle Apophysitis, PowerBall
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
the control groupOther
Also called Group (A)
All adolescents will receive 60 min. of the selected physical therapy program including strengthening the muscles of upper limb, stretching for elbow flexors and forearms pronators
BowerBall GroupOther
all adolescents will receive selected physical therapy program for 30 min. containing strengthening the muscles of upper limb, stretching for elbow flexors and forearms pronators plus 30 of BowerBalltraining
| Study group | Role | What they receive |
|---|---|---|
| The Control Group Group (A) | Experimental | Not described Receives: Other: the control group |
| The Study Group Group (B) | Experimental | The Study Group Group (B) Receives: Other: BowerBall Group |
What is being measured
The primary outcome is the main question the study is designed to answer.
Visual Analogue Scale
pain assessment tool, the scale ranged from 0-10 (at which 0 indicate no pain and 10 indicate sever pain)
Measured: at day 0
Visual Analogue Scale
pain assessment tool, the scale ranged from 0-10 (at which 0 indicate no pain and 10 indicate sever pain)
Measured: at day 90
Secondary outcomes (4)
Range of Motion
Elbow Flexion angle degree
Measured: at day 0
Range of Motion
Elbow Flexion angle degree
Measured: at day 90
Range of Motion
Elbow Extension angle degree
Measured: at day 0
Range of Motion
Elbow Extension angle degree
Measured: at day 90
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Jul 2026
- Study start2 Aug 2026 (estimated)
- Primary completion8 Oct 2026 (estimated)
- Study completion20 Nov 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (6)Papers the sponsor has linked to this study.
- Other trials for Medial Epicondyle ApophysitisStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- G 1 (control) received traditional physical therapy program for 60 min. G 2 (study) received traditional physical therapy program for 30 min. and PowerBall for 30 min. all groups treated for 3 successive months.
- Masking
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 60 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Nehad Ahmed Youness Abo-zaid
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Nehad Ahmed Youness Abo-zaid, South Valley University
- Investigators
- Nehad A Abo-zaid, Principal investigator, South Valley University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07723677
- Sponsor's protocol ID
- P.T.REC/012/006567
- Status last verified
- Jul 2026
- First submitted
- 19 Jul 2026
- Last updated
- 23 Jul 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
T. Tsuruta, H. Mine The primary treatment for the inferior fragmentation of humeral medial epicondyle in young baseball players J Jpn Elbow Soc, 20 (2013), pp. 92-95
Takagishi K, Matsuura T, Masatomi T, Chosa E, Tajika T, Watanabe M, Iwama T, Otani T, Inagaki K, Ikegami H, Aoki M, Kato K, Okuwaki T, Sairyo K, Kameyama Y, Maeda A, Beppu M. Shoulder and elbow pain in elementary school baseball players: The results from a nation-wide survey in Japan. J Orthop Sci. 2017 Jul;22(4):682-686. doi: 10.1016/j.jos.2017.03.016. Epub 2017 May 3.
PubMed 28478963Osbahr DC, Chalmers PN, Frank JS, Williams RJ 3rd, Widmann RF, Green DW. Acute, avulsion fractures of the medial epicondyle while throwing in youth baseball players: a variant of Little League elbow. J Shoulder Elbow Surg. 2010 Oct;19(7):951-7. doi: 10.1016/j.jse.2010.04.038. Epub 2010 Aug 5.
PubMed 20688542Harada M, Takahara M, Sasaki J, Mura N, Ito T, Ogino T. Using sonography for the early detection of elbow injuries among young baseball players. AJR Am J Roentgenol. 2006 Dec;187(6):1436-41. doi: 10.2214/AJR.05.1086.
PubMed 17114533Hodge C, Schroeder JD. Medial Epicondyle Apophysitis (Little League Elbow). 2023 Mar 27. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Available from http://www.ncbi.nlm.nih.gov/books/NBK570592/
PubMed 34033354Otoshi K, Kikuchi S, Kato K, Kaneko Y, Mashiko R, Sato R, Igari T, Kaga T, Konno S. The influence of chronic medial epicondylar apophysitis on medial ulnar collateral ligament insufficiency-: a retrospective cohort study. JSES Int. 2022 Feb 1;6(3):539-544. doi: 10.1016/j.jseint.2021.12.014. eCollection 2022 May.
PubMed 35572434
Study at a glance
From the registry record, last updated by the sponsor on 23 Jul 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Efficacy of Powerball Training on Medial Epicondyle Apophysitis in Adolescent Athletes
- ClinicalTrials.gov ID
- NCT07723677
- Acronym / sponsor ID
- P.T.REC/012/006567
- Conditions
- Medial Epicondyle Apophysitis
- Keywords
- Medial Epicondyle Apophysitis, PowerBall
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 60 participants (estimated)
- Lead sponsor
- Nehad Ahmed Youness Abo-zaidUniversity, hospital or other
- Study start
- 2 Aug 2026 (estimated)
- Primary completion
- 8 Oct 2026 (estimated)
- Study completion
- 20 Nov 2026 (estimated)
- First posted
- 23 Jul 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Traction apophysitis of the medial epicondyle (MEC) is a common elbow injury in adolescent baseball players. The underlying pathology of the lesions associated with apophysitis seems to be due to repetitive traction stress via the medial ulnar collateral ligament (MUCL) to the skeletally immature MEC, as seen in young baseball players. Various types of morphological changes are observed at the MEC in baseball players, and fragmentation and hypertrophy have been commonly reported
Detailed description
Phases of rehabilitation for Medial Epicondyle Apophysitis Phase I treatment involves resting and protecting the elbow to permit healing, to prevent further injury, and to control pain and swelling. Phase II treatment begins once pain and swelling have subsided to the point where the athlete can comfortably bear weight and walk from place to place. According to recent studies, vibrating devices like the PowerBall gadget have a greater effect on people with tennis elbow injuries than dumbbell exercise does on muscular strength, discomfort, range of motion, and health quality. Exercises using the "PowerBall device" are thought to be effective resistance training during the chronic period because the muscles of the wrist, elbow, and shoulder, apply both internal and external pressure. Muscle strength may have grown over this period because of neurovascularization, the creation of new blood vessels during the eccentric phase of training that enhances blood flow and speeds up tissue repair.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 2
- Model description
- G 1 (control) received traditional physical therapy program for 60 min. G 2 (study) received traditional physical therapy program for 30 min. and PowerBall for 30 min. all groups treated for 3 successive months.
| Arm | Type | Receives |
|---|---|---|
| The Control Group Group (A) | Experimental | Other: the control group |
| The Study Group Group (B) | Experimental | Other: BowerBall GroupThe Study Group Group (B) |
Who may qualify
- Ages
- 12 to 18 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
Key inclusion criteria (5 listed)
- Their age will be ranging from 12 to 18 years.
- Cases diagnosed with medial epicondyle apophysitis.
- Cases participated in this study will from both sexes.
- Cases receiving standard treatment protocol.
- Cases with a disease duration of more than four months
Key exclusion criteria (3 listed)
- Cases with resent fractures in affected upper limb.
- Cases diagnosis of any neurological disease or musculoskeletal disease affecting upper extremity functional ability.
- Uncooperative cases.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| the control groupAlso: Group (A)All adolescents will receive 60 min. of the selected physical therapy program including strengthening the muscles of upper limb, stretching for elbow flexors and forearms pronators | Other | The Control Group Group (A) |
| BowerBall Groupall adolescents will receive selected physical therapy program for 30 min. containing strengthening the muscles of upper limb, stretching for elbow flexors and forearms pronators plus 30 of BowerBalltraining | Other | The Study Group Group (B) |
Primary outcome
Visual Analogue Scale
Time frame: at day 0
pain assessment tool, the scale ranged from 0-10 (at which 0 indicate no pain and 10 indicate sever pain)
Visual Analogue Scale
Time frame: at day 90
pain assessment tool, the scale ranged from 0-10 (at which 0 indicate no pain and 10 indicate sever pain)
4 secondary outcomes
Range of Motion
Time frame: at day 0
Range of Motion
Time frame: at day 90
Range of Motion
Time frame: at day 0
Range of Motion
Time frame: at day 90
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 23 Jul 2026.
- BackgroundT. Tsuruta, H. Mine The primary treatment for the inferior fragmentation of humeral medial epicondyle in young baseball players J Jpn Elbow Soc, 20 (2013), pp. 92-95
- Background: PubMed 28478963Takagishi K, Matsuura T, Masatomi T, Chosa E, Tajika T, Watanabe M, Iwama T, Otani T, Inagaki K, Ikegami H, Aoki M, Kato K, Okuwaki T, Sairyo K, Kameyama Y, Maeda A, Beppu M. Shoulder and elbow pain in elementary school baseball players: The results from a nation-wide survey in Japan. J Orthop Sci. 2017 Jul;22(4):682-686. doi: 10.1016/j.jos.2017.03.016. Epub 2017 May 3.
- Background: PubMed 20688542Osbahr DC, Chalmers PN, Frank JS, Williams RJ 3rd, Widmann RF, Green DW. Acute, avulsion fractures of the medial epicondyle while throwing in youth baseball players: a variant of Little League elbow. J Shoulder Elbow Surg. 2010 Oct;19(7):951-7. doi: 10.1016/j.jse.2010.04.038. Epub 2010 Aug 5.
- Background: PubMed 17114533Harada M, Takahara M, Sasaki J, Mura N, Ito T, Ogino T. Using sonography for the early detection of elbow injuries among young baseball players. AJR Am J Roentgenol. 2006 Dec;187(6):1436-41. doi: 10.2214/AJR.05.1086.
- Background: PubMed 34033354Hodge C, Schroeder JD. Medial Epicondyle Apophysitis (Little League Elbow). 2023 Mar 27. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Available from http://www.ncbi.nlm.nih.gov/books/NBK570592/
- Background: PubMed 35572434Otoshi K, Kikuchi S, Kato K, Kaneko Y, Mashiko R, Sato R, Igari T, Kaga T, Konno S. The influence of chronic medial epicondylar apophysitis on medial ulnar collateral ligament insufficiency-: a retrospective cohort study. JSES Int. 2022 Feb 1;6(3):539-544. doi: 10.1016/j.jseint.2021.12.014. eCollection 2022 May.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Ola A A Kamal, Lecturer, Lecturer contact
Nehad A Abo-zaid principal investigator
South Valley University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing BowerBall Group in people with Medial Epicondyle Apophysitis, run by Nehad Ahmed Youness Abo-zaid at 1 site in Egypt.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 23 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Nehad A Abo-zaid,, Assistant Professor (01008980727, dr.nehadahmed@svu.edu.eg), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Visual Analogue Scale (time frame: at day 0). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07723677, which also lists 6 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Jul 2026.