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ShoulderNCT06854692

Impact of Cervical Exercises During Simulated Game on Throwing Shoulder Motion and Strength

A study testing Cervical retraction exercise in people with Shoulder, run by Sacred Heart University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The goal of this clinical trial is to investigate the impact of performing cervical exercises during a simulated game on shoulder range of motion and strength in collegiate baseball picthers. Read more about this study

Who is it for?
Ages 18 years and older, men onlyHealthy volunteers can take part
Conditions the study is for
Shoulder
What is being tested?
Cervical retraction exercise
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteUnited States
Study dates
31 May 2025to 29 Dec 2025
Phase
Interventional
Are there results?
None posted in the registry

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 18 years and older
  • Men only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • an overhead thrower over the age of 18 years old
  • currently painfree while throwing at their usual intensity

Who cannot join

  • previous shoulder or elbow surgery on the throwing arm within the last 12 months
  • currently in the post-operative phase of a shoulder or elbow surgery on the throwing arm
  • currently participating in a rehabilitation program for shoulder or elbow pain
  • currently not able to throw due to shoulder or elbow pain

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Sacred Heart University

    Fairfield, Connecticut, 06825

Other trials in United States

About this study

Official title: In-game Cervical Exercises to Reduce Subsequent Post-game Decrease of Shoulder Internal Rotation Range of Motion and External Rotation Strength in Baseball Pitchers

The goal of this clinical trial is to investigate the impact of performing cervical exercises during a simulated game on shoulder range of motion and strength in collegiate baseball picthers. The main questions it aims to answer are:

Can performing cervical retraction/extension exercises help to maintain shoulder internal rotation range of motion in the throwing shoulder after a pitching session? Can performing cervical retraction/extension exercises help to maintain shoulder external rotation strength in the throwing shoulder after a pitching session?

Read more

Researchers will compare the effects of cervical retraction/extension exercises to no exercise to see if shoulder range of motion or strength is impacted.

Participants will perform end-range cervical retraction and cervical retraction with extension, holding the end-range of motion for 3 seconds and performing 10 repetitions of each exercise between each inning of a simulated 5-inning game.

Read the detailed description

Glenohumeral internal rotation deficit (GIRD) and rotator cuff weakness have been identified as predisposing factors in sustaining a shoulder or elbow injury in pitchers. The appearance of GIRD in symptomatic throwers has been attributed to osseous adaptations as well as soft tissue restrictions of the posterior capsule, deltoid and posterior cuff. Trakis identified that those adolescent pitchers with pain complaints had presented with weakness of the posterior shoulder musculature. Tyler noted preseason supraspinatus weakness was significantly associated with an increase in shoulder and elbow injury risk in high school pitchers. Despite studies indicating a correlation with rotator cuff weakness and injury, there is a lack of consensus on the underlying cause of the rotator cuff weakness.

The presentation of GIRD and rotator cuff weakness typically occurs in tandem and a question arises if these are linked, and if they might actually occur in response to the act of throwing. A subsequent loss of internal rotation range of motion and weakness of external rotation has been noted immediately following pitching. In a study of 67 asymptomatic professional pitchers, Reinold found a significant loss of passive shoulder internal rotation (IR) immediately following pitching that was also evident 24 hours after throwing. Reinold purported that the altered range of motion may be related to acute musculotendinous adaptations in response to the eccentric muscle activity of the external rotators during the throwing motion. Gandhi found a decrease in external rotation strength and a statistically and clinically significant decrease in voluntary muscle activation of the infraspinatus immediately following pitching in a simulated game. His contention was that the weakness was due to incomplete neuromuscular recruitment.

The posterior rotator cuff demonstrates large electromyographic (EMG) activity during the act of throwing. Overused muscle shortens over time, changing the muscle length-tension properties and becoming more readily active and weaker after time. The cause of the weakness may be neuro-reflexive or structural in nature. The combination of loss of IR and weakness of the external rotators might be explained by the concept of "tightness weakness" as described by Janda. The author's propose that the loss of shoulder internal rotation range of motion and external rotation strength may be linked and centrally mediated from the cervical spine. The act of throwing will produce a compressive force in the mid-cervical spine related to the compensatory movement of cervical extension, lateral flexion and rotation towards the throwing side. Pheasant demonstrated a decrease in shoulder external rotator strength following a maintained postural position of forward head and rounded shoulders for only 5 minutes. He noted that the resultant lower cervical flexion that accompanies the forward head posture can create foraminal stenosis at C4-C5, thereby causing a compression of the C5 nerve root.

In a case series, Pheasant demonstrated an increase in external rotation strength and resolution of pain complaints in 2 overhead athletes presenting with shoulder impingement by performing cervical retraction and cervical retraction with extension. He surmised that intermittent compression of the C5 nerve root could impair nerve function and ultimately cause rotator cuff weakness by affecting the suprascapular and axillary nerve that innervate the supraspinatus, teres minor and infraspinatus, and that the cervical retraction exercises reduced the compression. Internal rotation range of motion pre-intervention was only visually estimated and there was no indication of that motion being compared to the non-involved shoulder or if there was an improvement in motion following implementation of the exercises.

Conditions
Shoulder
Being tested
Cervical retraction exercise
Keywords
shoulder, throwing athlete, range of motion, strength, cervical retraction

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Cervical retraction exerciseOther

    Participants will perform end-range cervical retraction and cervical retraction with extension, holding the end-range of motion for 3 seconds and performing 10 repetitions of each exercise.

Study groups in NCT06854692
Study groupRoleWhat they receive
Intervention groupExperimentalNot described
Receives: Other: Cervical retraction exercise
Control groupNo interventionNot described

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Shoulder Internal Rotation ROM

    measure of shoulder range of motion

    Measured: Day 1

  2. Shoulder External Rotation Strength

    measure of shoulder strength

    Measured: Day 1

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Mar 2025
  2. Study start31 May 2025
  3. Primary completion29 Dec 2025
  4. Study completion29 Dec 2025

Resources

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
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06854692
Sponsor's protocol ID
IRB-FY2025-188
Status last verified
Jan 2026
First submitted
20 Feb 2025
Last updated
28 Jan 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Paige P, Frank CC, Larnder R. (2010) Assessment and treatment of muscle imbalance: The Janda approach. Human Kinetics.

  • Devaney LL, Denegar CR, Thigpen CA, Lepley AS, Edgar C, DiStefano LJ. Preseason Neck Mobility Is Associated With Throwing-Related Shoulder and Elbow Injuries, Pain, and Disability in College Baseball Pitchers. Orthop J Sports Med. 2020 May 18;8(5):2325967120920556. doi: 10.1177/2325967120920556. eCollection 2020 May.

    PubMed 32523967
  • Pheasant S, Haydt R, Gottstein T, Grasso A, Lombard N, Stone B. SHOULDER EXTERNAL ROTATOR STRENGTH IN RESPONSE TO VARIOUS SITTING POSTURES: A CONTROLLED LABORATORY STUDY. Int J Sports Phys Ther. 2018 Feb;13(1):50-57.

    PubMed 29484241
  • Pheasant S. CERVICAL CONTRIBUTION TO FUNCTIONAL SHOULDER IMPINGEMENT: TWO CASE REPORTS. Int J Sports Phys Ther. 2016 Dec;11(6):980-991.

    PubMed 27904800
  • Jobe FW, Tibone JE, Perry J, Moynes D. An EMG analysis of the shoulder in throwing and pitching. A preliminary report. Am J Sports Med. 1983 Jan-Feb;11(1):3-5. doi: 10.1177/036354658301100102.

    PubMed 6829838
  • Gandhi J, ElAttrache NS, Kaufman KR, Hurd WJ. Voluntary activation deficits of the infraspinatus present as a consequence of pitching-induced fatigue. J Shoulder Elbow Surg. 2012 May;21(5):625-30. doi: 10.1016/j.jse.2011.04.012. Epub 2011 Aug 10.

    PubMed 21831667
  • Reinold MM, Wilk KE, Macrina LC, Sheheane C, Dun S, Fleisig GS, Crenshaw K, Andrews JR. Changes in shoulder and elbow passive range of motion after pitching in professional baseball players. Am J Sports Med. 2008 Mar;36(3):523-7. doi: 10.1177/0363546507308935. Epub 2007 Nov 8.

    PubMed 17991783
  • Tyler TF, Mullaney MJ, Mirabella MR, Nicholas SJ, McHugh MP. Risk Factors for Shoulder and Elbow Injuries in High School Baseball Pitchers: The Role of Preseason Strength and Range of Motion. Am J Sports Med. 2014 Aug;42(8):1993-9. doi: 10.1177/0363546514535070. Epub 2014 Jun 3.

    PubMed 24893778
  • McClure P, Balaicuis J, Heiland D, Broersma ME, Thorndike CK, Wood A. A randomized controlled comparison of stretching procedures for posterior shoulder tightness. J Orthop Sports Phys Ther. 2007 Mar;37(3):108-14. doi: 10.2519/jospt.2007.2337.

    PubMed 17416125
  • Burkhart SS, Morgan CD, Kibler WB. The disabled throwing shoulder: spectrum of pathology Part I: pathoanatomy and biomechanics. Arthroscopy. 2003 Apr;19(4):404-20. doi: 10.1053/jars.2003.50128.

    PubMed 12671624
  • Crockett HC, Gross LB, Wilk KE, Schwartz ML, Reed J, O'Mara J, Reilly MT, Dugas JR, Meister K, Lyman S, Andrews JR. Osseous adaptation and range of motion at the glenohumeral joint in professional baseball pitchers. Am J Sports Med. 2002 Jan-Feb;30(1):20-6. doi: 10.1177/03635465020300011701.

    PubMed 11798991
  • Trakis JE, McHugh MP, Caracciolo PA, Busciacco L, Mullaney M, Nicholas SJ. Muscle strength and range of motion in adolescent pitchers with throwing-related pain: implications for injury prevention. Am J Sports Med. 2008 Nov;36(11):2173-8. doi: 10.1177/0363546508319049. Epub 2008 Jul 2.

    PubMed 18596197
  • Wilk KE, Macrina LC, Fleisig GS, Porterfield R, Simpson CD 2nd, Harker P, Paparesta N, Andrews JR. Correlation of glenohumeral internal rotation deficit and total rotational motion to shoulder injuries in professional baseball pitchers. Am J Sports Med. 2011 Feb;39(2):329-35. doi: 10.1177/0363546510384223. Epub 2010 Dec 4.

    PubMed 21131681
  • Garrison JC, Cole MA, Conway JE, Macko MJ, Thigpen C, Shanley E. Shoulder range of motion deficits in baseball players with an ulnar collateral ligament tear. Am J Sports Med. 2012 Nov;40(11):2597-603. doi: 10.1177/0363546512459175. Epub 2012 Sep 26.

    PubMed 23019251

Questions about this trial

What is this clinical trial studying?

A study testing Cervical retraction exercise in people with Shoulder, run by Sacred Heart University at 1 site in United States.

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 2 inclusion and 4 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: finished, as of the sponsor's last update on 28 Jan 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 United States. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Shoulder Internal Rotation ROM (time frame: Day 1). 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 NCT06854692, which also lists 14 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 28 Jan 2026.

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