Youth Throwers Respond to Stretching (Safethrow)

The recruitment status of this study is unknown because the information has not been verified recently.

Verified February 2010 by Metzger, Charles, M.D..
Recruitment status was Active, not recruiting

Sponsor:

Information provided by:

Metzger, Charles, M.D.

ClinicalTrials.gov Identifier:

NCT01065181

First received: February 6, 2010

Last updated: February 8, 2010

Last verified: February 2010

History of Changes

Purpose

The purpose of this study is to document the rates of youth baseball player demographics, incidence of arm pain, usage of different pitch types, and degree of internal rotation contracture in the throwing versus the non-throwing shoulder. We followed a subgroup of players for a year to see if a particular stretch would help reduce the internal rotation contracture.

Condition
Shoulder Posterior Capsular Contracture


Study Type:	Observational
Study Design:	Observational Model: Cohort Time Perspective: Cross-Sectional
Official Title:	Shoulder Posterior Capsular Contracture in Youth Baseball Players: It Can be Improved by Stretching

Further study details as provided by Metzger, Charles, M.D.:

Primary Outcome Measures:

Degree of decrease in internal rotation contracture of the shoulder [ Time Frame: One year ] [ Designated as safety issue: No ]


Enrollment:	1261
Study Start Date:	January 2008
Estimated Study Completion Date:	December 2010
Estimated Primary Completion Date:	December 2010 (Final data collection date for primary outcome measure)

Detailed Description:

Introduction: Overhead throwing can cause contracture of the shoulder posterior-inferior glenohumeral ligament which can lead to injuries such as superior labral tears. We show that instruction on stretching can favorably alter progression of posterior contractures.

Methods: 1261 male baseball players ages 7-15 completed a questionnaire and shoulder examinations. Measurements of rotation of both shoulders were made with the subjects in the supine position with the scapula stabilized. Glenohumeral internal rotation deficit (GIRD) was calculated. Pitch type and player position, among other variables, were recorded. The prospective cohort was 175 players who were examined twice a year apart. Players with excessive GIRD (exGIRD) were given stretching instruction, and the control group was those without exGIRD who were not given instruction. Change in GIRD as a result of this intervention was documented.

Eligibility


Ages Eligible for Study:	8 Years to 15 Years
Genders Eligible for Study:	Male
Accepts Healthy Volunteers:	Yes
Sampling Method:	Non-Probability Sample

Study Population

1261 male baseball players ages 8 to 15

Criteria

Inclusion Criteria:

male
baseball player
ages 8 to 15

Exclusion Criteria:

female (suspected hormonal/gender influences on capsular elasticity)
prior throwing arm surgery

Contacts and Locations

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Please refer to this study by its ClinicalTrials.gov identifier: NCT01065181

Locations


United States, Texas
Greater Houston Orthopedic Specialists
Bellaire, Texas, United States, 77401

Sponsors and Collaborators

Metzger, Charles, M.D.

Investigators


Principal Investigator:	Charles L Metzger, MD	Memorial Hermann Health System

More Information

Publications:

Awan R, Smith J, Boon AJ. Measuring shoulder internal rotation range of motion: a comparison of 3 techniques. Arch Phys Med Rehabil. 2002 Sep;83(9):1229-34.

Lyman S, Fleisig GS, Waterbor JW, Funkhouser EM, Pulley L, Andrews JR, Osinski ED, Roseman JM. Longitudinal study of elbow and shoulder pain in youth baseball pitchers. Med Sci Sports Exerc. 2001 Nov;33(11):1803-10.

Lyman S, Fleisig GS, Andrews JR, Osinski ED. Effect of pitch type, pitch count, and pitching mechanics on risk of elbow and shoulder pain in youth baseball pitchers. Am J Sports Med. 2002 Jul-Aug;30(4):463-8.

Dun S, Loftice J, Fleisig GS, Kingsley D, Andrews JR. A biomechanical comparison of youth baseball pitches: is the curveball potentially harmful? Am J Sports Med. 2008 Apr;36(4):686-92. Epub 2007 Nov 30.

Fleisig GS, Weber A, Hassell N, Andrews JR. Prevention of elbow injuries in youth baseball pitchers. Curr Sports Med Rep. 2009 Sep-Oct;8(5):250-4. doi: 10.1249/JSR.0b013e3181b7ee5f. Review.

Nissen CW, Westwell M, Ounpuu S, Patel M, Solomito M, Tate J. A biomechanical comparison of the fastball and curveball in adolescent baseball pitchers. Am J Sports Med. 2009 Aug;37(8):1492-8. doi: 10.1177/0363546509333264. Epub 2009 May 15.

Dwelly PM, Tripp BL, Tripp PA, Eberman LE, Gorin S. Glenohumeral rotational range of motion in collegiate overhead-throwing athletes during an athletic season. J Athl Train. 2009 Nov-Dec;44(6):611-6. doi: 10.4085/1062-6050-44.6.611.

Bach HG, Goldberg BA. Posterior capsular contracture of the shoulder. J Am Acad Orthop Surg. 2006 May;14(5):265-77. Review.

Grossman MG, Tibone JE, McGarry MH, Schneider DJ, Veneziani S, Lee TQ. A cadaveric model of the throwing shoulder: a possible etiology of superior labrum anterior-to-posterior lesions. J Bone Joint Surg Am. 2005 Apr;87(4):824-31.

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.

Nakamizo H, Nakamura Y, Nobuhara K, Yamamoto T. Loss of glenohumeral internal rotation in little league pitchers: a biomechanical study. J Shoulder Elbow Surg. 2008 Sep-Oct;17(5):795-801. doi: 10.1016/j.jse.2008.02.013. Epub 2008 Jun 20.

Olsen SJ 2nd, Fleisig GS, Dun S, Loftice J, Andrews JR. Risk factors for shoulder and elbow injuries in adolescent baseball pitchers. Am J Sports Med. 2006 Jun;34(6):905-12. Epub 2006 Feb 1.

Klingele KE, Kocher MS. Little league elbow: valgus overload injury in the paediatric athlete. Sports Med. 2002;32(15):1005-15. Review.

Mair SD, Uhl TL, Robbe RG, Brindle KA. Physeal changes and range-of-motion differences in the dominant shoulders of skeletally immature baseball players. J Shoulder Elbow Surg. 2004 Sep-Oct;13(5):487-91.

Reiss M, Reiss G. [Current aspects of handedness]. Wien Klin Wochenschr. 1999 Dec 23;111(24):1009-18. Review. German.

Lyman S, Fleisig GS. Baseball injuries. Med Sport Sci. 2005;49:9-30. Review.

Kerut EK, Kerut DG, Fleisig GS, Andrews JR. Prevention of arm injury in youth baseball pitchers. J La State Med Soc. 2008 Mar-Apr;160(2):95-8. Review.


Responsible Party:	Charles Metzger, M.D., The University of Texas Health Science Center at Houston
ClinicalTrials.gov Identifier:	NCT01065181 History of Changes
Other Study ID Numbers:	Safethrow01
Study First Received:	February 6, 2010
Last Updated:	February 8, 2010
Health Authority:	United States: Institutional Review Board

Keywords provided by Metzger, Charles, M.D.:


shoulder posterior inferior glenohumeral ligament posterior capsule	capsular contracture baseball throwing injury

Additional relevant MeSH terms:


Contracture Joint Diseases Muscular Diseases Musculoskeletal Diseases

ClinicalTrials.gov processed this record on February 27, 2015

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